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Coratella G, Varesco G, Rozand V, Cuinet B, Sansoni V, Lombardi G, Vernillo G, Mourot L. Downhill running increases markers of muscle damage and impairs the maximal voluntary force production as well as the late phase of the rate of voluntary force development. Eur J Appl Physiol 2024; 124:1875-1883. [PMID: 38195943 PMCID: PMC11129977 DOI: 10.1007/s00421-023-05412-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 12/31/2023] [Indexed: 01/11/2024]
Abstract
PURPOSE To examined the time-course of the early and late phase of the rate of voluntary force development (RVFD) and muscle damage markers after downhill running. METHODS Ten recreational runners performed a 30-min downhill run at 10 km h-1 and -20% (-11.3°) on a motorized treadmill. At baseline and each day up to 4 days RVFD, knee extensors maximum voluntary isometric force (MVIC), serum creatine kinase (CK) concentration, quadriceps swelling, and soreness were assessed. The early (0-50 ms) and late (100-200 ms) phase of the RVFD, as well as the force developed at 50 and 200 ms, were also determined. RESULTS MVIC showed moderate decrements (p < 0.05) and recovered after 4 days (p > 0.05). Force at 50 ms and the early phase were not impaired (p > 0.05). Conversely, force at 200 ms and the late phase showed moderate decrements (p < 0.05) and recovered after 3 and 4 days, respectively (p > 0.05). CK concentration, quadriceps swelling, and soreness increased (p < 0.05) were overall fully resolved after 4 days (p > 0.05). CONCLUSION Downhill running affected the knee extensors RVFD late but not early phase. The RVFD late phase may be used as an additional marker of muscle damage in trail running.
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Affiliation(s)
- Giuseppe Coratella
- Department of Biomedical Sciences for Health, Università Degli Studi Di Milano, Milan, Italy
| | - Giorgio Varesco
- Université Jean Monnet Saint-Etienne, Inter-University Laboratory of Human Movement Biology, 42023, Saint-Etienne, France
- Laboratory Movement-Interactions-Performance, MIP Lab, UR 4334, Nantes Université, F-44000, Nantes, France
| | - Vianney Rozand
- Université Jean Monnet Saint-Etienne, Inter-University Laboratory of Human Movement Biology, 42023, Saint-Etienne, France
| | - Benjamin Cuinet
- Prognostic Factors and Regulatory Factors of Cardiac and Vascular Pathologies (EA3920), Exercise Performance Health Innovation (EPHI) Platform, University of Franche-Comté, Besançon, France
| | - Veronica Sansoni
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Instituto Ortopedico Galeazzi, 20157, Milan, Italy
| | - Giovanni Lombardi
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Instituto Ortopedico Galeazzi, 20157, Milan, Italy
- Department of Athletics, Strength and Conditioning, Poznań University of Physical Education, 61-871, Poznań, Poland
| | - Gianluca Vernillo
- Department of Biomedical Sciences for Health, Università Degli Studi Di Milano, Milan, Italy.
| | - Laurent Mourot
- Prognostic Factors and Regulatory Factors of Cardiac and Vascular Pathologies (EA3920), Exercise Performance Health Innovation (EPHI) Platform, University of Franche-Comté, Besançon, France
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Oranchuk DJ, Bodkin SG, Boncella KL, Harris-Love MO. Exploring the associations between skeletal muscle echogenicity and physical function in aging adults: A systematic review with meta-analyses. JOURNAL OF SPORT AND HEALTH SCIENCE 2024:S2095-2546(24)00076-0. [PMID: 38754733 DOI: 10.1016/j.jshs.2024.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/18/2024] [Accepted: 04/01/2024] [Indexed: 05/18/2024]
Abstract
BACKGROUND Assessment and quantification of skeletal muscle within the aging population is vital for diagnosis, treatment, and injury/disease prevention. The clinical availability of assessing muscle quality through diagnostic ultrasound presents an opportunity to be utilized as a screening tool for function-limiting diseases. However, relationships between muscle echogenicity and clinical functional assessments require authoritative analysis. Thus, we aimed to (a) synthesize the literature to assess the relationships between skeletal muscle echogenicity and physical function in older (≥60 years) adults, (b) perform pooled analyses of relationships between skeletal muscle echogenicity and physical function, and (c) perform sub-analyses to determine between-muscle relationships. METHODS CINAHL, Embase, MEDLINE, PubMed, and Web of Science databases were systematically searched to identify articles relating skeletal muscle echogenicity to physical function in older adults. Risk-of-bias assessments were conducted along with funnel plot examination. Meta-analyses with and without sub-analyses for individual muscles were performed utilizing Fisher's Z transformation for the most common measures of physical function. Fisher's Z was back-transformed to Pearson's r for interpretation. RESULTS Fifty-one articles (n = 5095, female = ∼2759, male = ∼2301, 72.5 ± 5.8 years, mean ± SD (1 study did not provide sex descriptors)) were extracted for review, with previously unpublished data obtained from the authors of 13 studies. The rectus femoris (n = 34) and isometric knee extension strength (n = 22) were the most accessed muscle and physical qualities, respectively. The relationship between quadriceps echogenicity and knee extensor strength was moderate (n = 2924, r = -0.36 (95% confidence interval: -0.38 to -0.32), p < 0.001), with all other meta-analyses (grip strength, walking speed, sit-to-stand, timed up-and-go) resulting in slightly weaker correlations (r = -0.34 to -0.23, all p < 0.001). Sub-analyses determined minimal differences in predictive ability between muscle groups, although combining muscles (e.g., rectus femoris + vastus lateralis) often resulted in stronger correlations with maximal strength. CONCLUSION While correlations were modest, the affordable, portable, and noninvasive ultrasonic assessment of muscle quality was a consistent predictor of physical function in older adults. Minimal between-muscle differences suggest that echogenicity estimates of muscle quality are systemic. Therefore, practitioners may be able to scan a single muscle to estimate full-body skeletal muscle quality/composition, while researchers should consider combining multiple muscles to strengthen the model.
