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Loturco I, Pereira LA, Moura TBMA, Mercer VP, Betelli MT, Ramos MS, Zabaloy S, Pareja-Blanco F. Jump Squats Performed with Both Light and Heavy Loads Have Similar Effects on the Physical Performance of Elite Rugby Players during the Initial Phase of the Competitive Period. J Hum Kinet 2024; 91:175-188. [PMID: 38689591 PMCID: PMC11057615 DOI: 10.5114/jhk/186340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 03/21/2024] [Indexed: 05/02/2024] Open
Abstract
We examined the effectiveness of two different jump-squat (JS) loading ranges on the physical performance of rugby players. Twenty-eight elite male rugby players were divided into two JS training groups: a light-load JS group ("LJS"; JS at 40% of the one-repetition maximum [1RM] in the half-squat (HS) exercise) and a heavy-load JS group ("HJS"; JS at 80% HS-1RM). Players completed the distinct training programs over four weeks, three times per week, during the initial phase of the competitive period. Pre- and post-training tests were conducted in the following sequence: vertical jumps, a 30-m speed test, peak power in the JS and the HS, and maximum isometric force in the HS. Additionally, the rating of perceived exertion (RPE) was assessed at the end of all training sessions throughout the intervention. A two-way ANOVA with repeated measures, followed by the Tukey's post-hoc test, was employed to analyze differences between groups. The level of significance was set at p < 0.05. Effect sizes were used to assess the magnitude of differences between pre- and post-training data. Except for the RPE values (which were lower in the LJS group), no significant changes were detected for any other variable. In summary, using either a light- (40% HS-1RM) or a heavy-load (80% HS-1RM) JS during the initial phase of the competitive period is equally effective in maintaining physical performance levels attained during the preceding training period (pre-season), with the significant advantage of the light-load protocol resulting in lower levels of the RPE. This finding may have important implications for resistance training programming, especially in disciplines where acute and chronic fatigue is always a problematic issue.
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Affiliation(s)
- Irineu Loturco
- NAR—Nucleus of High Performance in Sport, São Paulo, Brazil
- Department of Human Movement Sciences, Federal University of São Paulo, São Paulo, Brazil
- Department of Sport, Health, and Exercise Science, University of South Wales, Pontypridd, Wales, United Kingdom
| | | | | | | | - Marina T. Betelli
- NAR—Nucleus of High Performance in Sport, São Paulo, Brazil
- CBRu—Brazilian Rugby Confederation, São Paulo, Brazil
| | | | - Santiago Zabaloy
- Faculty of Physical Activity and Sports, University of Flores, Buenos Aires, Argentina
| | - Fernando Pareja-Blanco
- Physical Performance & Sports Research Center, Department of Sports and Computer Sciences, Universidad Pablo de Olavide, Seville, Spain
- Faculty of Sport Sciences, Department of Sports and Computer Sciences, Universidad Pablo de Olavide, Seville, Spain
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Riscart-López J, Sánchez-Valdepeñas J, Mora-Vela R, Caro-Ávalos J, Sánchez-González L, Sánchez-Moreno M, León-Prados JA, Pareja-Blanco F. Effects of 4 Different Velocity-Based Resistance-Training Programming Models on Physical Performance. Int J Sports Physiol Perform 2024; 19:271-279. [PMID: 38167650 DOI: 10.1123/ijspp.2023-0313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 10/22/2023] [Accepted: 11/14/2023] [Indexed: 01/05/2024]
Abstract
PURPOSE To examine the effects of 4 programming models (linear [LP], undulating [UP], reverse [RP], and constant [CP]) on physical performance. METHODS Forty-eight moderately strength-trained men were randomly assigned to LP, UP, RP, and CP groups according to their 1-repetition maximum (1RM) in the full-squat exercise (SQ) and followed an 8-week training intervention using the SQ and monitoring movement velocity for every repetition. All groups trained with similar mean relative intensity (65% 1RM), number of repetitions (240), sets (3), and interset recovery (4 min) throughout the training program. Pretraining and posttraining measurements included, in the SQ, 1RM load, the average velocity attained for all absolute loads common to pretests and posttests (AV), and the average velocity for loads that were moved faster (AV > 1) and slower (AV < 1) than 1 m·s-1 at pretraining tests. Moreover, countermovement jump height and 20-m running sprint time were measured. RESULTS A significant time effect was found for all variables analyzed (P < .05), except for 20-m running sprint time. Significant group × time interactions were observed for 1RM, AV > 1, and AV (P < .05). After training, all groups attained significant strength gains on 1RM, AV, AV > 1, and AV < 1 (P < .001-.01). LP and RP groups improved their countermovement jump height (P < .01), but no significant changes were observed for UP and CP. No significant improvements were achieved in 20-m running sprint time for any groups. CONCLUSIONS These different programming models are all suitable for improving physical performance. LP and RP induce similar or greater gains in physical performance than UP and CP.
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Affiliation(s)
- Javier Riscart-López
- Faculty of Sport Sciences, Universidad Pablo de Olavide, Seville, Spain
- Department of Physical Education, Faculty of Education Sciences, University of Cádiz, Puerto Real, Spain
| | - Juan Sánchez-Valdepeñas
- Faculty of Sport Sciences, Universidad Pablo de Olavide, Seville, Spain
- Physical Performance and Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - Raúl Mora-Vela
- Physical Performance and Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - Javier Caro-Ávalos
- Physical Performance and Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - Lidia Sánchez-González
- Physical Performance and Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - Miguel Sánchez-Moreno
- Physical Performance and Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
- Department of Physical Education and Sports, University of Seville, Seville, Spain
| | - Juan Antonio León-Prados
- Faculty of Sport Sciences, Universidad Pablo de Olavide, Seville, Spain
- Physical Performance and Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - Fernando Pareja-Blanco
- Faculty of Sport Sciences, Universidad Pablo de Olavide, Seville, Spain
- Physical Performance and Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
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Zabaloy S, Freitas TT, Carlos-Vivas J, Giráldez JC, Loturco I, Pareja-Blanco F, Gálvez González J, Alcaraz PE. Estimation of maximum sprinting speed with timing gates: greater accuracy of 5-m split times compared to 10-m splits. Sports Biomech 2024; 23:262-272. [PMID: 33428549 DOI: 10.1080/14763141.2020.1838603] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 10/13/2020] [Indexed: 10/22/2022]
Abstract
This study assessed the validity of 5-m (TG5) and 10-m (TG10) split times measured with timing gates to estimate maximum sprint speed (MSS) against a criterion measure radar gun (RG) during the maximum velocity phase of a 30-m sprint. Nineteen amateur rugby players performed two 30-m sprints. The timing gates were placed at the starting line and at 5-, 10-, 20-, 25- and 30-m. In addition, a RG was used to measure instantaneous velocity. Both trials per participant were used selected as references. MSS obtained from TG10, TG5 and RG showed high intraclass correlation coefficients (0.971-0.978), low coefficients of variation (1.14-1.70%) and smallest detectable changes (<0.02 m/s). Pairwise comparison revealed differences (p = 0.002) in MSS when comparing TG10 to RG, but not TG5 and RG (p = 0.957). Almost perfect correlations were found between RG, TG5 and TG10 (r > 0.926, p < 0.001). In conclusion, MSS obtained from TG5, TG10 and RG presented good intra-session reliability. However, practitioners should be aware that substantial differences exist between TG10 and RG. For the assessment of MSS in team-sport athletes, it is recommended the use of TG5 for more accurate estimations when a gold standard criterion is not available.
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Affiliation(s)
- Santiago Zabaloy
- Faculty of Physical Activity and Sports, Universidad of Flores, Buenos Aires, Argentina
- Faculty of Sports Sciences, Pablo de Olavide University, Seville, Spain
| | - Tomás T Freitas
- UCAM Research Center for High Performance Sport, Catholic University of Murcia (UCAM), Murcia, Spain
- Nucleus of High Performance in Sport (NAR), São Paulo, Brazil
| | - Jorge Carlos-Vivas
- UCAM Research Center for High Performance Sport, Catholic University of Murcia (UCAM), Murcia, Spain
| | - Julián C Giráldez
- Faculty of Physical Activity and Sports, Universidad of Flores, Buenos Aires, Argentina
| | - Irineu Loturco
- Nucleus of High Performance in Sport (NAR), São Paulo, Brazil
- Department of Human Movement Sciences, Federal University of Sao Paulo, Sao Paulo, Brazil
- University of South Wales, Pontypridd, UK
| | - Fernando Pareja-Blanco
- Faculty of Sports Sciences, Pablo de Olavide University, Seville, Spain
- Physical Performance & Athletic Research Center, Pablo de Olavide University, Seville, Spain
| | | | - Pedro E Alcaraz
- UCAM Research Center for High Performance Sport, Catholic University of Murcia (UCAM), Murcia, Spain
- Faculty of Sport Sciences, Catholic University of Murcia (UCAM), Murcia, Spain
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Cornejo-Daza PJ, Sánchez-Valdepeñas J, Rodiles-Guerrero L, Páez-Maldonado JA, Ara I, León-Prados JA, Alegre LM, Pareja-Blanco F, Alcazar J. Vastus Lateralis Muscle Size Is Differently Associated With the Different Regions of the Squat Force-Velocity and Load-Velocity Relationships, Rate of Force Development, and Physical Performance Young Men. J Strength Cond Res 2024; 38:450-458. [PMID: 38231131 DOI: 10.1519/jsc.0000000000004654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
ABSTRACT Cornejo-Daza, PJ, Sánchez-Valdepeñas, J, Rodiles-Guerrero, L, Páez-Maldonado, JA, Ara, I, León-Prados, JA, Alegre, LM, Pareja-Blanco, F, and Alcazar, J. Vastus lateralis muscle size is differently associated with the different regions of the squat force-velocity and load-velocity relationships, rate of force development, and physical performance young men. J Strength Cond Res 38(3): 450-458, 2024-The influence that regional muscle size and muscle volume may have on different portions of the force-velocity (F-V) and load-velocity (L-V) relationships, explosive force, and muscle function of the lower limbs is poorly understood. This study assessed the association of muscle size with the F-V and L-V relationships, rate of force development (RFD) and maximal isometric force in the squat exercise, and vertical jump performance via countermovement jump (CMJ) height. Forty-nine resistance-trained young men (22.7 ± 3.3 years old) participated in the study. Anatomical cross-sectional area (ACSA) of the vastus lateralis (VLA) muscle was measured using the extended field of view mode in an ultrasound device at 3 different femur lengths (40% [distal], 57.5% [medial], and 75% [proximal]), and muscle volume was estimated considering the VLA muscle insertion points previously published and validated in this study. There were significant associations between all muscle size measures (except distal ACSA) and (a) forces and loads yielded at velocities ranging from 0 to 1.5 m·s -1 ( r = 0.36-0.74, p < 0.05), (b) velocities exerted at forces and loads ranging between 750-2,000 N and 75-200 kg, respectively ( r = 0.31-0.69, p < 0.05), and (c) RFD at 200 and 400 milliseconds ( r = 0.35-0.64, p < 0.05). Proximal and distal ACSA and muscle volume were significantly associated with CMJ height ( r = 0.32-0.51, p < 0.05). Vastus lateralis muscle size exhibited a greater influence on performance at higher forces or loads and lower velocities and late phases of explosive muscle actions. Additionally, proximal ACSA and muscle volume showed the highest correlation with the muscle function measures.
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Affiliation(s)
- Pedro J Cornejo-Daza
- Department of Sports and Computer Sciences, Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
- Department of Sports and Computer Sciences, Faculty of Sport Sciences, Universidad Pablo de Olavide, Seville, Spain
| | - Juan Sánchez-Valdepeñas
- Department of Sports and Computer Sciences, Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
- Department of Sports and Computer Sciences, Faculty of Sport Sciences, Universidad Pablo de Olavide, Seville, Spain
| | - Luis Rodiles-Guerrero
- Department of Sports and Computer Sciences, Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
- Faculty of Education, Department of Human Movement and Sport Performance, Universidad de Sevilla, Seville, Spain
| | - José A Páez-Maldonado
- Department of Sports and Computer Sciences, Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
- Faculty of Sport Sciences, University of Seville, Osuna, Spain
| | - Ignacio Ara
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Junta de Comunidades de Castilla-La Mancha (JCCM), Spain
- GENUD Toledo Research Group, Faculty of Sports Sciences, Universidad de Castilla-La Mancha, Toledo, Spain; and
- CIBER on Frailty and Healthy Aging (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
| | - Juan A León-Prados
- Department of Sports and Computer Sciences, Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
- Department of Sports and Computer Sciences, Faculty of Sport Sciences, Universidad Pablo de Olavide, Seville, Spain
| | - Luis M Alegre
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Junta de Comunidades de Castilla-La Mancha (JCCM), Spain
- GENUD Toledo Research Group, Faculty of Sports Sciences, Universidad de Castilla-La Mancha, Toledo, Spain; and
- CIBER on Frailty and Healthy Aging (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
| | - Fernando Pareja-Blanco
- Department of Sports and Computer Sciences, Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
- Department of Sports and Computer Sciences, Faculty of Sport Sciences, Universidad Pablo de Olavide, Seville, Spain
| | - Julian Alcazar
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Junta de Comunidades de Castilla-La Mancha (JCCM), Spain
- GENUD Toledo Research Group, Faculty of Sports Sciences, Universidad de Castilla-La Mancha, Toledo, Spain; and
- CIBER on Frailty and Healthy Aging (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
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Valenzuela-Barrero C, Núñez-Sánchez FJ, Loturco I, Pareja-Blanco F. Effects of light- vs. heavy-load squat training on velocity, strength, power, and total mechanical work in recreationally trained men and women. Biol Sport 2024; 41:3-11. [PMID: 38524809 PMCID: PMC10955750 DOI: 10.5114/biolsport.2024.129487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/15/2023] [Accepted: 06/30/2023] [Indexed: 03/26/2024] Open
Abstract
The purpose of this study was to investigate the effects of light and heavy loads in the squat exercise on kinematics and mechanical variables in recreationally trained men and women. Twenty-two men and sixteen women were assigned to 4 groups: 40% and 80% one-repetition maximum (1RM) male (M40 and M80) and female (F40 and F80). Over 6 weeks, participants performed twice a week the full back-squat (SQ) exercise with initially equated relative volume load (Sets*Repetitions/Set*%1RM). All groups performed different amounts of work (p < 0.05), while relative work (work/1RM) only differed between load groups (p < 0.001). There was no significant Time*Sex*Load interaction. Based on the magnitude of effect sizes: M80 achieved small improvements in the SQ maximum isometric force (MIF; ES = 0.43, 95% CI [0.16, 0.81]); small gains in squat estimated 1RM strength were observed in the 80%-1RM groups (M80: 0.42 [0.18, 0.77]; F80: 0.44 [0.26, 0.76]) and the F40 group (0.42 [0.17, 0.81]); all groups made moderate to large gains in the average velocity attained against heavy loads (> 60%1RM; F40: 1.20 [0.52, 2.27]; F80: 2.20 [1.23, 3.93]; M40: 0.85 [0.29, 1.59]; M80: 1.03 [0.55, 1.77]), as well as small to moderate improvements in the average velocity against light loads (< 60%1RM; F40: 0.49[-0.24, 1.68]; F80: 1.10 [0.06, 3.16]; M40: 0.80 [0.41, 1.35]; M80: 0.93 [0.25, 1.84]). Lastly, only the F40 group showed small improvements in countermovement jump (CMJ) height (ES = 0.65 [0.14, 1.37]). In conclusion, light and heavy loads produced similar strength gains in men and women when initially equated by relative volume load, although the standardized mean differences suggest nuances depending on the sample and task.
