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Alonso-Callejo A, García-Unanue J, Guitart-Trench M, Majano C, Gallardo L, Felipe JL. Validity and Reliability of the Acceleration-Speed Profile for Assessing Running Kinematics' Variables Derived From the Force-Velocity Profile in Professional Soccer Players. J Strength Cond Res 2024; 38:563-570. [PMID: 37831781 PMCID: PMC10880943 DOI: 10.1519/jsc.0000000000004637] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2023]
Abstract
ABSTRACT Alonso-Callejo, A, García-Unanue, J, Guitart-Trench, M, Majano, C, Gallardo, L, and Felipe, J. Validity and reliability of the acceleration-speed profile for assessing running kinematics' variables derived from the force-velocity profile in professional soccer players. J Strength Cond Res 38(3): 563-570, 2024-The aim of this research is to assess the validity and reliability of the acceleration-speed profile (ASP) for measuring the mechanical variables of running kinematics when compared with the force-velocity profile (FVP) obtained by reference systems. The ASP and FVP of 14 male players of an elite football club were assessed during a competitive microcycle. Three ASPs were tested according to the number and type of sessions included in its plotting (ASP1: 5 training sessions and competitive match; ASP2: 5 training sessions; ASP3: competitive match). Force-velocity profile was tested 4 days before match (MD-4) with a 30-m linear sprint using 3 previously validated devices (encoder, mobile App, and global positioning system). Level of significance was p < 0.05. Acceptable reliability (intraclass correlation coefficient > 0.5) was found between the ASP1 and the encoder for all variables (F 0 -A 0 , V 0 -S 0 , and V max ). The more reliable ASP method was the ASP1 showing a lower bias than the ASP2 and ASP3 methods for almost all variables and reference systems. For ASP1, lower mean absolute error (MAE: 0.3-0.5) and higher correlation (P-M corr: 0.57-0.92) were found on variables related to the velocity in comparison with variables related to the early acceleration phase (F 0 -A 0 ; MAE: 0.49-0.63; P-M corr: 0.13-0.41). Acceleration-speed profile, when computed with data from a complete competitive week, is a reliable method for analyzing variables derived from velocity and acceleration kinematics. From these results, practitioners could implement ASP and the applications of the FVP previously studied, such as resistance training prescription, performance assessment, and return-to-play management.
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Affiliation(s)
- Antonio Alonso-Callejo
- IGOID Research Group, Department of Physical Activity and Sport Sciences, University of Castilla-La Mancha, Toledo, Spain
| | - Jorge García-Unanue
- IGOID Research Group, Department of Physical Activity and Sport Sciences, University of Castilla-La Mancha, Toledo, Spain
| | - Marc Guitart-Trench
- Medical and Performance Department, Barça Innovation Hub, Futbol Club Barcelona, Barcelona, Spain; and
| | - Carlos Majano
- IGOID Research Group, Department of Physical Activity and Sport Sciences, University of Castilla-La Mancha, Toledo, Spain
| | - Leonor Gallardo
- IGOID Research Group, Department of Physical Activity and Sport Sciences, University of Castilla-La Mancha, Toledo, Spain
| | - Jose Luis Felipe
- IGOID Research Group, Department of Physical Activity and Sport Sciences, University of Castilla-La Mancha, Toledo, Spain
- Performance Analysis Department, UD Las Palmas, Las Palmas de Gran Canaria, Spain
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Majano C, Garcia-Unanue J, Fernández-Cuevas I, Escamilla-Galindo V, Alonso-Callejo A, Sanchez-Sanchez J, Gallardo L, Felipe JL. Association between physical demands, skin temperature and wellbeing status in elite football players. Sci Rep 2023; 13:13780. [PMID: 37612294 PMCID: PMC10447551 DOI: 10.1038/s41598-023-40396-y] [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: 03/27/2023] [Accepted: 08/09/2023] [Indexed: 08/25/2023] Open
Abstract
The demanding nature of elite football requires players to be closely monitored to ensure optimal performance and minimize injury risk. This study aimed to evaluate the relationship between physical demands, skin temperature, and well-being status in 30 elite football players over a 12-week competitive period. Thermography assessments, weekly Well-being questionnaires, and daily training and match load recordings were used to gather data. Results indicated that along the microcycles there was a decrease in high-intensity accelerations and decelerations distance completed, while maintaining other high-intensity actions. Furthermore, it was found that high-intensity movements contribute to the generation of thermal asymmetries in the thighs; the adductor thermal asymmetry showed a positive relationship with stress and muscle soreness, the knee thermal asymmetry had a positive relationship with fatigue and a negative relationship with rest and quality of rest, and finally the hamstrings muscles exhibited significant differences between the thermal asymmetry groups, with the high asymmetry completing less high intensity actions than the low asymmetry group. In conclusion, this study highlights the interconnections between physical demands, skin temperature, and well-being in elite football players and provides valuable insights for coaches and trainers in their efforts to optimize performance and health.