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Affiliation(s)
- Dustin J Oranchuk
- Muscle Morphology, Mechanics, and Performance Laboratory, Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.
| | - Stephan G Bodkin
- Muscle Morphology, Mechanics, and Performance Laboratory, Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Physical Therapy and Athletic Training, University of Utah, Salt Lake City, UT 84108, USA
| | - Katie L Boncella
- Muscle Morphology, Mechanics, and Performance Laboratory, Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Michael O Harris-Love
- Muscle Morphology, Mechanics, and Performance Laboratory, Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
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Cruz-Montecinos C, Moena-León M, Durán-Ovalle A, Lizama-Jofré A, Soto V, Oyarzún A, Tapia C, Freitas SR, Pinto RS, Núñez-Cortés R, Daffunchio C. 30-sit-to-stand power is a better tool than isometric knee extensor strength to detect motor impairment in people with haemophilic arthropathy. Haemophilia 2024. [PMID: 38712982 DOI: 10.1111/hae.15021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 05/08/2024]
Abstract
INTRODUCTION Regular assessment of motor impairments is crucial in people with haemophilic arthropathy (PwHA). This study aimed to determine if there are differences in 30-seconds sit-to-stand (30-STS) power and maximal voluntary isometric contraction (MVIC) of the knee extensors between PwHA and healthy control group (CG). The secondary aims were to investigate the correlation between 30-STS power and MVIC of knee extensors with clinical characteristics and to assess their effectiveness in identifying motor impairment in PwHA. METHODS A cross-sectional study was conducted by collecting data from PwHA (n = 17) and a sedentary CG (n = 15). MVIC (torque) and 30-STS power were normalised to body mass. Correlation analysis and simple linear regression adjusted for age were used to assess the association between tests and clinical variables. Using z-scores derived from the mean and standard deviation of the CG, we compared the MVIC and the 30-STS power in PwHA. RESULTS PwHA showed lower MVIC and 30-STS power compared to CG (p < .001; large effect size d > .8). Lower 30-STS power was associated with greater joint impairment and greater fear of movement, whereas MVIC showed no association with clinical variables. 30-STS power showed a lower z-score compared to MVIC (p < .001). In addition, 30-STS power detected 47% of PwHA with motor impairment compared to 0% for MVIC (p = .002). CONCLUSIONS Our results suggest that 30-STS power may be more effective than knee extensors MVIC in detecting motor impairment in PwHA. Consequently, lower limb skeletal muscle power, rather than maximum knee extensor strength, appears to be more affected in PwHA.
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Affiliation(s)
- Carlos Cruz-Montecinos
- Department of Physical Therapy, Faculty of Medicine, University of Chile, Santiago, Chile
- Research, Innovation, and Development Section in Kinesiology, Kinesiology Unit, San José Hospital, Santiago, Chile
| | - María Moena-León
- School of Physical Therapy, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Antonio Durán-Ovalle
- School of Physical Therapy, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Aracelli Lizama-Jofré
- School of Physical Therapy, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Verónica Soto
- Haemophilia Unit, Roberto del Río Hospital, Santiago, Chile
| | - Andrés Oyarzún
- Orthopaedic Surgery Unit, Hospital San Jose, Santiago, Chile, San José Hospital, Santiago, Chile
| | - Claudio Tapia
- Department of Physical Therapy, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Sandro R Freitas
- Neuromuscular Research Lab, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, Lisboa, Portugal
| | - Ronei S Pinto
- Strength Training Research Group (GPTF), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Rodrigo Núñez-Cortés
- Department of Physical Therapy, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Carla Daffunchio
- Department of Traumatology, Juan A. Fernàndez Hospital, CABA, Buenos Aires, Argentina
- Haemophilia Foundation, CABA, Buenos Aires, Argentina
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Thompson BJ, Conchola EC, Clevenger KA. Age-related effects of neuromuscular fatigue and acute recovery responses on maximal and rapid torque measures of the leg extensors and flexors. Eur J Appl Physiol 2024:10.1007/s00421-024-05493-4. [PMID: 38702553 DOI: 10.1007/s00421-024-05493-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 04/17/2024] [Indexed: 05/06/2024]
Abstract
PURPOSE To examine the effects of neuromuscular fatigue and recovery on maximal and rapid torque characteristics in young and old men for the leg extensors and flexors. METHODS Twenty-one young (age = 24.8 years) and 19 old (72.1 years) men performed maximal voluntary contractions (MVCs) before and at 0, 7, 15, and 30 min following an intermittent submaximal fatigue task. Outcome measures included endurance time, maximal (peak torque; PT) and rapid (absolute and normalized rate of torque development; RTD and nRTD) torque characteristics. RESULTS The old men had greater endurance times than the young men. Differential recovery patterns were observed for PT, and early and late RTD phases between the leg extensor and flexor muscle groups such that the early rapid torque variables and the flexors demonstrated slower recovery compared to later rapid torque variables and the extensors. The normalized RTD variables were reduced less after the fatigue task and differential muscle and age effects were observed where the flexors were reduced more at the early phase (nRTD1/6) compared to the extensors, however, for the later phase (nRTD2/3) the young men exhibited a greater reduction compared to the old men. CONCLUSIONS Dissimilar fatigue recovery patterns across different phases of RTD, lower limb muscles, and age groups may have important fatigue-related performance and injury risk implications across the adult lifespan.
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Affiliation(s)
- Brennan J Thompson
- Kinesiology and Health Science Department, Utah State University, 6425 Old Main Hill, Logan, UT, 84322, USA.
- Movement Research Clinic, Sorenson Legacy Foundation Center for Clinical Excellence, Utah State University, Logan, UT, USA.
| | - Eric C Conchola
- Dr. Virginia Peters Department of Kinesiology and Health Studies, University of Central Oklahoma, Edmond, OK, USA
| | - Kimberly A Clevenger
- Kinesiology and Health Science Department, Utah State University, 6425 Old Main Hill, Logan, UT, 84322, USA
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Gaemelke T, Jørgensen MLK, Riemenschneider M, Dalgas U, Hvid LG. The combined deleterious effects of multiple sclerosis and ageing on neuromuscular function. Exp Gerontol 2023; 184:112339. [PMID: 38029888 DOI: 10.1016/j.exger.2023.112339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/03/2023] [Accepted: 11/26/2023] [Indexed: 12/01/2023]
Abstract
BACKGROUND The prevalence of older (>60 years) people with multiple sclerosis (pwMS) is increasing. This introduces numerous challenges, as both MS and ageing independently contribute to the deterioration of neuromuscular function. AIM The aim was to compare the neuromuscular function in pwMS and healthy controls (HC) across three age groups: young, middle-aged, and old. METHODS Using a cross-sectional study design, the maximal muscle strength (Fmax) and rate of force development (RFD) of the knee extensors (KE) and plantar flexors (PF) were assessed using an isokinetic dynamometer. In addition, voluntary activation (VA) and resting twitch (RT) were measured using the interpolated twitch technique. RESULTS The Fmax, RFD, and VA of the KE were reduced in pwMS compared to HC across age groups. In pwMS, reductions were observed in PF Fmax, RFD, and RT, predominantly in the middle-aged and old age groups. Reductions increased with age in KE for both groups (except for VA) but in PF only for pwMS. The "trajectory" differed between pwMS and HC, as pwMS showed reductions from young to middle age, while HC showed reductions from middle to old age in KE. CONCLUSION The combined negative effects of MS and ageing on neuromuscular function were especially present in the PF but also substantial in the KE. RFD showed large deficits for pwMS compared to HC across age groups. The findings can partly be explained by a reduction in VA and RT, but further investigations of neural regulation are needed to explain large RFD deficits.