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Affiliation(s)
- Carlos Valenzuela-Barrero
- Physical Performance and Sports Research Center
- Dept of Sport and Informatics, Universidad Pablo de Olavide, Seville, Spain
| | - F Javier Núñez-Sánchez
- Physical Performance and Sports Research Center
- Dept of Sport and Informatics, Universidad Pablo de Olavide, Seville, Spain
| | - Irineu Loturco
- Nucleus of High Performance in Sport (NAR), São Paulo, Brazil
- Dept of Human Movement Sciences, Federal University of São Paulo, São Paulo, Brazil
- University of South Wales, Pontypridd, Wales, United Kingdom
| | - Fernando Pareja-Blanco
- Physical Performance and Sports Research Center
- Dept of Sport and Informatics, Universidad Pablo de Olavide, Seville, Spain
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Reyes-Laredo F, Pareja-Blanco F, López-Lluch G, Rodríguez-Bies E. The Evolution of Physical Performance throughout an Entire Season in Female Football Players. Sports (Basel) 2024; 12:52. [PMID: 38393272 PMCID: PMC10891543 DOI: 10.3390/sports12020052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/30/2024] [Accepted: 02/01/2024] [Indexed: 02/25/2024] Open
Abstract
Research on the evolution of performance throughout a season in team sports is scarce and mainly focused on men's teams. Our aim in this study was to examine the seasonal variations in relevant indices of physical performance in female football players. Twenty-seven female football players were assessed at week 2 of the season (preseason, PS), week 7 (end of preseason, EP), week 24 (half-season, HS), and week 38 (end of season, ES). Similar to the most common used conditioning tests in football, testing sessions consisted of (1) vertical countermovement jump (CMJ); (2) 20 m running sprint (T20); (3) 25 m side-step cutting maneuver test (V-CUT); and (4) progressive loading test in the full-squat exercise (V1-LOAD). Participants followed their normal football training procedure, which consisted of three weekly training sessions and an official match, without any type of intervention. No significant time effects were observed for CMJ height (p = 0.29) and T20 (p = 0.11) throughout the season. However, significant time effects were found for V-CUT (p = 0.004) and V1-LOAD (p = 0.001). V-CUT performance significantly improved from HS to ES (p = 0.001). Significant increases were observed for V1-LOAD throughout the season: PS-HS (p = 0.009); PS-ES (p < 0.001); EP-ES (p < 0.001); and HS-ES (p = 0.009). These findings suggest that, over the course of the season, female football players experience an enhancement in muscle strength and change of direction ability. However, no discernible improvements were noted in sprinting and jumping capabilities during the same period.
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Affiliation(s)
- Francisco Reyes-Laredo
- Department of Physiology, Anatomy and Cell Biology, Andalusian Centre of Developmental Biology, Universidad Pablo de Olavide, 41013 Seville, Spain; (F.R.-L.); (G.L.-L.)
- Physical Performance & Sports Research Center, (CIRFD), Universidad Pablo de Olavide, 41013 Seville, Spain;
| | - Fernando Pareja-Blanco
- Physical Performance & Sports Research Center, (CIRFD), Universidad Pablo de Olavide, 41013 Seville, Spain;
- Department of Sport and Computer Sciences, Faculty of Sport Sciences, Universidad Pablo de Olavide, 41013 Seville, Spain
| | - Guillermo López-Lluch
- Department of Physiology, Anatomy and Cell Biology, Andalusian Centre of Developmental Biology, Universidad Pablo de Olavide, 41013 Seville, Spain; (F.R.-L.); (G.L.-L.)
- Physical Performance & Sports Research Center, (CIRFD), Universidad Pablo de Olavide, 41013 Seville, Spain;
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER, U729), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Elisabet Rodríguez-Bies
- Physical Performance & Sports Research Center, (CIRFD), Universidad Pablo de Olavide, 41013 Seville, Spain;
- Department of Sport and Computer Sciences, Faculty of Sport Sciences, Universidad Pablo de Olavide, 41013 Seville, Spain
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Cornejo-Daza PJ, Villalba-Fernández A, González-Badillo JJ, Pareja-Blanco F. Time Course of Recovery From Different Velocity Loss Thresholds and Set Configurations During Full-Squat Training. J Strength Cond Res 2024; 38:221-227. [PMID: 37972985 DOI: 10.1519/jsc.0000000000004623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
ABSTRACT Cornejo-Daza, PJ, Villalba-Fernández, A, González-Badillo, JJ, and Pareja-Blanco, F. Time course of recovery from different velocity loss thresholds and set configurations during full-squat training. J Strength Cond Res 38(2): 221-227, 2024-The aims of the research were to examine the effects of (a) velocity loss (VL) thresholds and (b) set configuration, traditional or cluster, on time-course recovery. A randomized cross-over research design was conducted, in which 15 resistance-trained men performed 4 protocols consisting of 3 sets of 70% 1RM in full squat (SQ), differing in the VL incurred during the set assessed with a linear velocity transducer: (a) 20% (70-20), (b) 30% (70-30), (c) 40% (70-40), and in the set configuration (d) 20% of VL using a cluster methodology (70-CLU). Movement velocity against the load that elicited a 1 m·s -1 velocity at baseline measurements (V1-load) in SQ, countermovement jump (CMJ) height, and sprint time in 20 m (T20) were assessed at baseline (Pre) and postintervention (Post, 6 hour-Post, 24 hour-Post, and 48 hour-Post). The 70-20 protocol resulted in fewer total repetitions than the other protocols ( p = 0.001), whereas 70-CLU, 70-30, and 70-40 completed similar total repetitions. The 70-30 protocol significantly worsened T20 at 6 hours-Post, CMJ at 48 hours-Post, and V1-load at 6 hours-Post ( p < 0.05). The 70-40 protocol significantly impaired T20 at 6 hours-Post, and CMJ and V1-load at 24 hours-Post ( p < 0.05). No significant performance reductions were observed for 70-20 and 70-CLU at 6 hours-Post, 24 hours-Post, and 48 hours-Post. Protocols with higher VL resulted in more pronounced fatigue and a slower rate of recovery. Cluster sets (70-CLU) resulted in higher volume than protocols with a similar level of fatigue (70-20) and a quicker recovery than protocols with a similar volume (70-30 and 70-40).
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Affiliation(s)
- Pedro Jesús Cornejo-Daza
- Department of Sports and Computers Sciences, Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain; and
- Department of Sports and Computers Sciences, Faculty of Sport Sciences, Universidad Pablo de Olavide, Seville, Spain
| | - Antonio Villalba-Fernández
- Department of Sports and Computers Sciences, Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain; and
| | - Juan José González-Badillo
- Department of Sports and Computers Sciences, Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain; and
| | - Fernando Pareja-Blanco
- Department of Sports and Computers Sciences, Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain; and
- Department of Sports and Computers Sciences, Faculty of Sport Sciences, Universidad Pablo de Olavide, Seville, Spain
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Martínez-Rubio C, Baena-Raya A, Díez-Fernández DM, Rodríguez-Pérez MA, Pareja-Blanco F. Examining Unilateral and Bilateral Exercises through the Load-velocity Relationship. Int J Sports Med 2024; 45:41-47. [PMID: 37557918 DOI: 10.1055/a-2151-0661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
This study aimed to examine the load-velocity (L-V) relationship in the bench-press (BP) and leg-press (LP) exercises performed unilaterally, and compared this unilateral L-V relationship with the bilateral variants. Nineteen men (age=23.5±2.1 years) completed two incremental tests in BP and LP, performed bilaterally and unilaterally, across two sessions with a 48-hour rest period. We found a close relationship between medium propulsive velocity (MPV) and %1RM in unilateral BP (R2 =0.97, SEE=0.06 m·s-1) and LP (R2=0.96, SEE=0.06 m·s-1). No significant differences were observed between the preferred and non-preferred sides in the L-V relationship for either exercise. Additionally, higher velocities were achieved in unilateral exercises compared to bilateral exercises, particularly with light and moderate loads (30-70%1RM) in BP (p<0.05) and with light loads (30-45%1RM) in LP (p<0.05). Close L-V relationships were observed in unilateral exercises, without differences in the L-V relationships between preferred and non-preferred sides despite the interlimb asymmetries in the absolute strength values. Interestingly, lower velocities were observed at light loads (~30-45% 1RM) for bilateral compared to unilateral exercises, which could be explained by different strength deficits for these exercises.
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Affiliation(s)
- Carlos Martínez-Rubio
- Department of Education, Faculty of Education Sciences, University of Almeria, Almería, Spain
- CERNEP Research Center, SPORT Research Group (CTS1024), Almería, Spain
| | - Andrés Baena-Raya
- Department of Education, Faculty of Education Sciences, University of Almeria, Almería, Spain
- CERNEP Research Center, SPORT Research Group (CTS1024), Almería, Spain
| | - David M Díez-Fernández
- Department of Education, Faculty of Education Sciences, University of Almeria, Almería, Spain
- CERNEP Research Center, SPORT Research Group (CTS1024), Almería, Spain
| | - Manuel Antonio Rodríguez-Pérez
- Department of Education, Faculty of Education Sciences, University of Almeria, Almería, Spain
- CERNEP Research Center, SPORT Research Group (CTS1024), Almería, Spain
| | - Fernando Pareja-Blanco
- Department of Sports and Computers Sciences, Pablo de Olavide University, Sevilla, Spain
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Jiménez-Martínez P, Cornejo-Daza PJ, Sánchez-Valdepeñas J, Asín-Izquierdo I, Cano-Castillo C, Alix-Fages C, Pareja-Blanco F, Colado JC. Effects of different phenylcapsaicin doses on resistance training performance, muscle damage, protein breakdown, metabolic response, ratings of perceived exertion, and recovery: a randomized, triple-blinded, placebo-controlled, crossover trial. J Int Soc Sports Nutr 2023; 20:2204083. [PMID: 37086038 PMCID: PMC10124973 DOI: 10.1080/15502783.2023.2204083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2023] Open
Abstract
BACKGROUND The aim of this study was to explore the effects of a low dose (LD) of 0.625 mg and a high dose (HD) of 2.5 mg of phenylcapsaicin (PC) on full squat (SQ) performance, active muscle (RPE-AM) and overall body (RPE-OB) ratings of perceived exertion, muscle damage, protein breakdown, metabolic response, and 24-h recovery in comparison to placebo (PLA). METHOD Twenty-five resistance-trained males (age = 21.00 ± 2.15 years, SQ 1-repetition maximum [1RM] normalized = 1.66 ± 0.22 kg) were enrolled in this randomized, triple-blinded, placebo-controlled, crossover trial. Participants completed 2 weekly sessions per condition (LD, HD, and PLA). The first session consisted of pre-blood testing of lactate, urea, and aspartate aminotransferases (AST) and 2 SQ repetitions with 60% 1RM followed by the resistance exercise protocol, which consisted of SQ sets of 3 × 8 × 70% 1RM monitoring lifting velocity. RPE-OB and RPE-AM were assessed after each set. After the first session, 2 SQ repetitions with 60% 1RM were performed, and blood lactate and urea posttests were collected. After 24 h, AST posttest and 1 × 2 × 60% 1RM were determined as biochemical and mechanical fatigue outcomes. RESULTS HD reported significant differences for RPE-AM, AST, and SQ performance compared to LD and PLA. Post-hoc analyses revealed that HD attained faster velocities in SQ than LD (p = 0.008). HD induced a lower RPE-AM when compared with LD (p = 0.02) and PLA (p = 0.004). PLA resulted in higher AST concentrations at 24-h post than HD (p = 0.02). No significant differences were observed for the rest of the comparisons. CONCLUSIONS This study suggests that PC may favorably influence SQ performance, RPE-AM, and muscle damage compared to PLA. However, HD exhibited most of the biochemical and mechanical anti-fatigue effects instead of LD.
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Affiliation(s)
- Pablo Jiménez-Martínez
- University of Valencia, Research Group in Prevention and Health in Exercise and Sport (PHES), Valencia, Spain
- R&D Department, Life Pro Nutrition Research Center,INDIEX, Madrid, Spain
- R&D Department, ICEN institute, Madrid, Spain
| | | | | | - Iván Asín-Izquierdo
- Universidad Pablo de Olavide, Physical Performance & Sports Research Center, Sevilla, Spain
- University of Alcalá, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Madrid, Spain
| | - Clara Cano-Castillo
- Universidad Pablo de Olavide, Physical Performance & Sports Research Center, Sevilla, Spain
| | - Carlos Alix-Fages
- University of Valencia, Research Group in Prevention and Health in Exercise and Sport (PHES), Valencia, Spain
- R&D Department, Life Pro Nutrition Research Center,INDIEX, Madrid, Spain
- R&D Department, ICEN institute, Madrid, Spain
- Autonomous University of Madrid, Applied Biomechanics and Sport Technology Research Group, Madrid, Spain
| | - Fernando Pareja-Blanco
- Universidad Pablo de Olavide, Physical Performance & Sports Research Center, Sevilla, Spain
| | - Juan C Colado
- University of Valencia, Research Group in Prevention and Health in Exercise and Sport (PHES), Valencia, Spain
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Alcazar J, Pareja-Blanco F, Ara I, Alegre LM. Comment on: Exploring the Low Force-High Velocity Domain of the Force-Velocity Relationship in Acyclic Lower-Limb Extensions. Sports Med Open 2023; 9:110. [PMID: 38010439 PMCID: PMC10682299 DOI: 10.1186/s40798-023-00648-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 10/11/2023] [Indexed: 11/29/2023]
Affiliation(s)
- Julian Alcazar
- GENUD Toledo Research Group, Faculty of Sports Sciences, Universidad de Castilla-La Mancha, Toledo, Spain.