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Affiliation(s)
- Carlos Majano
- IGOID Research Group, Physical Activity and Sport Sciences Department, University of Castilla-La Mancha, Avda. De Carlos III S/N, 45071, Toledo, Spain
| | - Jorge Garcia-Unanue
- IGOID Research Group, Physical Activity and Sport Sciences Department, University of Castilla-La Mancha, Avda. De Carlos III S/N, 45071, Toledo, Spain.
| | - Ismael Fernández-Cuevas
- Research Department, ThermoHuman (R&D Department, ThermoHuman, Spain), Madrid, Spain
- Faculty of Sciences for Physical Activity and Sport (INEF), Universidad Politécnica de Madrid, 28040, Madrid, Spain
| | | | - Antonio Alonso-Callejo
- IGOID Research Group, Physical Activity and Sport Sciences Department, University of Castilla-La Mancha, Avda. De Carlos III S/N, 45071, Toledo, Spain
| | - Javier Sanchez-Sanchez
- School of Sport Sciences, Universidad Europea de Madrid, 28670, Villaviciosa de Odón, Spain
| | - Leonor Gallardo
- IGOID Research Group, Physical Activity and Sport Sciences Department, University of Castilla-La Mancha, Avda. De Carlos III S/N, 45071, Toledo, Spain
| | - Jose Luis Felipe
- IGOID Research Group, Physical Activity and Sport Sciences Department, University of Castilla-La Mancha, Avda. De Carlos III S/N, 45071, Toledo, Spain
- Performance Analysis Department, UD Las Palmas, 35019, Las Palmas de Gran Canaria, Spain
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Majano C, García-Unanue J, Hernandez-Martin A, Sánchez-Sánchez J, Gallardo L, Felipe JL. Relationship between Repeated Sprint Ability, Countermovement Jump and Thermography in Elite Football Players. Sensors (Basel) 2023; 23:631. [PMID: 36679427 PMCID: PMC9863071 DOI: 10.3390/s23020631] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/27/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
Football is a very demanding sport which requires players to exert maximum effort, producing fatigue and eventually injuries. Thermography can be used to detect fatigue and prevent its consequences through thermal asymmetries in the bilateral body areas; however, its adequacy for elite footballers has not been widely studied. Therefore, the objective of the present investigation was to determine the suitability of thermography to detect fatigue in male football players. For this reason, twenty participants were gathered into a pair of subgroups (low [<0.2 °C] vs. high thermal asymmetry [≥0.2 °C]) based on a thermography session of the lower limbs (thighs, calves, and hamstrings). After the thermography session, players performed CMJs before and after an RSA test (6 × 30 m/20″). A mixed two-way analysis of variance and Bonferroni post hoc pairwise comparisons were undertaken to analyse the results. No significant differences (p > 0.05) were found in any of the RSA test variables between low and high thermal asymmetry groups for thighs and calves. On the other hand, the low thermal asymmetry hamstring group reported a smaller percentage difference in sprints for the first sprint (%Diff) and a larger percentage difference in sprints two and three with respect to the best sprint (%Best). For CMJs, the low thermal asymmetry hamstring group reported significantly higher values post-RSA test, indicating better performance. Accordingly, thermography can provide information about performance in CMJ and RSA tests through hamstring asymmetries over 0.2 °C. Meanwhile, larger asymmetries than 0.2 °C in calves and thighs do not seem to be related to performance in these tests; therefore, coaches should consider if it is optimal to align players with high hamstring asymmetries.