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Affiliation(s)
- Tobias Gaemelke
- Exercise Biology, Department of Public Health, Aarhus University, Aarhus, Denmark.
| | | | | | - Ulrik Dalgas
- Exercise Biology, Department of Public Health, Aarhus University, Aarhus, Denmark
| | - Lars G Hvid
- Exercise Biology, Department of Public Health, Aarhus University, Aarhus, Denmark; The Danish MS Hospitals, Ry and Haslev, Denmark
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Varesco G, Pageaux B, Cattagni T, Sarcher A, Martinent G, Doron J, Jubeau M. Fatigue in elite fencing: Effects of a simulated competition. Scand J Med Sci Sports 2023; 33:2250-2260. [PMID: 37574844 DOI: 10.1111/sms.14466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 06/25/2023] [Accepted: 08/01/2023] [Indexed: 08/15/2023]
Abstract
The fatigue induced by fencing remains scarcely investigated. We aimed to investigate both objective (neuromuscular performance fatigability) and subjective (perceived fatigue, effort, and workload) manifestations of fatigue in elite fencers following a five-bout simulated competition. Changes in countermovement jump height, knee extensors maximal isometric torque, rate of torque development, voluntary activation, and contractile response to muscular electrical stimulation were measured in 29 elite fencers [12 epee (6 women), 11 saber (5 women), and 6 foil]. Perceived fatigue and effort were evaluated with visual analog scales, and the perceived workload with the NASA Task Load Index scale. During the competition, maximal torque and rate of torque development decreased by 1.6% (p = 0.017) and 2.4% (p < 0.001) per bout, respectively. Perceived fatigue before each bout increased (12% per bout), with similar values observed at the end of all bouts (bout × period interaction: p < 0.001). Perceived effort increased during the bouts (10% per period, p < 0.001) and during the competition (3% per bout, p = 0.011). Perceived mental demand increased during the competition (2% per bout, p = 0.024). These results suggest that elite fencers needed to increase the allocation of mental rather than physical resources to the task to counterbalance the deleterious effect of fatigue on performance.
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Affiliation(s)
- Giorgio Varesco
- Nantes Université, Laboratory Movement - Interactions - Performance (MIP), UR4334, Nantes, France
| | - Benjamin Pageaux
- Université de Montréal, École de kinésiologie et des sciences de l'activité physique (EKSAP), Montréal, Canada
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montréal, Canada
- Centre interdisciplinaire de recherche sur le cerveau et l'apprentissage (CIRCA), Montréal, Canada
| | - Thomas Cattagni
- Nantes Université, Laboratory Movement - Interactions - Performance (MIP), UR4334, Nantes, France
| | - Aurélie Sarcher
- Nantes Université, Laboratory Movement - Interactions - Performance (MIP), UR4334, Nantes, France
| | - Guillaume Martinent
- Université Claude Bernard Lyon 1, Univ Lyon, Laboratory on Vulnerabilities and Innovation in Sport (LVIS), EA 7428, Lyon, France
| | - Julie Doron
- Nantes Université, Laboratory Movement - Interactions - Performance (MIP), UR4334, Nantes, France
| | - Marc Jubeau
- Nantes Université, Laboratory Movement - Interactions - Performance (MIP), UR4334, Nantes, France
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Caparrós-Manosalva C, Garrido-Muñoz N, Alvear-Constanzo B, Sanzana-Laurié S, Artigas-Arias M, Alegría-Molina A, Vidal-Seguel N, Espinoza-Araneda J, Huard N, Pagnussat AS, Sapunar J, Salazar LA, Marzuca-Nassr GN. Effects of high-intensity interval training on lean mass, strength, and power of the lower limbs in healthy old and young people. Front Physiol 2023; 14:1223069. [PMID: 37829114 PMCID: PMC10565117 DOI: 10.3389/fphys.2023.1223069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 08/25/2023] [Indexed: 10/14/2023] Open
Abstract
Introduction: Whether high-intensity interval training (HIIT) can improve lean mass, strength, and power of the lower limbs in young and older people is still under discussion. This study aimed to determine the effect of HIIT on lean mass, maximal strength, rate of force development (RFD), and muscle power of both lower limbs in healthy young and older adults. Secondarily, to compare the effects of HIIT between dominant vs. non-dominant lower limbs of each group. Materials and methods: Healthy older (n = 9; 66 ± 6 years; BMI 27.1 ± 3.1 kg m-2) and young (n = 9; 21 ± 1 years; BMI 26.2 ± 2.8 kg m-2) men underwent 12 weeks of HIIT (3x/week) on a stationary bicycle. The evaluations were made before and after the HIIT program by dual energy X-ray absorptiometry (DEXA), anthropometry, force transducer and, Sit-to-Stand test. The outcomes analyzed were limb lean mass, thigh circumference, maximal voluntary isometric strength, RFD (Time intervals: 0-50, 50-100, 100-200, and 0-200 ms), and muscle power in both lower limbs. Results: After 12 weeks of HIIT, non-dominant limb (NDL) showed increase in limb lean mass (p < 0.05) but without interaction (time*group). HIIT showed a gain in absolute maximal strength and also when adjusted for thigh circumference in the dominant lower limb (DL) in both groups. The RFD0-200 ms showed differences between groups but without interaction. The RFD0-50 ms of the NDL showed post-training improvements (p < 0.05) in both groups. Only the older group showed differences between DL vs. NDL in most of the RFD obtained post-intervention. In addition, post-HIIT muscle power gain was observed in both groups (p < 0.05), but mainly in older adults. Conclusion: HIIT promotes increases in lean mass, maximal strength, early RFD, and lower limb muscle power in healthy older and young individuals. The differences shown between the DL and the NDL must be analyzed in future studies.