- CIBER On Frailty and Healthy Ageing (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain.
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Junta de Comunidades de Castilla-La Mancha (JCCM), Castilla-La Mancha, Spain.
| | - Fernando Pareja-Blanco
- Physical Performance and Sports Research Center, Department of Sports and Computer Sciences, Universidad Pablo de Olavide, Seville, Spain
- Faculty of Sports Sciences, Department of Sports and Computer Sciences, Universidad Pablo de Olavide, Seville, Spain
| | - Ignacio Ara
- GENUD Toledo Research Group, Faculty of Sports Sciences, Universidad de Castilla-La Mancha, Toledo, Spain
- CIBER On Frailty and Healthy Ageing (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Junta de Comunidades de Castilla-La Mancha (JCCM), Castilla-La Mancha, Spain
| | - Luis M Alegre
- GENUD Toledo Research Group, Faculty of Sports Sciences, Universidad de Castilla-La Mancha, Toledo, Spain
- CIBER On Frailty and Healthy Ageing (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), Junta de Comunidades de Castilla-La Mancha (JCCM), Castilla-La Mancha, Spain
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11
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Jiménez-Martínez P, Sánchez-Valdepeñas J, Cornejo-Daza PJ, Cano-Castillo C, Asín-Izquierdo I, Alix-Fages C, Pareja-Blanco F, Colado JC. Effects of different phenylcapsaicin doses on neuromuscular activity and mechanical performance in trained male subjects: a randomized, triple-blinded, crossover, placebo-controlled trial. Front Physiol 2023; 14:1215644. [PMID: 37601635 PMCID: PMC10433207 DOI: 10.3389/fphys.2023.1215644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 07/17/2023] [Indexed: 08/22/2023] Open
Abstract
Objective: This study aimed to examine the effects of phenylcapsaicin (PC) supplementation on strength performance and neuromuscular activity in young trained male subjects. Materials and methods: A total of 25 trained subjects [full-squat (SQ) one repetition maximum (1RM) = 125.6 ± 21.0 kg] were enrolled in this randomized, triple-blinded, crossover, placebo-controlled trial. The subjects performed a first session and a post-24 h session for each condition. In the first session, the subjects ingested a high dose of PC (HD, 2.5 mg), a low dose (LD, 0.625 mg), or a placebo (PLA). Their performance in SQ was assessed under a 3% × 8 × 70% 1RM protocol in the first session. Their performances in countermovement jump (CMJ), SQ with 60% 1RM, and isometric squat were measured before and after the SQ protocol in both sessions. The neural activity of the vastus lateralis (VL) and vastus medialis (VM) was recorded via surface electromyography (EMG) and averaged in both sessions. Results: Significant differences between the conditions were reported for lifting velocity, velocity loss, and the 60% load in dynamic SQ (p range = 0.02-0.04). Electrical changes were not identified for any outcome, although neural activity changed across time (p range ≤0.001-0.006). A significant condition × time effect was observed in CMJ compared to PLA (p ≤0.001) and LD (p ≤0.001). Intra-set analyses revealed higher velocities in HD compared to those in LD (p = 0.01) and PLA (p range = 0.004-0.008). Conclusion: Therefore, PC may improve the strength performance and attenuate the mechanical fatigue induced by resistance training in SQ and CMJ exercises.
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Affiliation(s)
- Pablo Jiménez-Martínez
- Research Group in Prevention and Health in Exercise and Sport (PHES), University of Valencia, Valencia, Spain
- Life Pro Nutrition Research Center, INDIEX, Madrid, Spain
- ICEN Institute, Madrid, Spain
| | - Juan Sánchez-Valdepeñas
- Physical Performance and Sports Research Center, Universidad Pablo de Olavide, Sevilla, Spain
| | - Pedro J. Cornejo-Daza
- Physical Performance and Sports Research Center, Universidad Pablo de Olavide, Sevilla, Spain
| | - Clara Cano-Castillo
- Physical Performance and Sports Research Center, Universidad Pablo de Olavide, Sevilla, Spain
| | - Iván Asín-Izquierdo
- Physical Performance and Sports Research Center, Universidad Pablo de Olavide, Sevilla, Spain
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, Madrid, Spain
| | - Carlos Alix-Fages
- Research Group in Prevention and Health in Exercise and Sport (PHES), University of Valencia, Valencia, Spain
- Life Pro Nutrition Research Center, INDIEX, Madrid, Spain
- ICEN Institute, Madrid, Spain
- Applied Biomechanics and Sport Technology Research Group, Autonomous University of Madrid, Madrid, Spain
| | - Fernando Pareja-Blanco
- Physical Performance and Sports Research Center, Universidad Pablo de Olavide, Sevilla, Spain
| | - Juan C. Colado
- Research Group in Prevention and Health in Exercise and Sport (PHES), University of Valencia, Valencia, Spain
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Loturco I, McGuigan MR, Freitas TT, Bishop C, Zabaloy S, Mercer VP, Moura TBMA, Arruda AFS, Ramos MS, Pereira LA, Pareja-Blanco F. Half-Squat and Jump Squat Exercises Performed Across a Range of Loads: Differences in Mechanical Outputs and Strength Deficits. J Strength Cond Res 2022; 37:1052-1056. [PMID: 36730542 DOI: 10.1519/jsc.0000000000004382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
ABSTRACT Loturco, I, McGuigan, MR, Freitas, TT, Bishop, C, Zabaloy, S, Mercer, VP, Moura, TBMA, Arruda, AFS, Ramos, MS, Pereira, LA, and Pareja-Blanco, F. Half-squat and jump squat exercises performed across a range of loads: differences in mechanical outputs and strength deficits. J Strength Cond Res XX(X): 000-000, 2022-The aim of this study was to compare the peak force (PF), peak power (PP), and peak velocity (PV) outputs produced during half-squat (HS) and jump squat (JS) exercises executed at 20, 40, 60, and 80% of 1 repetition maximum (1RM) in the HS (HS 1RM) and to compute and compare the strength deficit (SDef) achieved in these exercises across these loads. Twenty-four national rugby union players (age: 25.7 ± 3.6 years) performed HS 1RM and a progressive loading test in the HS and JS exercises. The PF, PP, and PV values were obtained in all loads for both exercises, and the SDef was calculated as the percentage difference between the PF at distinct relative intensities and the PF at HS 1RM. The differences in HS and JS variables were determined using an analysis of variance with repeated measures. Higher PF, PP, and PV outputs were generated in the JS in comparison with the HS exercise (p < 0.05); moreover, the SDef magnitudes were significantly lower in the JS (p < 0.01), for all loading conditions. Importantly, the differences in SDef, and as a consequence, PF, PP, and PV decreased progressively with increasing load. Overall, the loaded JS exhibited increased levels of PF, PP, and PV and reduced levels of SDef when compared to the traditional HS performed across a range of loads. The JS is indicated to reduce the SDef and improve the athletes' ability to apply force at higher velocities. Nevertheless, with heavier loads (i.e., ≥80% HS 1RM), its potential advantages and effectiveness may be seriously compromised.
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Affiliation(s)
- Irineu Loturco
- NAR-Nucleus of High Performance in Sport, São Paulo, Brazil.,Department of Human Movement Sciences, Federal University of São Paulo, São Paulo, Brazil.,University of South Wales, Pontypridd, Wales, United Kingdom
| | - Michael R McGuigan
- Sports Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, Auckland, New Zealand.,School of Medical and Health Sciences, Edith Cowan University, Perth, Australia
| | - Tomás T Freitas
- NAR-Nucleus of High Performance in Sport, São Paulo, Brazil.,Department of Human Movement Sciences, Federal University of São Paulo, São Paulo, Brazil.,UCAM Research Center for High Performance Sport, Catholic University of Murcia (UCAM), Murcia, Spain.,Faculty of Sport Sciences, Catholic University of Murcia (UCAM), Murcia, Spain
| | - Chris Bishop
- Faculty of Science and Technology, London Sports Institute, Middlesex University, London, United Kingdom
| | - Santiago Zabaloy
- Faculty of Physical Activity and Sports, University of Flores, Buenos Aires, Argentina.,Physical Performance & Sports Research Center, Pablo de Olavide University, Seville, Spain
| | | | - Túlio B M A Moura
- NAR-Nucleus of High Performance in Sport, São Paulo, Brazil.,Laboratory of Applied Biomechanics, Sport Sciences Department, State University of Londrina, Londrina, Brazil; and
| | | | | | - Lucas A Pereira
- NAR-Nucleus of High Performance in Sport, São Paulo, Brazil.,Department of Human Movement Sciences, Federal University of São Paulo, São Paulo, Brazil
| | - Fernando Pareja-Blanco
- Physical Performance & Sports Research Center, Pablo de Olavide University, Seville, Spain
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13
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Walker S, Häkkinen K, Virtanen R, Mane S, Bachero-Mena B, Pareja-Blanco F. Acute neuromuscular and hormonal responses to 20% vs 40% velocity-loss in males and females before and after 8 weeks of velocity-loss resistance training. Exp Physiol 2022; 107:1046-1060. [PMID: 35930559 PMCID: PMC9542169 DOI: 10.1113/ep090371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Accepted: 07/29/2022] [Indexed: 11/08/2022]
Abstract
NEW FINDINGS What is the central question of this study? Do males and females differ in fatiguability during dynamic loadings, and what are the acute neuromuscular and hormonal responses to 20% versus 40% velocity-loss resistance loadings? How does an 8-week velocity-loss resistance training period modify acute neuromuscular and hormonal responses in males and females? What is the main finding and its importance? Utilizing resistance training methods that regulate the within-set fatigue limit, males appeared to be more susceptible to fatigue than females before the training period. This between-sex difference was diminished after training. The predominant mechanisms of fatigue from 20% and 40% velocity-based resistance training appears to be within the musculature. ABSTRACT Scientific examination of velocity-based resistance training (VBRT) has increased recently, but how males and females respond to different VBRT protocols or how these acute responses are modified after a period of training is unknown. Habitually resistance-trained males and females followed either a 20% or 40% velocity-loss program for 8 weeks. Acute squat loading tests (5 sets, 70% 1-RM load, 3 minutes rest) were performed before and after the training period. Tests of maximum neuromuscular performance and blood sampling were conducted prior to, within 10 minutes of completion (POST) and 24 hours after each acute loading test. Testing included countermovement jump, resting femoral nerve electrical stimulation, and bilateral isometric leg press. Blood samples were analysed for whole-blood lactate, serum testosterone, cortisol, growth hormone and creatine kinase concentrations. Countermovement jump height, maximum isometric bilateral leg press force, and force from 10 Hz doublet decreased in all groups at POST after 20% and 40% velocity-loss. Only males showed reduced force from 100 Hz doublet and voluntary force over 100 ms at POST before training. 40% velocity-loss led to increased blood lactate and growth hormone responses before training in both males and females. After training, more systematic and equivalent responses in force over 100 ms, force from 100 Hz doublet and blood lactate were observed regardless of sex/VBRT protocol. Overall, acute responses were greater from 40% VBRT and males were more susceptible to acute loss in force production capacity before the training period. These VBRT protocol- and sex-related differences were diminished after training. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Simon Walker
- NeuroMuscular Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Finland
| | - Keijo Häkkinen
- NeuroMuscular Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Finland
| | - Roosa Virtanen
- NeuroMuscular Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Finland
| | - Shashank Mane
- NeuroMuscular Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Finland
| | - Beatriz Bachero-Mena
- Department of Human Movement and Sports Performance, University of Seville, Spain
| | - Fernando Pareja-Blanco
- Physical Performance and Sports Research Center, Department of Sports and Computer Sciences, Universidad Pablo de Olavide, Seville, Spain
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14
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Alcazar J, Pareja-Blanco F, Rodriguez-Lopez C, Gutierrez-Reguero H, Sanchez-Valdepeñas J, Cornejo-Daza PJ, Ara I, Alegre LM. A novel equation that incorporates the linear and hyperbolic nature of the force-velocity relationship in lower and upper limb exercises. Eur J Appl Physiol 2022; 122:2305-2313. [PMID: 35864344 DOI: 10.1007/s00421-022-05006-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 06/29/2022] [Indexed: 11/27/2022]
Abstract
The purpose of this study is to provide a force-velocity (F-V) equation that combines a linear and a hyperbolic region, and to compare its derived results to those obtained from linear equations. A total of 10 cross-training athletes and 14 recreationally resistance-trained young men were assessed in the unilateral leg press (LP) and bilateral bench press (BP) exercises, respectively. F-V data were recorded using a force plate and a linear encoder. Estimated maximum isometric force (F0), maximum muscle power (Pmax), and maximum unloaded velocity (V0) were calculated using a hybrid (linear and hyperbolic) equation and three different linear equations: one derived from the hybrid equation (linearhyb), one applied to data from 0 to 100% of F0 (linear0-100), and one applied to data from 45 to 100% of F0 (linear45-100). The hybrid equation presented the best fit to the recorded data (R2 = 0.996 and 0.998). Compared to the results derived from the hybrid equation in the LP, significant differences were observed in F0 derived from linear0-100; V0 derived from linearhyb, linear0-100 and linear45-100; and Pmax derived from linearhyb and linear45-100 (all p < 0.05). For the BP, compared to the hybrid equation, significant differences were found in F0 derived from linear0-100; and V0 and Pmax derived from linearhyb, linear0-100 and linear45-100 (all p < 0.05). An F-V equation combining a linear and a hyperbolic region showed to fit adequately recorded F-V data from ~ 20 to 100% of F0, and overcame the limitations shown by linear equations while providing relevant results.
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Affiliation(s)
- Julian Alcazar
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, Avda. Carlos III, S/N, 45071, Toledo, Spain.,CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain
| | - Fernando Pareja-Blanco
- Physical Performance and Athletic Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - Carlos Rodriguez-Lopez
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, Avda. Carlos III, S/N, 45071, Toledo, Spain.,CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain
| | - Hector Gutierrez-Reguero
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, Avda. Carlos III, S/N, 45071, Toledo, Spain.,CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain
| | - Juan Sanchez-Valdepeñas
- Physical Performance and Athletic Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - Pedro J Cornejo-Daza
- Physical Performance and Athletic Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - Ignacio Ara
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, Avda. Carlos III, S/N, 45071, Toledo, Spain.,CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain
| | - Luis M Alegre
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, Avda. Carlos III, S/N, 45071, Toledo, Spain. .,CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain.