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Affiliation(s)
- Carlos Majano
- IGOID Research Group, Physical Activity and Sport Sciences Department, University of Castilla-La Mancha, 45071 Toledo, Spain
| | - Jorge García-Unanue
- IGOID Research Group, Physical Activity and Sport Sciences Department, University of Castilla-La Mancha, 45071 Toledo, Spain
| | - Antonio Hernandez-Martin
- IGOID Research Group, Physical Activity and Sport Sciences Department, University of Castilla-La Mancha, 45071 Toledo, Spain
| | - Javier Sánchez-Sánchez
- School of Sport Sciences, Universidad Europea de Madrid, 28670 Villaviciosa de Odón, Spain
| | - Leonor Gallardo
- IGOID Research Group, Physical Activity and Sport Sciences Department, University of Castilla-La Mancha, 45071 Toledo, Spain
| | - Jose Luis Felipe
- IGOID Research Group, Physical Activity and Sport Sciences Department, University of Castilla-La Mancha, 45071 Toledo, Spain
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Linares M, López-Ejeda N, Álvarez P, Culebras E, Díaz E, García MT, Majano C, Morales ML, Rodríguez-García A, Rodríguez-Avial I, Utrilla CL, Valenzuela MV, Valderrama MJ. Service-Learning, Movies, and Infectious Diseases: Implementation of an Active Educational Program in Microbiology as a Tool for Engagement in Social Justice. Front Microbiol 2021; 12:589401. [PMID: 34267731 PMCID: PMC8276174 DOI: 10.3389/fmicb.2021.589401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 07/30/2020] [Accepted: 05/31/2021] [Indexed: 11/13/2022] Open
Abstract
Service-Learning is an educational methodology that allows student learning while addressing community needs. A program in microbiology and infectious diseases was implemented in Universidad Complutense de Madrid, Spain. University lecturers, clinical microbiologists, doctorate students, and undergraduates from several Bachelor Degrees and courses worked in an interdisciplinary team along with social institutions that attend disadvantaged persons. Using commercial movies that deal with infectious diseases, the students learn clinical microbiology, prepare divulgation materials, visit social centers to accompany, and help others to know about illnesses and prevention. The program was developed through two academic years and involved 58 voluntary students, 13 teachers and tutors, and 4 social entities as community partners. Postsurvey evaluation of the program revealed a highly satisfactory achievement of goals: acquiring scientific and personal competencies by university students, including critical analysis and science diffusion, solving problems or collaborative team working, and contributing, together with the tutors, to the social responsibility of the university.