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Affiliation(s)
- Cristian Caparrós-Manosalva
- Department of Human Movement Sciences, Faculty of Health Sciences, University of Talca, Talca, Chile
- Rehabilitation Sciences Graduate Program, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Brazil
- Interuniversity Center for Healthy Aging, Talca, Chile
| | - Nicolás Garrido-Muñoz
- Interuniversity Center for Healthy Aging, Talca, Chile
- Universidad de La Frontera, Facultad de Medicina, Departamento de Ciencias de la Rehabilitación, Temuco, Chile
| | - Bastián Alvear-Constanzo
- Interuniversity Center for Healthy Aging, Talca, Chile
- Universidad de La Frontera, Facultad de Medicina, Departamento de Ciencias de la Rehabilitación, Temuco, Chile
| | - Sofía Sanzana-Laurié
- Interuniversity Center for Healthy Aging, Talca, Chile
- Universidad de La Frontera, Facultad de Medicina, Departamento de Ciencias de la Rehabilitación, Temuco, Chile
| | - Macarena Artigas-Arias
- Interuniversity Center for Healthy Aging, Talca, Chile
- Universidad de La Frontera, Facultad de Medicina, Departamento de Ciencias de la Rehabilitación, Temuco, Chile
- Universidad de La Frontera, Facultad de Ciencias Agropecuarias y Medioambiente, Doctorado en Ciencias Mención Biología Celular y Molecular Aplicada, Temuco, Chile
| | - Andrea Alegría-Molina
- Interuniversity Center for Healthy Aging, Talca, Chile
- Universidad de La Frontera, Facultad de Medicina, Departamento de Ciencias de la Rehabilitación, Temuco, Chile
| | - Nicolás Vidal-Seguel
- Interuniversity Center for Healthy Aging, Talca, Chile
- Universidad de La Frontera, Facultad de Medicina, Departamento de Ciencias de Ciencias Básicas, Temuco, Chile
- Universidad de La Frontera, Facultad de Medicina, Doctorado en Ciencias Morfológicas, Temuco, Chile
| | - Jessica Espinoza-Araneda
- Department of Human Movement Sciences, Faculty of Health Sciences, University of Talca, Talca, Chile
- Rehabilitation Sciences Graduate Program, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Brazil
- Interuniversity Center for Healthy Aging, Talca, Chile
| | - Nolberto Huard
- Universidad de La Frontera, Facultad de Medicina, Departamento de Ciencias Básicas, Centro de Biología Molecular y Farmacogenética, Temuco, Chile
| | - Aline Souza Pagnussat
- Rehabilitation Sciences Graduate Program, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Brazil
- Department of Physical Therapy, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
- Department of Physical Therapy, Georgia State University, Atlanta, GA, United States
| | - Jorge Sapunar
- Universidad de La Frontera, Facultad de Medicina, Departamento de Medicina Interna, Temuco, Chile
| | - Luis A. Salazar
- Universidad de La Frontera, Facultad de Medicina, Departamento de Ciencias Básicas, Centro de Biología Molecular y Farmacogenética, Temuco, Chile
| | - Gabriel Nasri Marzuca-Nassr
- Interuniversity Center for Healthy Aging, Talca, Chile
- Universidad de La Frontera, Facultad de Medicina, Departamento de Ciencias de la Rehabilitación, Temuco, Chile
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D'Emanuele S, Tarperi C, Rainoldi A, Schena F, Boccia G. Neural and contractile determinants of burst-like explosive isometric contractions of the knee extensors. Scand J Med Sci Sports 2023; 33:127-135. [PMID: 36229231 PMCID: PMC10099358 DOI: 10.1111/sms.14244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/19/2022] [Accepted: 10/05/2022] [Indexed: 01/11/2023]
Abstract
Walking and running are based on rapid burst-like muscle contractions. Burst-like contractions generate a Gaussian-shaped force profile, in which neuromuscular determinants have never been assessed. We investigated the neural and contractile determinants of the rate of force development (RFD) in burst-like isometric knee extensions. Together with maximal voluntary force (MVF), voluntary and electrically evoked (8 stimuli at 300 Hz, octets) forces were measured in the first 50, 100, and 150 ms of burst-like quadriceps contractions in 24 adults. High-density surface electromyography (HDsEMG) was adopted to measure the root mean square (RMS) and muscle fiber conduction velocity (MFCV) from the vastus lateralis and medialis. The determinants of voluntary force at 50, 100, and 150 ms were assessed by stepwise multiple regression analysis. Force at 50 ms was explained by RMS (R2 = 0.361); force at 100 ms was explained by octet (R2 = 0.646); force at 150 ms was explained by MVF (R2 = 0.711) and octet (R2 = 0.061). Peak RFD (which occurred at 60 ± 10 ms from contraction onset) was explained by MVF (R2 = 0.518) and by RMS50 (R2 = 0.074). MFCV did not emerge as a determinant of RFD. Muscle excitation was the sole determinant of early RFD (50 ms), while contractile characteristics were more relevant for late RFD (≥100 ms). As peak RFD is mostly determined by MVF, it may not be more informative than MVF itself. Therefore, a time-locked analysis of RFD provides more insights into the neuromuscular characteristics of explosive contractions.
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Affiliation(s)
- Samuel D'Emanuele
- School of Sport and Exercise Sciences, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Cantor Tarperi
- School of Sport and Exercise Sciences, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.,Neuromuscular Function Research Group, Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | - Alberto Rainoldi
- Neuromuscular Function Research Group, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Federico Schena
- School of Sport and Exercise Sciences, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Gennaro Boccia
- Neuromuscular Function Research Group, Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
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9
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Varesco G, Coratella G, Rozand V, Cuinet B, Lombardi G, Mourot L, Vernillo G. Downhill running affects the late but not the early phase of the rate of force development. Eur J Appl Physiol 2022; 122:2049-2059. [PMID: 35790580 PMCID: PMC9381441 DOI: 10.1007/s00421-022-04990-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 05/11/2022] [Indexed: 11/25/2022]
Abstract
Purpose This study aimed to evaluate the acute changes in the knee extensors maximum voluntary isometric contraction force (MVIC), rate of force development (RFD), and rate of EMG rise (RER) following a bout of downhill running. Methods MVIC and RFD at 0–50, 50–100, 100–200, and 0–200 ms were determined in thirteen men (22 ± 2 yr) before and after 30 min of downhill running (speed: 10 km h−1; slope: − 20%). Vastus lateralis maximum EMG (EMGmax) and RER at 0–30, 0–50, and 0–75 ms were also recorded. Results MVIC, RFD0–200, and EMGmax decreased by ~ 25% [Cohen’s d = − 1.09 (95% confidence interval: − 1.88/− 0.24)], ~ 15% [d = − 0.50 (− 1.26/0.30)], and ~ 22% [d = − 0.37 (− 1.13/0.42)] (all P < 0.05), respectively. RFD100–200 was also reduced [− 25%; d = − 0.70 (− 1.47/0.11); P < 0.001]. No change was observed at 0–50 ms and 50–100 ms (P ≥ 0.05). RER values were similar at each time interval (all P > 0.05). Conclusion Downhill running impairs the muscle capacity to produce maximum force and the overall ability to rapidly develop force. No change was observed for the early phase of the RFD and the absolute RER, suggesting no alterations in the neural mechanisms underlying RFD. RFD100–200 reduction suggests that impairments in the rapid force-generating capacity are located within the skeletal muscle, likely due to a reduction in muscle–tendon stiffness and/or impairments in the muscle contractile apparatus. These findings may help explain evidence of neuromuscular alterations in trail runners and following prolonged duration races wherein cumulative eccentric loading is high.