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15
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Zabaloy S, Freitas TT, Pareja-Blanco F, Alcaraz PE, Loturco I. Narrative Review on the Use of Sled Training to Improve Sprint Performance in Team Sport Athletes. Strength Cond J 2022. [DOI: 10.1519/ssc.0000000000000730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Sánchez-Malia J, Rodiles-Guerrero L, Pareja-Blanco F, Ortega-Becerra M. Determinant factors for specific throwing and physical performance in beach handball. Sci Sports 2022. [DOI: 10.1016/j.scispo.2021.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Rissanen J, Walker S, Pareja-Blanco F, Häkkinen K. Velocity-based resistance training: do women need greater velocity loss to maximize adaptations? Eur J Appl Physiol 2022; 122:1269-1280. [PMID: 35258681 PMCID: PMC9012837 DOI: 10.1007/s00421-022-04925-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 02/19/2022] [Indexed: 11/26/2022]
Abstract
Purpose Men and women typically display different neuromuscular characteristics, force–velocity relationships, and differing strength deficit (upper vs. lower body). Thus, it is not clear how previous recommendations for training with velocity-loss resistance training based on data in men will apply to women. This study examined the inter-sex differences in neuromuscular adaptations using 20% and 40% velocity-loss protocols in back squat and bench press exercises. Methods The present study employed an 8-week intervention (2 × week) comparing 20% vs. 40% velocity-loss resistance training in the back squat and bench press exercises in young men and women (~ 26 years). Maximum strength (1-RM) and submaximal-load mean propulsive velocity (MPV) for low- and high-velocity lifts in squat and bench press, countermovement jump and vastus lateralis cross-sectional area were measured at pre-, mid-, and post-training. Surface EMG of quadriceps measured muscle activity during performance tests. Results All groups increased 1-RM strength in squat and bench press exercises, as well as MPV using submaximal loads and countermovement jump height (P < 0.05). No statistically significant between-group differences were observed, but higher magnitudes following 40% velocity loss in 1-RM (g = 0.60) and in low- (g = 1.42) and high-velocity (g = 0.98) lifts occurred in women. Training-induced improvements were accompanied by increases in surface EMG amplitude and vastus lateralis cross-sectional area. Conclusion Similar increases in strength and power performance were observed in men and women over 8 weeks of velocity-based resistance training. However, some results suggest that strength and power gains favor using 40% rather than 20% velocity loss in women.
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Affiliation(s)
- J Rissanen
- NeuroMuscular Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Room VIV225, 40014, Jyväskylä, Finland
| | - S Walker
- NeuroMuscular Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Room VIV225, 40014, Jyväskylä, Finland.
| | - F Pareja-Blanco
- Department of Sports and Computer Sciences, Physical Performance and Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - K Häkkinen
- NeuroMuscular Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Room VIV225, 40014, Jyväskylä, Finland
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18
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Kolind MI, Gam S, Phillip JG, Pareja-Blanco F, Olsen HB, Gao Y, Søgaard K, Nielsen JL. Effects of low load exercise with and without blood-flow restriction on microvascular oxygenation, muscle excitability and perceived pain. Eur J Sport Sci 2022; 23:542-551. [PMID: 35125067 DOI: 10.1080/17461391.2022.2039781] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This paper aimed to examine the acute effect of low-load (LL) exercise with blood-flow restriction (LL-BFR) on microvascular oxygenation and muscle excitability of the vastus medialis (VM) and vastus lateralis (VL) muscles during a single bout of unilateral knee extension exercise performed to task failure. Seventeen healthy recreationally resistance-trained males were enrolled in a within-group randomized cross-over study design. Participants performed one set of unilateral knee extensions at 20% of one-repetition maximum (1RM) to task failure, using a LL-BFR or LL free-flow (LL-FF) protocol in a randomized order on separate days. Changes in microvascular oxygenation and muscle excitability in VL and VM were assessed using near-infrared spectroscopy (NIRS) and surface electromyography (sEMG), respectively. Pain measures were collected using the visual analog scale (VAS) before and following set completion. Within- and between- protocol comparisons were performed at multiple time points of set completion for each muscle. During LL-BFR, participants performed 43% fewer repetitions and reported feeling more pain compared to LL-FF (p<0.05). Normalized to time to task failure, LL-BFR and LL-FF generally demonstrated similar progression in microvascular oxygenation and muscle excitability during exercise to task failure. The present results demonstrate that LL-BFR accelerates time to task failure, compared with LL-FF, resulting in a lower dose of mechanical work to elicit similar levels of oxygenation, blood-pooling, and muscle excitability. LL-BFR may be preferable to LL-FF in clinical settings where high workloads are contraindicated, although increased pain experienced during BFR may limit its application.HighlightsCompared to free flow (FF), neuromuscular fatigue mechanisms are accelerated during blood flow restricted (BFR) training. This can be observed as changes in microvascular oxygenation and muscle excitability occurring at a ∼43% faster mean rate during BFR compared to FF.BFR exercise seems to elicit the same level of neuromuscular fatigue as FF training within a shorter timeframe. This reduces total joint load and may be especially helpful in cases where high training volumes may be contraindicated (e.g. recovering from a sports injury or orthopedic surgery).
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Affiliation(s)
- Mikkel I. Kolind
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Campus vej 55, 5230 Odense, Denmark
| | - Søren Gam
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Campus vej 55, 5230 Odense, Denmark
| | - Jeppe G. Phillip
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Campus vej 55, 5230 Odense, Denmark
| | - Fernando Pareja-Blanco
- Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Ctra. de Utrera, 1, 41013 Sevilla, Spain
| | - Henrik B. Olsen
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Campus vej 55, 5230 Odense, Denmark
| | - Ying Gao
- Department of Sports Science, College of Education, Zhejiang University, 310028 Hangzhou, China
- Faculty of Sport and Health Sciences, University of Jyväskylä, Seminaarinkatu 15, 40014 Jyväskylä, Finland
| | - Karen Søgaard
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Campus vej 55, 5230 Odense, Denmark
- Department of Clinical Research, University of Southern Denmark, Campus vej 55, 5230 Odense, Denmark
| | - Jakob L. Nielsen
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Campus vej 55, 5230 Odense, Denmark
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Pareja-Blanco F, Asián-Clemente JA, Sáez de Villarreal E. Combined Squat and Light-Load Resisted Sprint Training for Improving Athletic Performance. J Strength Cond Res 2021; 35:2457-2463. [PMID: 31022105 DOI: 10.1519/jsc.0000000000003171] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
ABSTRACT Pareja-Blanco, F, Asián-Clemente, JA, and Sáez de Villarreal, E. Combined squat and light-load resisted sprint training for improving athletic performance. J Strength Cond Res 35(9): 2457-2463, 2021-This study aimed to analyze the effects of 5 training methods: squat (SQ), light-load sled towing (LST), heavy-load sled towing (HST), squat combined with LST (SQ + LST), and squat combined with HST (SQ + HST) on physical performance. Ninety-one physically active men were randomly assigned to one of the aforementioned training methods or a control group. Before and after the training period, a battery of tests was completed: 30-m sprint; change of direction (COD); countermovement jump (CMJ) and Abalakov jump (ABK); and estimated 1 repetition maximum (1RM) in squat. Training took place once per week for 8 weeks. SQ trained the squat exercise, HST trained resisted sprints with 80% body mass (BM) load, LST trained resisted sprints with 12.5% BM load, SQ + HST combined squat with 80% BM load resisted sprint, and SQ + LST combined squat with 12.5% BM load resisted sprint. The loads used in squat ranged from 40 to 55% 1RM. After the training program, SQ + LST showed improvements in 0- to 30-, 10- to 20-, and 10- to 30-m sprint times, whereas SQ + HST did not achieve significant enhancements over any sprint time. LST and HST improved over 0-20 and 10-30 m, respectively. SQ showed improvements in 20- to 30-m sprint time. Change of direction and CMJ performance were increased for HST, SQ + HST, and SQ + LST, whereas only SQ + LST improved ABK height. SQ, HST, SQ + HST, and SQ + LST increased 1RM. Squat training with low/moderate loads combined with LST (12.5% BM) may be an effective stimulus for improving leg strength, jump ability, COD, and sprint performance.
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Affiliation(s)
- Fernando Pareja-Blanco
- Physical Performance & Athletic Research Center, Pablo de Olavide University, Seville, Spain
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Bachero-Mena B, Pareja-Blanco F, González-Badillo JJ. Effects of Resistance Training on Physical Performance in High-Level 800-Meter Athletes: A Comparison Between High-Speed Resistance Training and Circuit Training. J Strength Cond Res 2021; 35:1905-1915. [PMID: 30741859 DOI: 10.1519/jsc.0000000000003066] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
ABSTRACT Bachero-Mena, B, Pareja-Blanco, F, and González-Badillo, JJ. Effects of resistance training on physical performance in high-level 800-meter athletes: a comparison between high-speed resistance training and circuit training. J Strength Cond Res 35(7): 1905-1915, 2021-This study compared the effects of 2 resistance training programs during 25 weeks on physical performance and hormonal response in high-level 800 m athletes. Thirteen male athletes (800-m personal best: 1:43-1:58 minutes:ss) were divided into 2 groups: high-speed resistance training group (RTG) (n = 6) and circuit training group (CTG) (n = 7). Three tests (T1, T2, and T3) including sprint and 800 m running, strength exercises, and blood hormones samples were performed. Both groups showed improvements in 800 m performance (RTG: likely positive, 80/20/0%; CTG: very likely positive, 98/2/0%); however, RTG showed an additional improvement in 200 m (likely positive, 85/15/0%), countermovement jump (CMJ) (very likely positive, 98/2/0%), and squat (likely positive, 91/9/0%), whereas CTG reached likely positive (88/11/1%) effects in CMJ and unclear/possibly negative effects in the rest of the strength variables analyzed. Concerning hormones, RTG resulted in a likely increase (83/15/3%) in testosterone from T1 to T3, and CTG showed a likely increase (79/17/4%) in cortisol from T2 to T3, remaining the rest of the hormones analyzed unclear. These results suggest that a resistance training characterized by high-speed and low-volume produced better improvements in both strength and running performance than a circuit training, accompanied by little changes in the hormonal response.
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Affiliation(s)
- Beatriz Bachero-Mena
- Physical Performance & Sports Research Center, Pablo de Olavide University, Seville, Spain.,Department of Physical Education and Sport, University of Seville, Seville, Spain; and
| | - Fernando Pareja-Blanco
- Physical Performance & Sports Research Center, Pablo de Olavide University, Seville, Spain.,Department of Sports, Faculty of Sport Sciences, Pablo de Olavide University, Seville, Spain
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Piqueras-Sanchiz F, Cornejo-Daza PJ, Sánchez-Valdepeñas J, Bachero-Mena B, Sánchez-Moreno M, Martín-Rodríguez S, García-García Ó, Pareja-Blanco F. Acute Mechanical, Neuromuscular, and Metabolic Responses to Different Set Configurations in Resistance Training. J Strength Cond Res 2021; 36:2983-2991. [PMID: 34132222 DOI: 10.1519/jsc.0000000000004068] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
ABSTRACT Piqueras-Sanchiz, F, Cornejo-Daza, PJ, Sánchez-Valdepeñas, J, Bachero-Mena, B, Sánchez-Moreno, M, Martín-Rodríguez, S, García-García, Ó, and Pareja-Blanco, F. Acute Mechanical, Neuromuscular, and Metabolic Responses to Different Set Configurations in Resistance Training. J Strength Cond Res XX(X): 000-000, 2021-The aim of this study was to investigate the effect of set configuration on mechanical performance, neuromuscular activity, metabolic response, and muscle contractile properties. Sixteen strength-trained men performed 2 training sessions in the squat exercise consisting of (a) 3 sets of 8 repetitions with 5 minutes rest between sets (3 × 8) and (b) 6 sets of 4 repetitions with 2 minutes rest between sets (6 × 4). Training intensity (75% one repetition maximum), total volume (24 repetitions), total rest (10 minutes), and training density were equalized between protocols. A battery of tests was performed before and after each protocol: (a) tensiomyography (TMG), (b) blood lactate and ammonia concentration, (c) countermovement jump, and (d) maximal voluntary isometric contraction in the squat exercise. Force, velocity, and power output values, along with electromyography data, were recorded for every repetition throughout each protocol. The 6 × 4 protocol resulted in greater mechanical performance (i.e., force, velocity, and power) and lower neuromuscular markers of fatigue (i.e., lower root mean square and higher median frequency) during the exercise compared with 3 × 8, particularly for the last repetitions of each set. The 3 × 8 protocol induced greater lactate and ammonia concentrations, greater reductions in jump height, and greater impairments in TMG-derived velocity of deformation after exercise than 6 × 4. Therefore, implementing lower-repetition sets with shorter and more frequent interset rest intervals attenuates impairments in mechanical performance, especially in the final repetitions of each set. These effects may be mediated by lower neuromuscular alterations, reduced metabolic stress, and better maintained muscle contractile properties.
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Affiliation(s)
- Francisco Piqueras-Sanchiz
- Department of Sports and Computers Sciences, Physical Performance & Sports Research Center, Pablo de Olavide University, Seville, Spain; Department of Sports and Computers Sciences, Faculty of Sport Sciences, Pablo de Olavide University, Seville, Spain; Department of Physical Education and Sports, University of Seville, Seville, Spain; Department of Physical Education, University of the Gran Canarian Palms, The Gran Canarian Palms, Spain; and Laboratory of Sports Performance, Physical Condition and Wellness, Faculty of Education and Sport Sciences, University of Vigo, Pontevedra, Spain
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22
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Riscart-López J, Rendeiro-Pinho G, Mil-Homens P, Soares-daCosta R, Loturco I, Pareja-Blanco F, León-Prados JA. Effects of Four Different Velocity-Based Training Programming Models on Strength Gains and Physical Performance. J Strength Cond Res 2021; 35:596-603. [PMID: 33394894 DOI: 10.1519/jsc.0000000000003934] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
ABSTRACT Riscart-López, J, Rendeiro-Pinho, G, Mil-Homens, P, Costa, RS-d, Loturco, I, Pareja-Blanco, F, and León-Prados, JA. Effects of Four different velocity-based training programming models on strength gains and physical performance. J Strength Cond Res 35(3): 596-603, 2021-The aim of this study was to compare the effects of 4 velocity-based training (VBT) programming models (linear programming [LP], undulating programming [UP], reverse programming [RP], and constant programming [CP]) on the physical performance of moderately strength-trained men. Forty-three young (age: 22.9 ± 4.8 years; body mass [BM]: 71.7 ± 7.6; full squat [SQ] relative strength 1.32 ± 0.29) subjects were randomly assigned to LP (gradually increase training intensity and decrease volume), UP (volume and intensity increase or decrease repeatedly), RP (gradually increases volume and decrease intensity), and CP (maintains constant volume and intensity) groups and followed an 8-week VBT intervention using the SQ exercise and monitoring movement velocity for every repetition. All groups trained with similar relative average intensity (67.5% 1 repetition maximum [1RM]), magnitude of velocity loss within the set (20%), number of sets (3), and interset recoveries (4 minutes) throughout the training program. Pre-training and post-training measurements included predicted SQ (1RM), average velocity attained for all loads common to pre-tests and post-tests (AV), average velocity for those loads that were moved faster (AV > 1) and slower (AV < 1) than 1 m·s-1 at pre-tests, countermovement jump height (CMJ), and 20-m sprint time (T20). No significant group × time interactions were observed for any of the variables analyzed. All groups obtained similar increases (shown in effect size values) in 1RM strength (LP: 0.88; UP: 0.54; RP: 0.62; CP: 0.51), velocity-load-related variables (LP: 0.74-4.15; UP: 0.46-5.04; RP: 0.36-3.71; CP: 0.74-3.23), CMJ height (LP: 0.35; UP: 0.53; RP: 0.49; CP: 0.34), and sprint performance (LP: 0.34; UP: 0.35; RP: 0.32; CP: 0.30). These results suggest that different VBT programming models induced similar physical performance gains in moderately strength-trained subjects.