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Affiliation(s)
- M Linares
- Department Biochemistry and Molecular Biology, Faculty of Pharmacy, Universidad Complutense de Madrid, Madrid, Spain.,Department of Translational Hematology, Instituto de Investigación Hospital 12 de Octubre, Madrid, Spain
| | - N López-Ejeda
- Department of Biodiversity, Ecology and Evolution, Faculty of Biology, Universidad Complutense de Madrid, Madrid, Spain
| | - P Álvarez
- Department of Cellular Biology, Faculty of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - E Culebras
- Hospital Clínico San Carlos, Madrid, Spain
| | - E Díaz
- Higher Technical School of Telecommunications Engineering, Universidad Politécnica de Madrid, Madrid, Spain
| | - M T García
- Department of Genetics, Physiology and Microbiology, Faculty of Biology, Universidad Complutense de Madrid, Madrid, Spain
| | - C Majano
- Department of Genetics, Physiology and Microbiology, Faculty of Biology, Universidad Complutense de Madrid, Madrid, Spain
| | - M L Morales
- Department of Translational Hematology, Instituto de Investigación Hospital 12 de Octubre, Madrid, Spain
| | - A Rodríguez-García
- Department of Translational Hematology, Instituto de Investigación Hospital 12 de Octubre, Madrid, Spain
| | | | - C L Utrilla
- Department of Genetics, Physiology and Microbiology, Faculty of Biology, Universidad Complutense de Madrid, Madrid, Spain
| | - M V Valenzuela
- Department of Genetics, Physiology and Microbiology, Faculty of Biology, Universidad Complutense de Madrid, Madrid, Spain
| | - M J Valderrama
- Department of Genetics, Physiology and Microbiology, Faculty of Biology, Universidad Complutense de Madrid, Madrid, Spain
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Hernandez-Martin A, Sanchez-Sanchez J, Felipe JL, Manzano-Carrasco S, Majano C, Gallardo L, Garcia-Unanue J. Physical Demands of U10 Players in a 7-a-Side Soccer Tournament Depending on the Playing Position and Level of Opponents in Consecutive Matches Using Global Positioning Systems (GPS). Sensors (Basel) 2020; 20:E6968. [PMID: 33291228 PMCID: PMC7729596 DOI: 10.3390/s20236968] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/04/2020] [Accepted: 12/04/2020] [Indexed: 11/28/2022]
Abstract
The aim of this study was to analyse the physical demands of U10 players in a 7-a-side-soccer tournament based on the playing positions in 6 consecutive matches by global positioning systems (GPS). Variables of total distance, relative distance in different speed zones, maximum speed, time interval between accelerations, maximum speed acceleration, maximum acceleration, acceleration distance and the number of high-intensity accelerations were analysed. Differences between playing positions were found in the total distance covered by the midfielders. They covered higher total distances than the defenders (+1167 m; 95% CI: 411 to 1922 m; effect size (ES) = 1.41; p < 0.05) and forwards (+1388 m; CI 95%: 712 a 2063 m; TE = 0.85; p < 0.05). The total covered distance increased in the final rounds with respect to the group stage (p < 0.05; ES: 0.44 to 1.62), and high-intensity actions, such as the number of accelerations, were greater in the final rounds compared to the group stage (p < 0.05; ES: 0.44 to 1.62). The physical performance of young football players in a tournament with consecutive matches on a 40 × 62 m football field on the same day is influenced by the playing position and dependent on the level difference between opponents.
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Affiliation(s)
- Antonio Hernandez-Martin
- IGOID Research Group, Physical Activity and Sport Sciences Department, University of Castilla-La Mancha, 45071 Toledo, Spain; (A.H.-M.); (S.M.-C.); (C.M.); (L.G.); (J.G.-U.)
| | - Javier Sanchez-Sanchez
- School of Sport Sciences, Universidad Europea de Madrid, 28670 Villaviciosa de Odón, Spain;
| | - Jose Luis Felipe
- School of Sport Sciences, Universidad Europea de Madrid, 28670 Villaviciosa de Odón, Spain;
| | - Samuel Manzano-Carrasco
- IGOID Research Group, Physical Activity and Sport Sciences Department, University of Castilla-La Mancha, 45071 Toledo, Spain; (A.H.-M.); (S.M.-C.); (C.M.); (L.G.); (J.G.-U.)
| | - Carlos Majano
- IGOID Research Group, Physical Activity and Sport Sciences Department, University of Castilla-La Mancha, 45071 Toledo, Spain; (A.H.-M.); (S.M.-C.); (C.M.); (L.G.); (J.G.-U.)
| | - Leonor Gallardo
- IGOID Research Group, Physical Activity and Sport Sciences Department, University of Castilla-La Mancha, 45071 Toledo, Spain; (A.H.-M.); (S.M.-C.); (C.M.); (L.G.); (J.G.-U.)
| | - Jorge Garcia-Unanue
- IGOID Research Group, Physical Activity and Sport Sciences Department, University of Castilla-La Mancha, 45071 Toledo, Spain; (A.H.-M.); (S.M.-C.); (C.M.); (L.G.); (J.G.-U.)
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