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Affiliation(s)
- Giorgio Varesco
- Inter-University Laboratory of Human Movement Biology (EA 7424), UJM-Saint-Etienne, Université de Lyon, 42023, Saint-Etienne, France
| | - Giuseppe Coratella
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Building 2, via G. Colombo 71, 20133, Milan, Italy
| | - Vianney Rozand
- Inter-University Laboratory of Human Movement Biology (EA 7424), UJM-Saint-Etienne, Université de Lyon, 42023, Saint-Etienne, France
| | - Benjamin Cuinet
- Prognostic Factors and Regulatory Factors of Cardiac and Vascular Pathologies (EA3920), Exercise Performance Health Innovation (EPHI) Platform, University of Bourgogne Franche-Comté, 25000, Besançon, France
| | - Giovanni Lombardi
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Orthopedic Institute Galeazzi, 20161, Milan, Italy.,Department of Athletics, Strength and Conditioning, Poznań University of Physical Education, 61-871, Poznań, Poland
| | - Laurent Mourot
- Prognostic Factors and Regulatory Factors of Cardiac and Vascular Pathologies (EA3920), Exercise Performance Health Innovation (EPHI) Platform, University of Bourgogne Franche-Comté, 25000, Besançon, France.,Division for Physical Education, Tomsk Polytechnic University, Tomsk Oblast, 634050, Russia
| | - Gianluca Vernillo
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Building 2, via G. Colombo 71, 20133, Milan, Italy.
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10
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Kennouche D, Varesco G, Espeit L, Féasson L, Souron R, Rozand V, Millet GY, Lapole T. Acute effects of quadriceps muscle versus tendon prolonged local vibration on force production capacities and central nervous system excitability. Eur J Appl Physiol 2022; 122:2451-2461. [PMID: 36001143 DOI: 10.1007/s00421-022-05028-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 08/17/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE The present study aimed to directly compare the effects of 30 min muscle (VIBmuscle) vs. tendon (VIBtendon) local vibration (LV) to the quadriceps on maximal voluntary isometric contraction (MVIC) and rate of torque development (RTD) as well as on central nervous system excitability (i.e. motoneuron and cortical excitability). METHODS Before (PRE) and immediately after (POST) LV applied to the quadriceps muscle or its tendon, we investigated MVIC and RTD (STUDY #1; n = 20) or vastus lateralis (VL), vastus medialis (VM) and rectus femoris (RF) electromyography responses to thoracic electrical stimulation (TMEPs; motoneuron excitability) and transcranial magnetic stimulation (MEPs; corticospinal excitability) (STUDY #2; n = 17). MEP/TMEP ratios were further calculated to quantify changes in cortical excitability. RESULTS MVIC decreased at POST (P = 0.017) without any difference between VIBtendon and VIBmuscle, while RTD decreased for VIBtendon (P = 0.013) but not VIBmuscle. TMEP amplitudes were significantly decreased for all muscles (P = 0.014, P < 0.001 and P = 0.004 for VL, VM and RF, respectively) for both LV sites. While no changes were observed for MEP amplitude, MEP/TMEP ratios increased at POST for VM and RF muscles (P = 0.009 and P = 0.013, respectively) for both VIBtendon and VIBmuscle. CONCLUSION The present results suggest that prolonged muscle and tendon LV are similarly effective in modulating central nervous system excitability and decreasing maximal force. Yet, altered explosive performance after tendon but not muscle LV suggests greater neural alterations when tendons are vibrated.
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Affiliation(s)
- Djahid Kennouche
- Univ Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023, Saint-Etienne, France
| | - Giorgio Varesco
- Univ Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023, Saint-Etienne, France
| | - Loïc Espeit
- Univ Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023, Saint-Etienne, France
| | - Léonard Féasson
- Univ Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023, Saint-Etienne, France.,Unité de Myologie, Centre Référent Maladies Neuromusculaires - Euro-NMD, Centre Hospitalier Universitaire de Saint-Etienne, 42055, Saint Etienne, France
| | - Robin Souron
- Univ Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023, Saint-Etienne, France.,UFR STAPS de Toulon, Unité de Recherche IAPS (N°201723207F), UFR STAPS de Toulon, Toulon, France
| | - Vianney Rozand
- Univ Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023, Saint-Etienne, France
| | - Guillaume Y Millet
- Univ Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023, Saint-Etienne, France.,Institut Universitaire de France (IUF), Paris, France
| | - Thomas Lapole
- Univ Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023, Saint-Etienne, France.
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11
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Daniels RJ, Knight CA. Rates of neuromuscular excitation during cycling in Parkinson's disease compared to healthy young and older adults. Clin Biomech (Bristol, Avon) 2021; 90:105488. [PMID: 34571487 DOI: 10.1016/j.clinbiomech.2021.105488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 09/08/2021] [Accepted: 09/14/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Bradykinesia affects mobility in some people with Parkinson's. Fall risk makes the neural control of maximal speed ambulatory movements difficult to study in Parkinson's. Stationary recumbent bicycling favors the use of electromyography at high movement speeds, and may better reveal neuromuscular rate limiters. METHODS Subjects were 18 adults with Parkinson's, 14 older adults and 14 young adults. Electromyograms were recorded from two muscles during stationary recumbent bicycling at 60, 80, 100, 120 RPM and peak voluntary cadence. Rate of electromyogram rise was calculated. Subjects performed the timed up and go and four square step test. Parkinson's sub-groups were formed based on whether they could pedal ≥120 RPM. Mixed models were used to compare groups and spearman's correlations quantified relationships. FINDINGS Eight people with Parkinson's and four older adults could not complete the 120 RPM condition. Faster people with Parkinson's (n = 10) had greater maximum cadence (F = 42.85, P < 0.05), higher rates of electromyogram rise in both muscles (F > 16.9, P < 0.05), and faster mobility test times (F > 6.5, P < 0.05) than slower people with Parkinson's (n = 8). In Parkinson's, correlations between vastus lateralis rate of electromyogram rise and four square step test (ρ = -0.62), timed up and go (ρ = -0.53), and peak cadence (ρ = 0.76) were significant (all P < 0.05). INTERPRETATION People with Parkinson's with slower peak pedaling cadence had slower mobility performance and lower vastus lateralis excitation rates at higher cadences. Vastus lateralis excitation rates had moderate to strong relationships with peak cadence and mobility. Exercise interventions may seek to improve peak cadence or excitation rates in people with Parkinson's.