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Affiliation(s)
- Javier Riscart-López
- Faculty of Sport Sciences, Pablo de Olavid University, Seville, Spain.,Department of Physical Education and Sports, University of Seville, Seville, Spain
| | | | - Pedro Mil-Homens
- Faculty of Human Kinetics, University of Lisbon, Lisbon, Portugal
| | | | - Irineu Loturco
- Nucleus of High Performance in Sport, São Paulo, Brazil.,University of South Wales, Pontypridd, Wales, United Kingdom.,Department of Human Movement Sciences, Federal University of São Paulo, São Paulo, Brazil; and
| | - Fernando Pareja-Blanco
- Faculty of Sport Sciences, Pablo de Olavid University, Seville, Spain.,Physical Performance and Sports Research Center, Pablo de Olavid University, Seville, Spain
| | - Juan A León-Prados
- Faculty of Sport Sciences, Pablo de Olavid University, Seville, Spain.,Physical Performance and Sports Research Center, Pablo de Olavid University, Seville, Spain
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Alix-Fages C, Romero-Arenas S, Calderón-Nadal G, Jerez-Martínez A, Pareja-Blanco F, Colomer-Poveda D, Márquez G, Garcia-Ramos A. Transcranial direct current stimulation and repeated sprint ability: No effect on sprint performance or ratings of perceived exertion. Eur J Sport Sci 2021; 22:569-578. [DOI: 10.1080/17461391.2021.1883124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Carlos Alix-Fages
- Department of Physical Education, Faculty of Sport Sciences and Physical Education, University of A Coruña, A Coruña, Spain
- Department of Physical Education and Sport, Faculty of Sport Sciences, Catholic University of Murcia (UCAM), Murcia, Spain
| | - Salvador Romero-Arenas
- Department of Physical Education and Sport, Faculty of Sport Sciences, Catholic University of Murcia (UCAM), Murcia, Spain
| | - Giancarlo Calderón-Nadal
- Department of Physical Education and Sport, Faculty of Sport Sciences, Catholic University of Murcia (UCAM), Murcia, Spain
| | - Agustín Jerez-Martínez
- Department of Physical Education and Sport, Faculty of Sport Sciences, Catholic University of Murcia (UCAM), Murcia, Spain
| | - Fernando Pareja-Blanco
- Physical Performance & Sports Research Center, Department of Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, Spain
- Faculty of Sport Sciences, Department of Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, Spain
| | - David Colomer-Poveda
- Department of Physical Education and Sport, Faculty of Sport Sciences, Catholic University of Murcia (UCAM), Murcia, Spain
| | - Gonzalo Márquez
- Department of Physical Education, Faculty of Sport Sciences and Physical Education, University of A Coruña, A Coruña, Spain
- Department of Physical Education and Sport, Faculty of Sport Sciences, Catholic University of Murcia (UCAM), Murcia, Spain
| | - Amador Garcia-Ramos
- Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
- Department of Sports Sciences and Physical Conditioning, Faculty of Education, Universidad Católica de la Santísima Concepción, Concepción, Chile
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Pareja-Blanco F, Rodríguez-Rosell D, Aagaard P, Sánchez-Medina L, Ribas-Serna J, Mora-Custodio R, Otero-Esquina C, Yáñez-García JM, González-Badillo JJ. Time Course of Recovery From Resistance Exercise With Different Set Configurations. J Strength Cond Res 2021; 34:2867-2876. [PMID: 30036284 DOI: 10.1519/jsc.0000000000002756] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Pareja-Blanco, F, Rodríguez-Rosell, D, Aagaard, P, Sánchez-Medina, L, Ribas-Serna, J, Mora-Custodio, R, Otero-Esquina, C, Yáñez-García, JM, and González-Badillo, JJ. Time course of recovery from resistance exercise with different set configurations. J Strength Cond Res 34(10): 2867-2876, 2020-This study analyzed the response to 10 resistance exercise protocols differing in the number of repetitions performed in each set (R) with respect to the maximum predicted number (P). Ten males performed 10 protocols (R(P): 6(12), 12(12), 5(10), 10(10), 4(8), 8(8), 3(6), 6(6), 2(4), and 4(4)). Three sets with 5-minute interset rests were performed in each protocol in bench press and squat. Mechanical muscle function (countermovement jump height and velocity against a 1 m·s load, V1-load) and biochemical plasma profile (testosterone, cortisol, growth hormone, prolactin, IGF-1, and creatine kinase) were assessed at several time points from 24-hour pre-exercise to 48-hour post-exercise. Protocols to failure, especially those in which the number of repetitions performed was high, resulted in larger reductions in mechanical muscle function, which remained reduced up to 48-hour post-exercise. Protocols to failure also showed greater increments in plasma growth hormone, IGF-1, prolactin, and creatine kinase concentrations. In conclusion, resistance exercise to failure resulted in greater fatigue accumulation and slower rates of neuromuscular recovery, as well as higher hormonal responses and greater muscle damage, especially when the maximal number of repetitions in the set was high.
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Affiliation(s)
- Fernando Pareja-Blanco
- Physical Performance and Athletic Research Center, Pablo de Olavide University, Seville, Spain.,Francisco Maldonado University School of Osuna, Osuna, Spain
| | - David Rodríguez-Rosell
- Physical Performance and Athletic Research Center, Pablo de Olavide University, Seville, Spain
| | - Per Aagaard
- Department of Sports Science and Clinical Biomechanics, Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Luis Sánchez-Medina
- Studies, Research and Sports Medicine Center, Government of Navarre, Pamplona, Spain
| | - Juan Ribas-Serna
- Medical Physiology and Biophysics Department, University of Seville, Seville, Spain; and
| | - Ricardo Mora-Custodio
- Physical Performance and Athletic Research Center, Pablo de Olavide University, Seville, Spain
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25
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Pareja-Blanco F, Alcazar J, Sánchez-Valdepeñas J, Cornejo-Daza PJ, Piqueras-Sanchiz F, Mora-Vela R, Sánchez-Moreno M, Bachero-Mena B, Ortega-Becerra M, Alegre LM. Velocity Loss as a Critical Variable Determining the Adaptations to Strength Training. Med Sci Sports Exerc 2021; 52:1752-1762. [PMID: 32049887 DOI: 10.1249/mss.0000000000002295] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE This study aimed to compare the effects of four resistance training (RT) programs with different velocity loss (VL) thresholds: 0% (VL0), 10% (VL10), 20% (VL20), and 40% (VL40) on sprint and jump performance, muscle strength, neuromuscular, muscle hypertrophy, and architectural adaptations. METHODS Sixty-four young resistance-trained men were randomly assigned into four groups (VL0, VL10, VL20, and VL40) that differed in the VL allowed in each set. Subjects followed an RT program for 8 wk (two sessions per week) using the full-squat (SQ) exercise, with similar relative intensity (70%-85% 1-repetition maximum), number of sets (3), and interset recovery period (4 min). Before and after the RT program, the following tests were performed: 1) muscle hypertrophy and architecture of the vastus lateralis (VLA), 2) tensiomyography, 3) 20-m running sprint, 4) vertical jump, 5) maximal voluntary isometric contraction in SQ, 6) progressive loading test in SQ, and 7) fatigue test. RESULTS No between-group differences existed for RT-induced gains in sprint, jump, and strength performance despite the differences in the total volume performed by each group. VL20 and VL40 showed significant increases (P < 0.001) in muscle hypertrophy (group-time interaction, P = 0.06). However, only VL40 exhibited a significant slowing (P < 0.001) of the delay time in the VLA muscle (group-time interaction, P = 0.05). Moreover, VL40 showed a significant decrease in the early rate of force development (P = 0.04). CONCLUSIONS Higher VL thresholds (i.e., VL20 and VL40) maximized hypertrophic adaptations, although an excessive VL during the set (i.e., VL40) may also induce negative neuromuscular adaptations. Therefore, moderate VL thresholds should be chosen to maximize strength adaptations and to prevent negative neuromuscular adaptations.
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Affiliation(s)
| | | | - Juan Sánchez-Valdepeñas
- Physical Performance & Sports Research Center, Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, SPAIN
| | - Pedro J Cornejo-Daza
- Physical Performance & Sports Research Center, Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, SPAIN
| | - Francisco Piqueras-Sanchiz
- Physical Performance & Sports Research Center, Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, SPAIN
| | - Raúl Mora-Vela
- Physical Performance & Sports Research Center, Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, SPAIN
| | | | - Beatriz Bachero-Mena
- Department of Physical Education and Sports, University of Seville, Seville, SPAIN
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Ortega-Becerra M, Sánchez-Moreno M, Pareja-Blanco F. Effects of Cluster Set Configuration on Mechanical Performance and Neuromuscular Activity. J Strength Cond Res 2021; 35:310-317. [PMID: 33278270 DOI: 10.1519/jsc.0000000000003907] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
ABSTRACT Ortega-Becerra, M, Sánchez-Moreno, M, and Pareja-Blanco, F. Effects of cluster set configuration on mechanical performance and neuromuscular activity. J Strength Cond Res 35(2): 310-317, 2021-The aim of this study was to compare the effects of different cluster set (CS) configurations on mechanical performance and electromyography (EMG) activity during the bench press (BP) exercise. Fourteen strength-trained men (age 23.0 ± 2.4 years; height 1.76 ± 0.08 m; body mass 78.3 ± 12.2 kg) performed 3 different protocols in the BP exercise consisting of 3 sets of 12 repetitions at 60% of 1 repetition maximum with interset rests of 2 minutes, differing in the set configuration: (a) traditional sets (TRDs), (b) cluster sets of 4 repetitions (CS4), and (c) cluster sets of 2 repetitions (CS2). Intraset rests of 30 seconds were interposed for CS protocols. The mean propulsive values of force, velocity, and power output were measured for every repetition by synchronizing a linear velocity transducer with a force platform. The root mean square (RMS) and median frequency (MDF) for pectoralis major (PM) and triceps brachii (TB) muscles were also recorded for every repetition. Force, velocity, and power values progressively increased as the number of intraset rests increased (TRD < CS4 < CS2). The CS2 protocol exhibited lower RMS-PM than CS4 and TRD for almost all sets. In addition, TRDs showed significantly lower MDF-TB than CS2 for all sets and lower MDF-TB than CS4 during the third set. In conclusion, more frequent intraset rests were beneficial for maintaining mechanical performance, which may be mediated, from a neuromuscular perspective, by lesser increases in EMG amplitude and attenuated reductions in EMG frequency.
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Affiliation(s)
- Manuel Ortega-Becerra
- Physical Performance and Sports Research Center, Pablo de Olavide University, Seville, Spain
- Department of Sports and Computers Sciences, Faculty of Sport Sciences, Pablo de Olavide University, Seville, Spain ; and
| | | | - Fernando Pareja-Blanco
- Physical Performance and Sports Research Center, Pablo de Olavide University, Seville, Spain
- Department of Sports and Computers Sciences, Faculty of Sport Sciences, Pablo de Olavide University, Seville, Spain ; and
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Rodríguez-Rosell D, Sáez de Villarreal E, Mora-Custodio R, Asián-Clemente JA, Bachero-Mena B, Loturco I, Pareja-Blanco F. Effects of Different Loading Conditions During Resisted Sprint Training on Sprint Performance. J Strength Cond Res 2020; 36:2725-2732. [PMID: 33337706 DOI: 10.1519/jsc.0000000000003898] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
ABSTRACT Rodríguez-Rosell, D, Sáez de Villarreal, E, Mora-Custodio, R, Asián-Clemente, JA, Bachero-Mena, B, Loturco, I, and Pareja-Blanco, F. Effects of different loading conditions during resisted sprint training on sprint performance. J Strength Cond Res XX(X): 000-000, 2020-The aim of this study was to compare the effects of 5 loading conditions (0, 20, 40, 60, and 80% of body mass [BM]) during weighted sled sprint training on unresisted and resisted sprint performance and jump ability. Sixty physically active men were randomly assigned into 5 groups according to the overload used during sled sprint training: 0% (G0%, n = 12), 20% (G20%, n = 12), 40% (G40%, n = 12), 60% (G60%, n = 12), and 80% BM (G80%, n = 12). Pretraining and post-training assessments included: countermovement jump (CMJ), 30-m sprint without extra load, and 20-m sprint with 20, 40, 60, and 80% BM. All 5 experimental groups trained once a week for a period of 8 weeks completing the same training program (number of sessions, number of bouts, running distance in each sprint, rest intervals between repetitions, and total running distance), but with different sled loads (0, 20, 40, 60, and 80% BM). There was a significant "time × group" interaction for resisted sprint performance at 80% BM condition, where the G40% group attained improvements in performance and G80% worsened. Moreover, G40% increased performance in unresisted and the rest of loading conditions. In addition, G0% and G60% showed statistically significant increases in unresisted sprint performance. No relevant changes were observed in the other experimental groups. All groups showed significant improvements (p < 0.05-0.001) in CMJ height. Therefore, our findings suggest that resisted sprint training with moderate loads (i.e., 40% BM) may have a positive effect on unresisted and resisted sprint performance.