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12
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Coulondre C, Souron R, Rambaud A, Dalmais É, Espeit L, Neri T, Pinaroli A, Estour G, Millet GY, Rupp T, Feasson L, Edouard P, Lapole T. Local vibration training improves the recovery of quadriceps strength in early rehabilitation after anterior cruciate ligament reconstruction: A feasibility randomised controlled trial. Ann Phys Rehabil Med 2021; 65:101441. [PMID: 33059096 DOI: 10.1016/j.rehab.2020.08.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 07/13/2020] [Accepted: 08/10/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND After anterior cruciate ligament reconstruction (ACLR), quadriceps strength must be maximised as early as possible. OBJECTIVES We tested whether local vibration training (LVT) during the early post-ACLR period (i.e., ∼10 weeks) could improve strength recovery. METHODS This was a multicentric, open, parallel-group, randomised controlled trial. Thirty individuals attending ACLR were randomised by use of a dedicated Web application to 2 groups: vibration (standardised rehabilitation plus LVT, n=16) or control (standardised rehabilitation alone, n=14). Experimenters, physiotherapists and participants were not blinded. Both groups received 24 sessions of standardised rehabilitation over ∼10 weeks. In addition, the vibration group received 1 hour of vibration applied to the relaxed quadriceps of the injured leg at the end of each rehabilitation session. The primary outcome - maximal isometric strength of both injured and non-injured legs (i.e., allowing for limb asymmetry measurement) - was evaluated before ACLR (PRE) and after the 10-week rehabilitation (POST). RESULTS Seven participants were lost to follow-up, so data for 23 participants were used in the complete-case analysis. For the injured leg, the mean (SD) decrease in maximal strength from PRE to POST was significantly lower for the vibration than control group (n=11, -16% [10] vs. n=12, -30% [11]; P=0.0045, Cohen's d effect size=1.33). Mean PRE-POST change in limb symmetry was lower for the vibration than control group (-19% [11] vs. -29% [13]) but not significantly (P=0.051, Cohen's d effect size=0.85). CONCLUSION LVT improved strength recovery after ACLR. This feasibility study suggests that LVT applied to relaxed muscles is a promising modality of vibration therapy that could be implemented early in ACLR. TRIAL REGISTRATION ClinicalTrials.gov: NCT02929004.
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Affiliation(s)
- Claire Coulondre
- Inter-university laboratory of human movement biology (LIBM), University of Savoie-Mont Blanc, EA 7424, 73000 Chambéry, France; Centre d'évaluation et de prévention articulaire (CEPART), 73490 Challes-les-Eaux, France; Centre d'orthopédie et de traumatologie du sport, 73000 Bassens, France
| | - Robin Souron
- Université de Lyon, UJM-Saint-Étienne, Inter-university laboratory of human movement biology, EA 7424, 42023 Saint-Étienne, France; Laboratory of impact of physical activity on health (IAPS), UR n(o)201723207F, University of Toulon, Toulon, France
| | - Alexandre Rambaud
- Université de Lyon, UJM-Saint-Étienne, Inter-university laboratory of human movement biology, EA 7424, 42023 Saint-Étienne, France
| | - Étienne Dalmais
- Inter-university laboratory of human movement biology (LIBM), University of Savoie-Mont Blanc, EA 7424, 73000 Chambéry, France; Centre d'évaluation et de prévention articulaire (CEPART), 73490 Challes-les-Eaux, France; Centre d'orthopédie et de traumatologie du sport, 73000 Bassens, France
| | - Loïc Espeit
- Université de Lyon, UJM-Saint-Étienne, Inter-university laboratory of human movement biology, EA 7424, 42023 Saint-Étienne, France
| | - Thomas Neri
- Université de Lyon, UJM-Saint-Étienne, Inter-university laboratory of human movement biology, EA 7424, 42023 Saint-Étienne, France; Department of orthopaedic surgery, university hospital of Saint Étienne, Faculty of medicine, Saint-Étienne, France
| | | | | | - Guillaume Y Millet
- Université de Lyon, UJM-Saint-Étienne, Inter-university laboratory of human movement biology, EA 7424, 42023 Saint-Étienne, France; Institut universitaire de France (IUF), France
| | - Thomas Rupp
- Inter-university laboratory of human movement biology (LIBM), University of Savoie-Mont Blanc, EA 7424, 73000 Chambéry, France
| | - Léonard Feasson
- Université de Lyon, UJM-Saint-Étienne, Inter-university laboratory of human movement biology, EA 7424, 42023 Saint-Étienne, France; Department of clinical and exercise physiology, sports medicine and myology units, regional institute of medicine and sports engineering (IRMIS), University hospital of Saint-Étienne, Faculty of medicine, Saint-Étienne, France
| | - Pascal Edouard
- Université de Lyon, UJM-Saint-Étienne, Inter-university laboratory of human movement biology, EA 7424, 42023 Saint-Étienne, France; Department of clinical and exercise physiology, sports medicine and myology units, regional institute of medicine and sports engineering (IRMIS), University hospital of Saint-Étienne, Faculty of medicine, Saint-Étienne, France
| | - Thomas Lapole
- Université de Lyon, UJM-Saint-Étienne, Inter-university laboratory of human movement biology, EA 7424, 42023 Saint-Étienne, France.
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13
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Magrini MA, Colquhoun RJ, Ferrell MC, Fleming SR, Mota JA, Siedlik JA, Poidomani NM, Jenkins NDM, DeFreitas JM. The Influence of Motor Unit Number and Muscle Activation on Early Phase Rate of Torque Development in Younger and Older Men. J Mot Behav 2021; 54:422-428. [PMID: 34763617 DOI: 10.1080/00222895.2021.2001412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
This study examined the influence of muscle activation and motor unit number estimation (MUNE) on early phase voluntary rate of torque development (RTD) in younger (YM) and older (OM) men. Thirty-two YM (n = 17; Age = 22 yrs) and OM (n = 15; Age = 74 yrs) volunteered to participate in this study. Early phase RTD (first 50 ms of a rapid isometric contraction; RTD50) and normalized surface electromyography (first 50 ms of muscle excitation; nEMG50) were recorded from the right quadricep muscle group. MUNE was examined from the right vastus lateralis. Multiple linear regression analyses revealed that nEMG50 had a significant effect on RTD50 independent of age group (p ≤ 0.001). nEMG50 had a significant effect on RTD50 in the OM group (p = 0.037). MUNE had no effect on RTD50 independent of age. Older adults may depend more on muscle activation at contraction onset of early phase RTD compared to younger adults.
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Affiliation(s)
| | | | - Matt C Ferrell
- Oklahoma State University Center for Health Sciences, Tulsa, OK, USA
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14
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Gollie JM, Harris-Love MO, Patel SS, Shara NM, Blackman MR. Rate of Force Development Is Related to Maximal Force and Sit-to-Stand Performance in Men With Stages 3b and 4 Chronic Kidney Disease. FRONTIERS IN REHABILITATION SCIENCES 2021; 2. [PMID: 34708217 PMCID: PMC8547335 DOI: 10.3389/fresc.2021.734705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Introduction: The primary aims of the present study were to assess the relationships of early (0–50 ms) and late (100–200 ms) knee extensor rate of force development (RFD) with maximal voluntary force (MVF) and sit-to-stand (STS) performance in participants with chronic kidney disease (CKD) not requiring dialysis. Methods: Thirteen men with CKD (eGFR = 35.17 ±.5 ml/min per 1.73 m2, age = 70.56 ±.4 years) and 12 non-CKD men (REF) (eGFR = 80.31 ± 4.8 ml/min per 1.73 m2, age = 70.22 ±.9 years) performed maximal voluntary isometric contractions to determine MVF and RFD of the knee extensors. RFD was measured at time intervals 0–50 ms (RFD0−50) and 100–200 ms (RFD100−200). STS was measured as the time to complete five repetitions. Measures of rectus femoris grayscale (RF GSL) and muscle thickness (RF MT) were obtained via ultrasonography in the CKD group only. Standardized mean differences (SMD) were used to examine differences between groups. Bivariate relationships were assessed by Pearson's product moment correlation. Results: Knee extensor MVF adjusted for body weight (CKD=17.14 ±.1 N·kg0.67, REF=21.55 ±.3 N·kg0.67, SMD = 0.79) and STS time (CKD = 15.93 ±.4 s, REF = 12.23 ±.7 s, SMD = 1.03) were lower in the CKD group than the REF group. Absolute RFD100−200 was significantly directly related to adjusted MVF in CKD (r = 0.56, p = 0.049) and REF (r = 0.70, p = 0.012), respectively. STS time was significantly inversely related to absolute (r = −0.75, p = 0.008) and relative RFD0−50 (r = −0.65, p = 0.030) in CKD but not REF (r = 0.08, p = 0.797; r = 0.004, p = 0.991). Significant inverse relationships between RF GSL adjusted for adipose tissue thickness and absolute RFD100−200 (r =−0.59, p = 0.042) in CKD were observed. Conclusion: The results of the current study highlight the declines in strength and physical function that occur in older men with CKD stages 3b and 4 not requiring dialysis. Moreover, early RFD was associated with STS time in CKD while late RFD was associated MVF in both CKD and REF. Clinical Trial Registration: ClinicalTrials.gov, identifier: NCT03160326 and NCT02277236.
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Affiliation(s)
- Jared M Gollie
- Skeletal Muscle Laboratory, Research Service, Washington, DC, United States.,George Washington University, Health, Human Function, and Rehabilitation Sciences, Washington, DC, United States.,George Mason University, Rehabilitation Science, Fairfax, VA, United States
| | - Michael O Harris-Love
- Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora, CO, United States.,Muscle Morphology, Mechanics and Performance Laboratory, Eastern Colorado VA Geriatric Research Education and Clinical Center, Aurora, CO, United States
| | - Samir S Patel
- Renal Service, Washington DC VAMC, Washington, DC, United States.,Department of Medicine, George Washington University, Washington, DC, United States
| | - Nawar M Shara
- Department of Biostatistics and Biomedical Informatics, MedStar Health Research Institute, Washington, DC, United States
| | - Marc R Blackman
- Department of Medicine, George Washington University, Washington, DC, United States.,Research Service, Washington DC VAMC, Washington, DC, United States.,Departments of Medicine and Rehabilitation Medicine, Georgetown University, Washington, DC, United States
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15
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Tavakkoli Oskouei S, Malliaras P, D Hill K, Garofolini A, Clark R, Perraton L. Assessment of ankle plantar flexor neuromuscular properties: A reliability study. J Electromyogr Kinesiol 2021; 61:102603. [PMID: 34563759 DOI: 10.1016/j.jelekin.2021.102603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 08/29/2021] [Accepted: 09/15/2021] [Indexed: 10/20/2022] Open
Abstract
This study aimed to determine test-retest reliability of ankle plantar flexor neuromuscular properties in healthy people to improve understanding of additional measurement and analysis procedures that may be used in outcome assessment. Ten healthy participants (age 29.60 ± 5.36 years) volunteered. Isometric torquemax, rate of torque development (RTD), rate of electromyography rise (RER), impulse, electromechanical delay (EMD), torque steadiness, and torque sensing were obtained during two testing sessions 60 min apart. ICC values ranged from 0.81 to 0.99, indicating good to excellent test-retest reliability. Lower bands of the 95% CIs were all above 0.75 apart from the early phase measures (≤50 ms) derived from explosive torque-time and EMG-time curves, which were between 0.32 and 0.73, indicating poor to moderate reliability. Heteroscedasticity was observed for RTD, impulse, and EMD. LOA as a function of the mean (X̅) for these measures ranged from meandifference ± 0.25X̅ to ± 0.68X̅. EMD showed excellent reliability (ICC = 0.90; 95% CI [0.63, 0.98]). Torque sensing and torque steadiness showed good reliability (0.81 ≤ ICC ≤ 0.89). Thus, ankle plantar flexor neuromuscular properties showed good to excellent test-retest reliability. However, reliability of measures in the early phase of muscle contraction were consistently lower than the late phase.
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Affiliation(s)
- Sanam Tavakkoli Oskouei
- Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Sciences, Monash University, Victoria, Australia.
| | - Peter Malliaras
- Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Sciences, Monash University, Victoria, Australia
| | - Keith D Hill
- Ageing and Independent Living (RAIL) Research Centre, Monash University, Victoria, Australia
| | | | - Ross Clark
- School of Health and Behavioural Sciences, University of the Sunshine Coast, Queensland, Australia
| | - Luke Perraton
- Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Sciences, Monash University, Victoria, Australia
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16
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Varesco G, Coudy-Gandilhon C, Lapole T, Decourt A, Gueugneau M, Barthélémy JC, Roche F, Bechet D, Féasson L, Rozand V. Association between physical activity, quadriceps muscle performance and biological characteristics of very old men and women. J Gerontol A Biol Sci Med Sci 2021; 77:47-54. [PMID: 34406381 DOI: 10.1093/gerona/glab239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Indexed: 01/23/2023] Open
Abstract
The present study aimed to evaluate the association between physical activity, knee extensors (KE) performance (i.e. isometric strength and fatigability) and biological parameters (i.e. muscle structural, microvascular and metabolic properties) in healthy very old men and women. Thirty very old adults (82±1 yr, 15 women) performed an isometric quadriceps intermittent fatigue (QIF) test for the assessment of KE maximal force, total work (index of absolute performance) and fatigability. Muscle biopsies from the vastus lateralis muscle were collected to assess muscle fibers type and morphology, microvasculature and enzymes activity. Correlation analyses were used to investigate the relationships between physical activity (steps.day -1, actimetry), KE performance, and biological data for each sex separately.Men, compared to women, showed greater total work at the QIF test (44497±8629 N.s vs. 26946±4707 N.s; P<0.001). Steps.day -1 were correlated with total work only for women (r=0.73, P=0.011). In men, steps.day -1 were correlated with the percentage (r=0.57, P=0.033), shape factor (r=0.75, P = 0.002) and capillary tortuosity of type IIX fibers (r=0.59, P=0.035). No other relevant correlations were observed for men or women between steps.day -1 and biological parameters. Physical activity level was positively associated with the capacity of very old women to perform a fatiguing test, but not maximal force production capacity of the KE. Physical activity of very old men was not correlated with muscle performance. We suggest that very old women could be at higher risk of autonomy loss and increasing the steps.day -1 count could provide a sufficient stimulus for adaptations in less active women.