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Affiliation(s)
- David Rodríguez-Rosell
- Physical Performance and Sports Research Center, Pablo de Olavide University, Seville, Spain; Department of Sport and Informatic, Pablo de Olavide University, Seville, Spain; Department of Physical Education and Sport, Sevilla University, Sevilla, Spain; NAR-Nucleus of High Performance in Sport, São Paulo, Brazil; Department of Human Movement Sciences, Federal University of São Paulo, São Paulo, Brazil; and University of South Wales, Pontypridd, Wales, United Kingdom
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28
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Loturco I, McGuigan MR, Suchomel T, Freitas TT, Rodríguez-Rosell D, Pereira LA, Pareja-Blanco F. Determining the One Repetition Maximum in the Ballistic Bench Press Exercise. J Strength Cond Res 2020; 34:3321-3325. [PMID: 33009350 DOI: 10.1519/jsc.0000000000003845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Loturco, I, McGuigan, MR, Suchomel, T, Freitas, TT, Rodríguez-Rosell, D, Pereira, LA, and Pareja-Blanco, F. Determining the one repetition maximum in the ballistic bench press exercise. J Strength Cond Res 34(12): 3321-3325, 2020-The purpose of this study was to determine the relative load (% of one repetition maximum [1RM]) at which the concentric action becomes entirely propulsive in the bench press (BP) exercise and verify whether this relative load varies between athletes with different strength levels. Twenty-eight professional athletes (Olympic boxers, professional mixed martial arts fighters, and elite rugby players) performed a progressive loading test up to their 1RM in the BP exercise (BP-1RM). Athletes were ordered according to their relative strength values and equally divided into 2 different groups: "low" (≤1.34) and "high" (≥1.38) strength levels. An independent t-test was used to compare the variables between groups. Significance level was set at p < 0.05. No significant differences were observed between the groups for the mean propulsive velocity attained at 1RM and for the maximum load that required braking action during the execution of the traditional BP exercise (effect size = 0.27 and 0.15, respectively; p > 0.05). Our results revealed that at 80% 1RM the concentric action can already be considered as 100% propulsive in the BP exercise. Importantly, this occurrence was independent of strength level. Therefore, this relative strength measure (i.e., 80% BP-1RM) may be used as a reference for the 1RM in the BP throw.
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Affiliation(s)
- Irineu Loturco
- NAR Nucleus of High Performance in Sport, São Paulo, Brazil.,Department of Human Movement Sciences, Federal University of São Paulo, São Paulo, Brazil.,University of South Wales, Pontypridd, Wales, United Kingdom
| | - Michael R McGuigan
- Sports Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, Auckland, New Zealand.,School of Medical and Health Sciences, Edith Cowan University, Perth, Australia
| | - Timothy Suchomel
- Department of Human Movement Sciences, Carroll University, Waukesha, Wisconsin
| | - Tomás T Freitas
- NAR Nucleus of High Performance in Sport, São Paulo, Brazil.,Department of Human Movement Sciences, Federal University of São Paulo, São Paulo, Brazil.,UCAM Research Center for High Performance Sport - Catholic University of Murcia, UCAM, Murcia, Spain
| | - David Rodríguez-Rosell
- Physical Performance and Sports Research Center, Pablo de Olavide University, Seville, Spain; and.,Faculty of Sport Sciences, Department of Sports and Computers Sciences, Pablo de Olavide University, Seville, Spain
| | - Lucas A Pereira
- NAR Nucleus of High Performance in Sport, São Paulo, Brazil.,Department of Human Movement Sciences, Federal University of São Paulo, São Paulo, Brazil
| | - Fernando Pareja-Blanco
- Physical Performance and Sports Research Center, Pablo de Olavide University, Seville, Spain; and.,Faculty of Sport Sciences, Department of Sports and Computers Sciences, Pablo de Olavide University, Seville, Spain
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29
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Martinez-Canton M, Gallego-Selles A, Gelabert-Rebato M, Martin-Rincon M, Pareja-Blanco F, Rodriguez-Rosell D, Morales-Alamo D, Sanchis-Moysi J, Dorado C, Jose Gonzalez-Badillo J, Calbet JAL. Role of CaMKII and sarcolipin in muscle adaptations to strength training with different levels of fatigue in the set. Scand J Med Sci Sports 2020; 31:91-103. [PMID: 32949027 DOI: 10.1111/sms.13828] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 08/05/2020] [Accepted: 08/31/2020] [Indexed: 12/26/2022]
Abstract
Strength training promotes a IIX-to-IIA shift in myosin heavy chain (MHC) composition, likely due to changes in sarcoplasmic [Ca2+ ] which are sensed by CaMKII. Sarcoplasmic [Ca2+ ] is in part regulated by sarcolipin (SLN), a small protein that when overexpressed in rodents stimulates mitochondrial biogenesis and a fast-to-slow fiber type shift. The purpose of this study was to determine whether CaMKII and SLN are involved in muscle phenotype and performance changes elicited by strength training. Twenty-two men followed an 8-week velocity-based resistance training program using the full squat exercise while monitoring repetition velocity. Subjects were randomly assigned to two resistance training programs differing in the repetition velocity loss allowed in each set: 20% (VL20) vs 40% (VL40). Strength training caused muscle hypertrophy, improved 1RM and increased total CaMKII protein expression, particularly of the δD isoform. Phospho-Thr287 -CaMKII δD expression increased only in VL40 (+89%), which experienced greater muscle hypertrophy, and a reduction in MHC-IIX percentage. SLN expression was increased in VL20 (+33%) remaining unaltered in VL40. The changes in phospho-Thr287 -CaMKII δD were positively associated with muscle hypertrophy and the number of repetitions during training, and negatively with the changes in MHC-IIX and SLN. Most OXPHOS proteins remained unchanged, except for NDUFB8 (Complex I), which was reduced after training (-22%) in both groups. The amount of fatigue allowed in each set critically influences muscle CaMKII and SLN responses and determines muscle phenotype changes. With lower intra-set fatigue, the IIX-to-IIA MHC shift is attenuated.
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Affiliation(s)
- Miriam Martinez-Canton
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), Las Palmas de Gran Canaria, Spain
| | - Angel Gallego-Selles
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), Las Palmas de Gran Canaria, Spain
| | - Miriam Gelabert-Rebato
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), Las Palmas de Gran Canaria, Spain
| | - Marcos Martin-Rincon
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), Las Palmas de Gran Canaria, Spain
| | - Fernando Pareja-Blanco
- Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - David Rodriguez-Rosell
- Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - David Morales-Alamo
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), Las Palmas de Gran Canaria, Spain
| | - Joaquin Sanchis-Moysi
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), Las Palmas de Gran Canaria, Spain
| | - Cecilia Dorado
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), Las Palmas de Gran Canaria, Spain
| | | | - Jose A L Calbet
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), Las Palmas de Gran Canaria, Spain.,Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway.,School of Kinesiology, Faculty of Education, The University of British Columbia, Vancouver, BC, Canada
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30
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Benavides-Ubric A, Díez-Fernández DM, Rodríguez-Pérez MA, Ortega-Becerra M, Pareja-Blanco F. Analysis of the Load-Velocity Relationship in Deadlift Exercise. J Sports Sci Med 2020; 19:452-459. [PMID: 32874097 PMCID: PMC7429441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
The aim of this study was to analyze the relationship between movement velocity and relative load (%1RM) in the deadlift exercise. Fifty men (age = 23.8 ± 3.6 years, body mass = 78.2 ± 8.3 kg, height = 1.78 ± 0.06 m) performed a first evaluation (T1) consisting of a one-repetition maximum (1RM) test. Forty-two subjects performed a second evaluation (T2) after 6 weeks. Mean (MV), mean propulsive (MPV) and peak (PV) velocity measures of the concentric phase were analyzed. Load-velocity relationships were studied by fitting first order equations to the data using loads from 30-100% of 1RM. A comprehensive set of statistics for assessing bias and level of agreement to estimate the 1RM value from the different models was used. Stability of these relationships was assessed using the coefficient of variation (CV) and the intraclass correlation coefficient (ICC). General load-velocity equations provided good adjustments (R2 ~; 0.91-0.93), however individual load-velocity regressions provided better adjustments (R2 ~; 0.97). Individual estimations also showed higher agreement and more regular variation than general equations. Moreover, MPV showed smaller bias than the other velocity parameters (MV and PV). The stability analysis of the load-velocity relationships resulted in ICC values higher than 0.82 and CV lower than 3.0%. Monitoring repetition velocity allows estimation of the %1RM in the deadlift exercise. More accurate predictions of relative load can be obtained when using individualized regression equations instead of general equations.
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Affiliation(s)
| | - David M Díez-Fernández
- Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - Manuel A Rodríguez-Pérez
- SPORT Research Group (CTS-1024), CERNEP Research Center, University of Almería, Almería, Spain
- Department of Education, University of Almería, Almería, Spain
| | - Manuel Ortega-Becerra
- Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - Fernando Pareja-Blanco
- Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
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31
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Pareja-Blanco F, Alcazar J, Cornejo-Daza PJ, Sánchez-Valdepeñas J, Rodriguez-Lopez C, Hidalgo-de Mora J, Sánchez-Moreno M, Bachero-Mena B, Alegre LM, Ortega-Becerra M. Effects of velocity loss in the bench press exercise on strength gains, neuromuscular adaptations, and muscle hypertrophy. Scand J Med Sci Sports 2020; 30:2154-2166. [PMID: 32681665 DOI: 10.1111/sms.13775] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 07/04/2020] [Accepted: 07/10/2020] [Indexed: 01/01/2023]
Abstract
OBJECTIVE This study aimed to compare the effects of four velocity-based training (VBT) programs in bench press (BP) between a wide range of velocity loss (VL) thresholds-0% (VL0), 15% (VL15), 25% (VL25), and 50% (VL50)-on strength gains, neuromuscular adaptations, and muscle hypertrophy. METHODS Sixty-four resistance-trained young men were randomly assigned into four groups (VL0, VL15, VL25, and VL50) that differed in the VL allowed in each set. Subjects followed a VBT program for 8-weeks using the BP exercise. Before and after the VBT program the following tests were performed: (a) cross-sectional area (CSA) measurements of pectoralis major (PM) muscle; (b) maximal isometric test; (c) progressive loading test; and (d) fatigue test. RESULTS Significant group x time interactions were observed for CSA (P < .01) and peak root mean square in PM (peak RMS-PM, P < .05). VL50 showed significantly greater gains in CSA than VL0 (P < .05). Only the VL15 group showed significant increases in peak RMS-PM (P < .01). Moreover, only VL0 showed significant gains in the early rate of force development (RFD, P = .05), while VL25 and VL50 improved in the late RFD (P ≤ .01-.05). No significant group × time interactions were found for any of the dynamic strength variables analyzed, although all groups showed significant improvements in all these parameters. CONCLUSION Higher VL thresholds allowed for a greater volume load which maximized muscle hypertrophy, whereas lower VL thresholds evoked positive neuromuscular-related adaptations. No significant differences were found between groups for strength gains, despite the wide differences in the total volume accumulated by each group.
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Affiliation(s)
- Fernando Pareja-Blanco
- Physical Performance & Sports Research Center, Department of Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, Spain.,Faculty of Sport Sciences, Department of Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, Spain
| | - Julian Alcazar
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, Toledo, Spain.,CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain
| | - Pedro J Cornejo-Daza
- Physical Performance & Sports Research Center, Department of Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, Spain
| | - Juan Sánchez-Valdepeñas
- Physical Performance & Sports Research Center, Department of Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, Spain
| | - Carlos Rodriguez-Lopez
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, Toledo, Spain.,CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain
| | - Javier Hidalgo-de Mora
- Physical Performance & Sports Research Center, Department of Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, Spain
| | | | - Beatriz Bachero-Mena
- Department of Physical Education and Sports, University of Seville, Seville, Spain
| | - Luis M Alegre
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, Toledo, Spain.,CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain
| | - Manuel Ortega-Becerra
- Physical Performance & Sports Research Center, Department of Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, Spain.,Faculty of Sport Sciences, Department of Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, Spain
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32
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Bachero-Mena B, Sánchez-Moreno M, Pareja-Blanco F, Sañudo B. Acute and Short-Term Response to Different Loading Conditions During Resisted Sprint Training. Int J Sports Physiol Perform 2020; 15:997-1004. [PMID: 32473591 DOI: 10.1123/ijspp.2019-0723] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/17/2019] [Accepted: 10/21/2019] [Indexed: 11/18/2022]
Abstract
PURPOSE To analyze the acute and short-term physical and metabolic responses to resisted sprint training with 5 different loading conditions (0%, 20%, 40%, 60%, and 80% body mass). METHODS Fifteen male participants performed 8 × 20-m sprints with 2-minute rests between sprints with 5 different loading conditions. Subjects performed a battery of tests (creatine kinase and lactate concentrations, countermovement jump, 20-m sprint, and isokinetic knee extension and flexion contractions) at 3 different time points (preexercise [PRE], postexercise [POST], and 24-h postexercise [POST24H]). RESULTS Results revealed significant increases in blood lactate for all loading conditions; however, as sled loadings increased, higher blood lactate concentrations and increments in sprint times during the training session were observed. Significant increases in creatine kinase concentration were observed from PRE to POST24H for all loading conditions. Concerning physical performance, significant decreases in countermovement-jump height from PRE to POST were found for all loading conditions. In addition, significant decreases in 20-m sprint performance from PRE to POST were observed for 0% (P = .05) and 80% (P = .02). No significant differences with PRE were observed for the physical-performance variables at POST24H, except for 20% load, which induced a significant decrease in mean power during knee flexion (P = .03). CONCLUSIONS These results suggest that the higher the load used during resisted sprint training, the higher the physical-performance impairments and metabolic response produced, although all loading conditions led to a complete recovery of sprint performance at POST24H.
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33
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Pareja-Blanco F, Walker S, Häkkinen K. Validity of Using Velocity to Estimate Intensity in Resistance Exercises in Men and Women. Int J Sports Med 2020; 41:1047-1055. [PMID: 32688415 DOI: 10.1055/a-1171-2287] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
This study aimed to examine the validity of using bar velocity to estimate relative load in squat and bench-press exercises for both young men and women. Twenty-five men and 25 women performed a progressive loading test up to 1-RM in the squat and bench-press exercises, which were repeated after 2-weeks. Relationships between mean propulsive velocity and%1-RM were analysed. A second-order polynomial equation for predicting the corresponding velocity of each percentage of 1-RM was developed for men (validation). This equation was then applied in women (cross-validation). Moreover, a specific equation for women was developed (validation) and was also applied in a sub-sample of women (cross-validation). Close relationships (R2: 0.91-0.95) between bar velocity and relative load were observed in both sexes for squat and bench press. Men's equation applied to women showed a high level of agreement, although lower bias and higher level of agreement was observed when a sex-specific equation was applied in women, both validation and cross-validation samples. In conclusion, lifting velocity can be used to accurately prescribe the relative load regardless of sex in both upper-body and lower-body exercises, although when estimating load from velocity measures it will be necessary to use the sex-specific equation for each exercise.
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Affiliation(s)
- Fernando Pareja-Blanco
- Physical Performance & Sports Research Center, Department of Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, Spain
| | - Simon Walker
- NeuroMuscular Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Finland
| | - Keijo Häkkinen
- NeuroMuscular Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Finland
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34
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Loturco I, McGuigan MR, Rodríguez-Rosell D, Pereira LA, Pareja-Blanco F. A Novel Strategy to Determine the 1-Repetition Maximum in the Jump Squat Exercise. J Strength Cond Res 2020; 36:2330-2334. [PMID: 32990685 DOI: 10.1519/jsc.0000000000003696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Loturco, I, McGuigan, MR, Rodríguez-Rosell, D, Pereira, LA, and Pareja-Blanco, F. A novel strategy to determine the 1-repetition maximum in the jump squat exercise. J Strength Cond Res XX(X): 000-000, 2020-This study aimed to determine the maximum relative load of the half-squat (HS; i.e., % HS 1-repetition maximum [1RM]) that can be used in its ballistic variation, namely, the jump squat (JS) exercise, and to examine whether this reference value varies in subjects with different strength levels. In total, 186 elite athletes from 10 distinct sport disciplines participated in this study. A progressive loading test up to HS 1RM was performed during the competitive phase of the season for all athletes. Mean propulsive velocity and propulsive phase duration were also assessed during the 1RM test. Athletes were divided into 3 distinct subgroups: "low," "middle," and "high" strength levels, based on their relative HS 1RM values (kg·kg). A 1-way analysis of variance was used to compare the variables assessed between the groups. Significance level was set at p < 0.05. The high group demonstrated the highest relative HS 1RM values, followed by the middle and low groups (all p < 0.05). No significant differences were observed between the groups for the remaining variables (p > 0.05). It was observed that at 86.0 ± 5.4% 1RM, the full concentric action can already be considered as entirely propulsive in the HS exercise for all subjects, independent of their strength levels. Therefore, this relative strength value may be used as a reference for the 1RM in the JS exercise.
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Affiliation(s)
- Irineu Loturco
- 1NAR-Nucleus of High Performance in Sport, São Paulo, Brazil; 2Department of Human Movement Sciences, Federal University of São Paulo, São Paulo, Brazil; 3University of South Wales, Pontypridd, Wales, United Kingdom; 4Sports Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, Auckland, New Zealand; 5School of Medical and Health Sciences, Edith Cowan University, Perth, Australia; 6Physical Performance and Sports Research Center, Universidad Pablo de Olavide, Seville, Spain; and 7Faculty of Sport Sciences, Department of Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, Spain
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35
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Rodiles-Guerrero L, Pareja-Blanco F, León-Prados JA. Effect of Velocity Loss on Strength Performance in Bench Press Using
a Weight Stack Machine. Int J Sports Med 2020; 41:921-928. [DOI: 10.1055/a-1179-5849] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
AbstractThis study aimed to analyze the effects of three different velocity loss
thresholds (10%: VL10, 30%: VL30 and 50%: VL50) on
maximal strength and velocity at different intensities during bench press using
a weight stack machine (WSM-BP). Forty-five men were randomly assigned to three
groups: VL10 (n=15), VL30 (n=15) and VL50 (n=15), which
followed a 5-week (15 sessions) velocity-based WSM-BP program. Assessments
performed Pre- and Post-training included: a) estimated one-repetition maximum
(1RM) in WSM-BP; b) average velocity attained against all absolute loads common
to Pre- and Post-training tests in WSM-BP; c) average velocity attained against
all absolute loads that were lifted equal to or faster than 0.8
m·s−1 at Pre-training (light loads); and d) average velocity
attained against all absolute loads that were lifted slower than 0.8
m·s−1 at Pre-training (heavy loads). All groups showed
significant improvements in 1RM, velocity against all loads, and velocity
against heavy loads (P<0.001–0.01). However, only the VL10 group
showed significant enhancements in velocity against light loads
(P=0.05). Therefore, the VL10 group showed a higher training efficiency
compared to VL30 and VL50 interventions, since it obtained similar benefits by
performing fewer repetitions.
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Affiliation(s)
- Luis Rodiles-Guerrero
- Physical Performance & Sports Research Center, Universidad
Pablo de Olavide, Seville, Spain
| | - Fernando Pareja-Blanco
- Physical Performance & Sports Research Center, Universidad
Pablo de Olavide, Seville, Spain
- Faculty of Sport Sciences, Department of Sports and Computers Sciences,
Universidad Pablo de Olavide, Seville, Spain
| | - Juan Antonio León-Prados
- Physical Performance & Sports Research Center, Universidad
Pablo de Olavide, Seville, Spain
- Faculty of Sport Sciences, Department of Sports and Computers Sciences,
Universidad Pablo de Olavide, Seville, Spain
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36
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Zabaloy S, Carlos-Vivas J, Freitas TT, Pareja-Blanco F, Loturco I, Comyns T, Gálvez-González J, Alcaraz PE. Muscle Activity, Leg Stiffness, and Kinematics During Unresisted and Resisted Sprinting Conditions. J Strength Cond Res 2020; 36:1839-1846. [DOI: 10.1519/jsc.0000000000003723] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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37
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Lizana JA, Bachero-Mena B, Calvo-Lluch A, Sánchez-Moreno M, Pereira LA, Loturco I, Pareja-Blanco F. Do Faster, Stronger, and More Powerful Athletes Perform Better in Resisted Sprints? J Strength Cond Res 2020; 36:1826-1832. [PMID: 32639382 DOI: 10.1519/jsc.0000000000003719] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Lizana, JA, Bachero-Mena, B, Calvo-Lluch, A, Sánchez-Moreno, M, Pereira, LA, Loturco, I, and Pareja-Blanco, F. Do faster, stronger, and more powerful athletes perform better in resisted sprints? J Strength Cond Res XX(X): 000-000, 2020-This study aimed to analyze the relationships between different strength, power, and speed abilities and resisted sprint performance across a wide range of sled loads (10, 30, and 50% body mass [BM]). Seventy-nine young physically active male sport science students (age: 22.8 ± 3.4 years, BM: 74.2 ± 9.1 kg, and height: 175.4 ± 8.5 cm) performed 2 testing sessions. Session 1 consisted of a 20 m sprint without any additional load and with 10, 30, and 50% BM. Session 2 consisted of countermovement jump and full squat (SQ) tests. The CMJ was performed without any additional load and with loads of 30 and 50% BM, and the SQ was performed with loads corresponding to 30, 50, 70, and 90% BM. Resisted sprint times were moderate to large correlated with unloaded sprint times (r = 0.79 to 0.89), unloaded and loaded jump height (r = -0.62 to -0.71), and SQ performance (r = -0.56 to -0.71). Negative relationships were observed between velocity loss induced by each sled load and jump and SQ performance. The magnitude of these relationships increased with increasing sled loads. In conclusion, differences in speed, strength, and power abilities may explain, at least partially, the individual response of each athlete during sprinting towing a sled, especially with heavier sled loads. Thus, faster, stronger, and more powerful athletes require heavier sled loads (relative to %BM) to experience similar exercise intensities.
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Affiliation(s)
- José Antonio Lizana
- Faculty of Sport Sciences, Department of Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, Spain
| | - Beatriz Bachero-Mena
- Department of Physical Education and Sports, University of Seville, Seville, Spain
| | - Africa Calvo-Lluch
- Faculty of Sport Sciences, Department of Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, Spain
| | | | - Lucas A Pereira
- NAR, Nucleus of High Performance in Sport, Sao Paulo, Brazil.,Department of Human Movement Sciences, Federal University of Sao Paulo, Sao Paulo, Brazil
| | - Irineu Loturco
- NAR, Nucleus of High Performance in Sport, Sao Paulo, Brazil.,Department of Human Movement Sciences, Federal University of Sao Paulo, Sao Paulo, Brazil.,University of South Wales, Pontypridd, Wales, United Kingdom
| | - Fernando Pareja-Blanco
- Faculty of Sport Sciences, Department of Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, Spain.,Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
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38
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Pareja-Blanco F, Pereira LA, Freitas TT, Alcaraz PE, Reis VP, Guerriero A, Arruda AF, Zabaloy S, Sáez De Villarreal E, Loturco I. Acute Effects of Progressive Sled Loading on Resisted Sprint Performance and Kinematics. J Strength Cond Res 2020; 36:1524-1531. [DOI: 10.1519/jsc.0000000000003656] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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39
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Zabaloy S, Pareja-Blanco F, Giráldez JC, Rasmussen JI, González JG. Effects of individualised training programmes based on the force-velocity imbalance on physical performance in rugby players. ISOKINET EXERC SCI 2020. [DOI: 10.3233/ies-192196] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Santiago Zabaloy
- Faculty of Physical Activity and Sports, University of Flores, Buenos Aires, Argentina
- Faculty of Sports Sciences, Pablo de Olavide University, Seville, Spain
| | - Fernando Pareja-Blanco
- Faculty of Sports Sciences, Pablo de Olavide University, Seville, Spain
- Physical and Athletic Performance Research Centre, Department of Sport and Computer Sciences, Pablo de Olavide University, Seville, Spain
| | - Julián C. Giráldez
- Faculty of Physical Activity and Sports, University of Flores, Buenos Aires, Argentina
| | - Juan I. Rasmussen
- Athletic Performance, Club El Nacional Rugby, Buenos Aires, Argentina
| | - Javier Gálvez González
- Faculty of Sports Sciences, Pablo de Olavide University, Seville, Spain
- Physical and Athletic Performance Research Centre, Department of Sport and Computer Sciences, Pablo de Olavide University, Seville, Spain
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40
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Piqueras-Sanchiz F, Martín-Rodríguez S, Pareja-Blanco F, Baraja-Vegas L, Blázquez-Fernández J, Bautista IJ, García-García Ó. Mechanomyographic Measures of Muscle Contractile Properties are Influenced by Electrode Size and Stimulation Pulse Duration. Sci Rep 2020; 10:8192. [PMID: 32424300 PMCID: PMC7235246 DOI: 10.1038/s41598-020-65111-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Accepted: 04/27/2020] [Indexed: 11/22/2022] Open
Abstract
The aim was to determine the effects of changing pulse duration and electrode size on muscle contractile properties. Thirty-six healthy young male participated in the study (age 24.8 ± 5.8 years; height 178.2 ± 0.6 cm; body mass 71.8 ± 7.3 kg; self-reported weekly moderate intensity activity 3.5 ± 1.2 h·week−1). Tensiomyography was used to assess rectus femoris (RF) and vastus medialis (VM) muscles neuromuscular properties of the dominant leg according to the electrode size (3.2–5 cm) and the stimulus length (0.2, 0.5, and 1 ms). Maximal radial displacement (Dm); Contraction time (Tc); Delay time (Td); Sustained time (Ts) and Half relaxation time (Tr) were measured. Relative and absolute reliability was quantified. To analyze the effects of the electrode and the stimulus length, a repeated-measures analysis of variance was used. Dm and Tc parameters showed for both muscles an excellent relative (0.95–0.99) and absolute reliability (1.6–4.2%). However, Ts and Tr showed low values of absolute reliability (4.4–40.9%). The duration of the stimulus length applied to the RF and VM and electrode size significantly influences muscle’s contractile properties (p < 0.05; η2p = 0.09–0.60). The Dm increases substantially as the duration of the stimulus increases and with the use of the larger electrode in both muscles. However, Tc and Td are less affected by both conditions and not entirely clear. Practically, our study suggests that a stimulus pulse duration of 1 ms together with a 5 × 5 cm electrode is necessary to reach a reliable and reproducible assessment of both RF and VM muscles contractile properties.
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Affiliation(s)
| | - Saúl Martín-Rodríguez
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Fernando Pareja-Blanco
- Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - Luis Baraja-Vegas
- Department of Physiotherapy, Catholic University of Valencia, Valencia, Spain
| | | | - Iker J Bautista
- Faculty of Physiotherapy and Podology, Catholic University of Valencia, Valencia, Spain
| | - Óscar García-García
- Laboratory of Sports Performance, Physical Condition and Wellness, Faculty of Education and Sport Sciences, Universidade de Vigo, Pontevedra, Spain.
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41
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Rodiles-Guerrero L, Pareja-Blanco F, León-Prados JA. Comparison of load-velocity relationships in two bench press variations: weight stack machine vs Smith machine. Sports Biomech 2020; 21:1147-1159. [PMID: 32336207 DOI: 10.1080/14763141.2020.1735499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Performing the bench-press (BP) exercise in a weight stack machine (WSM) is a common practice. However, no previous studies have analysed the load-velocity relationship in this BP variant. The purpose of this study was 1) to investigate the load-velocity relationship during BP exercise using a WSM; and 2) to compare the load-velocity relationship in this exercise in two conditions: WSM vs. Smith machine (SM). Twenty-six young men performed a BP progressive loading test to determine their one-repetition maximum and load-velocity relationship using a WSM. Additionally, 19 participants performed two progressive loading tests (WSM and SM). A high relationship was found between the relative load (%1RM) and mean propulsive velocity (MPV) (R2 = 0.97; SEE = 0.07 m/s) in the WSM. Moreover, significant differences were observed (p <.05) in the MPV values attained in every %1RM in WSM and SM from 30 to 75% 1RM. The close relationship between the MPV values and the %1RM in BP exercise using a WSM enables coaches to use the MPV to accurately monitor their athletes on a daily basis. The differences observed between WSM and SM in the %1RM and their respective MPVs indicate that different equations must be used for each exercise mode.
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Affiliation(s)
- Luis Rodiles-Guerrero
- Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - Fernando Pareja-Blanco
- Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain.,Faculty of Sport Sciences, Department of Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, Spain
| | - Juan Antonio León-Prados
- Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain.,Faculty of Sport Sciences, Department of Sports and Computers Sciences, Universidad Pablo de Olavide, Seville, Spain
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42
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Alcazar J, Pareja-Blanco F, Rodriguez-Lopez C, Navarro-Cruz R, Cornejo-Daza PJ, Ara I, Alegre LM. Comparison of linear, hyperbolic and double-hyperbolic models to assess the force-velocity relationship in multi-joint exercises. Eur J Sport Sci 2020; 21:359-369. [PMID: 32255757 DOI: 10.1080/17461391.2020.1753816] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
AbstractThis study assessed the validity of linear, hyperbolic and double-hyperbolic models to fit measured force-velocity (F-V) data in multi-joint exercises and the influence of muscle excitation on the F-V relationship. The force-joint angle and F-V relationships were assessed in 10 cross-training athletes and 14 recreationally resistance-trained subjects in the unilateral leg press (LP) and bilateral bench press (BP) exercises, respectively. A force plate and a linear encoder were installed to register external force and velocity, respectively. Muscle excitation was assessed by surface EMG recording of the quadriceps femoris, biceps femoris and gluteus maximus muscles during the unilateral LP. Linear, Hill's (hyperbolic) and Edman's (double-hyperbolic) equations were fitted to the measured F-V data and compared. Measured F-V data were best fitted by double-hyperbolic models in both exercises (p < 0.05). F-V data deviated from the rectangular hyperbola above a breakpoint located at 90% of measured isometric force (F0) and from the linearity at ≤45% of F0 (both p < 0.05). Hyperbolic equations overestimated F0 values by 13 ± 11% and 6 ± 6% in the LP and BP, respectively (p < 0.05). No differences were found between muscle excitation levels below and above the breakpoint (p > 0.05). Large associations between variables obtained from linear and double-hyperbolic models were noted for F0, maximum muscle power, and velocity between 25% and 100% of F0 (r = 0.70-0.99; all p < 0.05). The F-V relationship in multi-joint exercises was double-hyperbolic, which was unrelated with lower muscle excitation levels. However, linear models may be valid to assess F0, maximal muscle power and velocity between 25% and 100% of F0.
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Affiliation(s)
- Julian Alcazar
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, Toledo, Spain.,CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain
| | - Fernando Pareja-Blanco
- Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - Carlos Rodriguez-Lopez
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, Toledo, Spain.,CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain
| | - Roberto Navarro-Cruz
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, Toledo, Spain.,CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain
| | - Pedro J Cornejo-Daza
- Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville, Spain
| | - Ignacio Ara
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, Toledo, Spain.,CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain
| | - Luis M Alegre
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, Toledo, Spain.,CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain
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43
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Piqueras-Sanchiz F, Martínez-Aranda LM, Pareja-Blanco F, Rodríguez-Ruiz D, García-García Ó. Evolution of contractile properties of the lower limb muscles throughout a season in elite futsal players. J Sports Med Phys Fitness 2020; 60:965-973. [PMID: 32253898 DOI: 10.23736/s0022-4707.20.10345-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Futsal is a team sport involving intermittent technical actions of high intensity, and high physical (strength) and muscular demands. In this regard, the tensiomyography (TMG) is a useful and non-invasive tool for the monitoring and assessment of the muscle's contractile capacity. This study aimed to analyze the changes in the contractile properties produced during the season, as well as to determine the potential cumulative effect of a resistance training (RT) program in futsal players. METHODS Fourteen elite futsal players (2 goalkeepers, 4 defenders, 4 wingers and 3 pivots) were assessed by TMG at 11th, 18th, and 28th week of the season. The maximal radial displacement of the muscle belly (Dm); contraction time (Tc); delay time (Td) and radial displacement velocity (90%) Dm (VrD90) were assessed. After the second measurement, a RT program was included in the regular training sessions and focused on the lower body musculature. It was performed during 9 weeks (1-weekly). Finally, a third measurement was performed between 28th-29th weeks. Repeated measures analysis of variance was used to detect in-season changes. Two factors were included: Time (changes detected after resistance training program) was used as the within-subject factor and the specific position was used as the between-subject factor. RESULTS An increment in Tc for several muscles: biceps femoris (BF; P=0.02), semitendinosus (ST; P=0.04), adductor longus (AL; P=0.008) and gastrocnemius medialis (GM; P=0.009) was observed throughout the season. Similarly, significant increments in Dm for GM (P=0.02) and AL (P=0.05), as well as increments in Td for BF (P=0.002) were found. Moreover, no significant changes in VrD90 between time points 2-3 (analysis of RT effect) were observed. Additionally, the player´s positions reported no significant changes for any of the variables analyzed. CONCLUSIONS An increase respect to baseline levels was observed for Tc, Td and Dm during the season. However, the adaptations to contractile properties were muscle specific. In addition, an in-season 9-week RT program (1-weekly), had no significant effects (time points 2-3) on the contractile properties of futsal players. In addition, there were no differences when comparing different positions.
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Affiliation(s)
| | - Luis M Martínez-Aranda
- Neuroscience of Human Movement Research Group, Faculty of Sport, Catholic University San Antonio, Murcia, Spain
| | - Fernando Pareja-Blanco
- Faculty of Sports Science, Pablo de Olavide University, Seville, Spain.,Physical Performance and Sports Research Center, Department of Sports and Computers Sciences, Pablo de Olavide University, Seville, Spain
| | | | - Óscar García-García
- Sport Performance, Physical Condition and Wellness Lab, University of Vigo, Pontevedra, Spain -
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44
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Rodríguez-Rosell D, Yáñez-García JM, Mora-Custodio R, Pareja-Blanco F, Ravelo-García AG, Ribas-Serna J, González-Badillo JJ. Velocity-based resistance training: impact of velocity loss in the set on neuromuscular performance and hormonal response. Appl Physiol Nutr Metab 2020; 45:817-828. [PMID: 32017598 DOI: 10.1139/apnm-2019-0829] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study aimed to compare the effects of 2 resistance training (RT) programs with different velocity losses (VLs) allowed in each set: 10% (VL10%) versus 30% (VL30%) on neuromuscular performance and hormonal response. Twenty-five young healthy males were randomly assigned into 2 groups: VL10% (n = 12) or VL30% (n = 13). Subjects followed a velocity-based RT program for 8 weeks (2 sessions per week) using only the full-squat (SQ) exercise at 70%-85% 1-repetition maximum (1RM). Repetition velocity was recorded in all training sessions. A 20-m running sprint, countermovement jump (CMJ), 1RM, muscle endurance, and electromyogram (EMG) during SQ exercise and resting hormonal concentrations were assessed before and after the RT program. Both groups showed similar improvements in muscle strength and endurance variables (VL10%: 7.0%-74.8%; VL30%: 4.2%-73.2%). The VL10% resulted in greater percentage increments in CMJ (9.2% vs. 5.4%) and sprint performance (-1.5% vs. 0.4%) than VL30%, despite VL10% performing less than half of the repetitions than VL30% during RT. In addition, only VL10% showed slight increments in EMG variables, whereas no significant changes in resting hormonal concentrations were observed. Therefore, our results suggest that velocity losses in the set as low as 10% are enough to achieve significant improvements in neuromuscular performance, which means greater efficiency during RT. Novelty The VL10% group showed similar or even greater percentage of changes in physical performance compared with VL30%. No significant changes in resting hormonal concentrations were observed for any training group. Curvilinear relationships between percentage VL in the set and changes in strength and CMJ performance were observed.
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Affiliation(s)
- David Rodríguez-Rosell
- Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville 41013, Spain.,Department of Sport and Informatics, Universidad Pablo de Olavide, Seville 41013, Spain
| | - Juan Manuel Yáñez-García
- Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville 41013, Spain.,Department of Sport and Informatics, Universidad Pablo de Olavide, Seville 41013, Spain
| | - Ricardo Mora-Custodio
- Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville 41013, Spain.,Department of Sport and Informatics, Universidad Pablo de Olavide, Seville 41013, Spain
| | - Fernando Pareja-Blanco
- Physical Performance & Sports Research Center, Universidad Pablo de Olavide, Seville 41013, Spain.,Department of Sport and Informatics, Universidad Pablo de Olavide, Seville 41013, Spain
| | - Antonio G Ravelo-García
- Institute for Technological Development and Innovation in Communications, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria 35017, Spain
| | - Juan Ribas-Serna
- Department of Medical Physiology and Biophysics, University of Seville, Seville 41009, Spain
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45
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Sánchez-Moreno M, Cornejo-Daza PJ, González-Badillo JJ, Pareja-Blanco F. Effects of Velocity Loss During Body Mass Prone-Grip Pull-up Training on Strength and Endurance Performance. J Strength Cond Res 2020; 34:911-917. [DOI: 10.1519/jsc.0000000000003500] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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46
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Galiano C, Pareja-Blanco F, Hidalgo de Mora J, Sáez de Villarreal E. Low-Velocity Loss Induces Similar Strength Gains to Moderate-Velocity Loss During Resistance Training. J Strength Cond Res 2020; 36:340-345. [DOI: 10.1519/jsc.0000000000003487] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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47
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Totó ECDC, Conceição MS, Vieira A, Pareja-Blanco F, Bottaro M, Boullosa D. Are cluster sets an effective method to induce muscular hypertrophy in response to resistance training? Rev Bras Ciênc Esporte 2020. [DOI: 10.1590/rbce.42.2019.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT There are a plethora of studies that have analyzed the effects of different resistance training methods on muscle hypertrophy. Recent studies have pointed out some potential advantage of training using cluster sets (CS) compared with traditional sets. It is still unclear whether CS are an effective method. The objective of this review was to investigate and discuss the current knowledge about the effect of CS on muscle hypertrophy. Four studies investigating the effect of CS on muscle hypertrophy were found. These studies demonstrated that CS induced similar or lower muscle hypertrophy than traditional sets. Thus, CS may lead to muscle hypertrophy, but did not provide a superior stimulus when compared to traditional sets of equated load.
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48
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Ortega-Becerra M, Pareja-Blanco F. Sex and standard levels differences in anthropometric and physical fitness characteristics in youth handball players. KINESIOLOGY 2020. [DOI: 10.26582/k.52.2.8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
This study analyzed the relationships between throwing velocity and anthropometric and fitness parameters in young female and male handball players of different ages. A total of 159 players participated: females under-16 (FU16, n=44) and under-14 (FU14, n=21); males under-16 (MU16, n=54) and under-14 (MU14, n=40). The following was measured: body height, arm span, body mass, total finger span, hand length, maximal isometric handgrip force, handball throwing velocity, 20-m sprints, countermovement jump, and change of direction. Group MU16 showed significantly (p<.05) greater values of anthropometric characteristics than groups FU16 and MU14. No significant differences were observed between FU14 and MU14 in any of the anthropometric variables analyzed, or between the two female groups (FU16 vs. FU14). MU16 showed significantly (p<.05) better performance in all fitness parameters than FU16 and MU14. No significant differences were observed between FU14 and MU14 or between FU16 and FU14. Throwing performance correlated (p<.05) with almost all the anthropometric and fitness parameters evaluated within each group. Taken together, male handball players showed greater anthropometric and fitness characteristics in the U16 compared to the U14, whereas no substantial differences were observed in female handball players between the two groups. Handball throwing velocity is associated with body and hand dimensions and other physical performance parameters.
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Affiliation(s)
- Manuel Ortega-Becerra
- Physical Performance and Athletic Research Center, Faculty of Sports Science, Pablo de Olavide University, Sevilla, Spain
| | - Fernando Pareja-Blanco
- Physical Performance and Athletic Research Center, Faculty of Sports Science, Pablo de Olavide University, Sevilla, Spain
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49
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Pareja-Blanco F, Rodríguez-Rosell D, González-Badillo JJ. Time course of recovery from resistance exercise before and after a training program. J Sports Med Phys Fitness 2019; 59:1458-1465. [DOI: 10.23736/s0022-4707.19.09334-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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50
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Pareja-Blanco F, Villalba-Fernández A, Cornejo-Daza PJ, Sánchez-Valdepeñas J, González-Badillo JJ. Time Course of Recovery Following Resistance Exercise with Different Loading Magnitudes and Velocity Loss in the Set. Sports (Basel) 2019; 7:sports7030059. [PMID: 30836680 PMCID: PMC6473797 DOI: 10.3390/sports7030059] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 02/22/2019] [Accepted: 02/26/2019] [Indexed: 11/20/2022] Open
Abstract
The aim of this study was to compare the time course of recovery following four different resistance exercise protocols in terms of loading magnitude (60% vs. 80% 1RM—one-repetition maximum) and velocity loss in the set (20% vs. 40%). Seventeen males performed four different protocols in full squat exercise, which were as follows: (1) 60% 1RM with a velocity loss of 20% (60-20), (2) 60% 1RM with a velocity loss of 40% (60-40), (3) 80% 1RM with a velocity loss of 20% (80-20), and (4) 80% 1RM with a velocity loss of 40% (80-40). Movement velocity against the load that elicited a 1 m·s−1 velocity at baseline measurements (V1-load), countermovement jump (CMJ) height, and sprint time at 20 m (T20) were assessed at Pre, Post, 6 h-Post, 24 h-Post, and 48 h-Post. Impairments in V1-load were significantly higher for 60-40 than other protocols at Post (p < 0.05). The 60-20 and 80-40 protocols exhibited significant performance impairments for V1-load at 6 h-Post and 24 h-Post, respectively (p < 0.05). CMJ height remained decreased for 60-20 and 60-40 until 24 h-Post (p < 0.001–0.05). Regarding T20, the 80-40 protocol resulted in higher performance than 60-40 at 24 h-Post and the 80-20 protocol induced a greater performance than 60-40 protocol at 48 h-Post (p < 0.05). A higher velocity loss during the set (40%) and a lower relative load (60% 1RM) resulted in greater fatigue and slower rate of recovery than lower velocity loss (20%) and higher relative load (80% 1RM).
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Affiliation(s)
- Fernando Pareja-Blanco
- Physical Performance & Athletic Research Center, Faculty of Sports Science, Pablo de Olavide University, Ctra. Utrera km 1, 41013 Seville, Spain.
| | - Antonio Villalba-Fernández
- Physical Performance & Athletic Research Center, Faculty of Sports Science, Pablo de Olavide University, Ctra. Utrera km 1, 41013 Seville, Spain.
| | - Pedro J Cornejo-Daza
- Physical Performance & Athletic Research Center, Faculty of Sports Science, Pablo de Olavide University, Ctra. Utrera km 1, 41013 Seville, Spain.
| | - Juan Sánchez-Valdepeñas
- Physical Performance & Athletic Research Center, Faculty of Sports Science, Pablo de Olavide University, Ctra. Utrera km 1, 41013 Seville, Spain.
| | - Juan José González-Badillo
- Physical Performance & Athletic Research Center, Faculty of Sports Science, Pablo de Olavide University, Ctra. Utrera km 1, 41013 Seville, Spain.
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