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Affiliation(s)
- Giorgio Varesco
- Université de Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, Saint-Etienne, France
| | - Cécile Coudy-Gandilhon
- Université Clermont Auvergne, INRAE, Unité de Nutrition Humaine, CRNH Auvergne, Clermont-Ferrand, France
| | - Thomas Lapole
- Université de Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, Saint-Etienne, France
| | - Alice Decourt
- Université Clermont Auvergne, INRAE, Unité de Nutrition Humaine, CRNH Auvergne, Clermont-Ferrand, France
| | - Marine Gueugneau
- Université Clermont Auvergne, INRAE, Unité de Nutrition Humaine, CRNH Auvergne, Clermont-Ferrand, France
| | | | - Frédéric Roche
- Université de Lyon, UJM-Saint-Etienne, Laboratoire SNA-EPIS, Saint-Etienne, France
| | - Daniel Bechet
- Université Clermont Auvergne, INRAE, Unité de Nutrition Humaine, CRNH Auvergne, Clermont-Ferrand, France
| | - Léonard Féasson
- Université de Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, Saint-Etienne, France.,Unité de Myologie, Service de Physiologie Clinique et de l'Exercice, Centre Référent Maladies Neuromusculaires Euro-NmD, CHU de Saint-Etienne, France
| | - Vianney Rozand
- Université de Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, Saint-Etienne, France
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17
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Varesco G, Royer N, Singh B, Parent A, Féasson L, Lapole T, Millet GY, Rozand V. Reliability and agreement of a dynamic quadriceps incremental test for the assessment of neuromuscular function. J Electromyogr Kinesiol 2020; 56:102503. [PMID: 33248368 DOI: 10.1016/j.jelekin.2020.102503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 10/22/2022] Open
Abstract
The quadriceps-intermittent-fatigue (QIF) test assesses knee extensors strength, endurance and performance fatigability in isometric condition. We aimed to assess reliability and agreement for this test in dynamic conditions and with the use of transcranial magnetic stimulation. On two separate sessions, 20 young adults (25 ± 4 yr, 10 women) performed stages of 100 knee extensors concentric contractions at 120°/s (60° range-of-motion) with 10% increments of the initial maximal concentric torque until exhaustion. Performance fatigability across the test was quantified as maximal isometric and concentric torque loss, and its mechanisms were investigated through the responses to transcranial magnetic and electrical stimulations. Reliability and agreement were assessed using ANOVAs, coefficients of variation (CVs) and intra-class correlation coefficients (ICCs) with 95% CI. Good inter-session reliability and high agreement were found for number of contractions [489 ± 75 vs. 503 ± 95; P = 0.20; ICC = 0.85 (0.66; 0.94); CV = 5% (3; 7)] and total work [11,285 ± 4,932 vs. 11,792 ± 5838 Nm.s; P = 0.20; ICC = 0.95 (0.87; 0.98); CV = 8% (5; 11)]. Poor reliability but high agreement were observed for isometric [-33 ± 6 vs. -31 ± 7%; P = 0.13; ICC = 0.47 (0.05; 0.75); CV = 6% (4;8)] and concentric [-20 ± 11% vs. -19 ± 9%; P = 0.82; ICC = 0.26 (-0.22; 0.63); CV = 9% (6; 12)] torque loss. The dynamic QIF test represents a promising tool for neuromuscular evaluation in isokinetic mode.
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Affiliation(s)
- Giorgio Varesco
- Université de Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023 Saint-Etienne, France.
| | - Nicolas Royer
- Université de Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023 Saint-Etienne, France
| | - Benjamin Singh
- Université de Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023 Saint-Etienne, France
| | - Audrey Parent
- Université du Québec à Montréal (UQAM), Montréal, Canada
| | - Léonard Féasson
- Université de Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023 Saint-Etienne, France; Unité de Myologie, Service de Physiologie Clinique et de l'Exercice, Centre Référent Maladies Neuromusculaires Euro-NmD, CHU de Saint-Etienne, France
| | - Thomas Lapole
- Université de Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023 Saint-Etienne, France
| | - Guillaume Y Millet
- Université de Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023 Saint-Etienne, France; Institut Universitaire de France (IUF) , France
| | - Vianney Rozand
- Université de Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-42023 Saint-Etienne, France
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Rodriguez-Lopez C, Alcazar J, Sánchez-Martín C, Ara I, Csapo R, Alegre LM. Mechanical Characteristics of Heavy vs. Light Load Ballistic Resistance Training in Older Adults. J Strength Cond Res 2020; 36:2094-2101. [PMID: 32947572 DOI: 10.1519/jsc.0000000000003826] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Rodriguez-Lopez, C, Alcazar, J, Sánchez-Martín, C, Ara, I, Csapo, R, and Alegre, LM. Mechanical characteristics in heavy vs. light load ballistic resistance training in older adults. J Strength Cond Res XX(X): 000-000, 2020-Although power-oriented resistance training (RT) is strongly recommended to counter age-related neuromuscular function declines, there is still controversy about which intensities of load should be used to elicit optimal training adaptations. Knowledge of the mechanical characteristics of power-oriented RT performed at different intensities might help to better understand the training stimulus that triggers load-dependent adaptations in older adults. Using a cross-over design, 15 well-functioning older volunteers (9 men and 6 women; 73.6 ± 3.8 years) completed 2 volume × load-matched ballistic RT sessions with heavy (HL: 6 × 6 × 80% 1-repetition maximum [1RM]) and light-load (LL: 6 × 12 × 40% 1RM) on a horizontal leg press exercise. Electromyographic (EMG) and mechanical variables (work, force, velocity, and power) as well as intraset neuromuscular fatigue (i.e., relative losses in force, velocity, and power) were analyzed. More concentric mechanical work was performed in the LL training session, compared with HL (36.2 ± 11.2%; p < 0.001). Despite the higher mean EMG activity of the quadriceps femoris muscle (13.2 ± 21.1%; p = 0.038) and greater concentric force (35.2 ± 7.6%; p < 0.001) during HL, higher concentric velocity (41.0 ± 12.7%, p < 0.001) and a trend toward higher concentric power (7.2 ± 18.9%, p = 0.075) were found for LL. Relative velocity losses were similar in both sessions (≈10%); however, relative force losses were only found in LL (7.4 ± 6.5%, p = 0.003). Considering the greater mechanical work performed and concentric power generated, ballistic RT using LL may, therefore, represent a stronger stimulus driving training adaptations as compared with volume × load-matched heavy-load training. Relative losses in force and power should be monitored in addition to velocity losses during ballistic RT.
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Affiliation(s)
- Carlos Rodriguez-Lopez
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, Toledo, Spain.,CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain
| | - Julian Alcazar
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, Toledo, Spain.,CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain
| | - Coral Sánchez-Martín
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, Toledo, Spain.,CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain
| | - Ignacio Ara
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, Toledo, Spain.,CIBER of Frailty and Healthy Aging (CIBERFES), Madrid, Spain
| | - Robert Csapo
- Research Unit for Orthopaedic Sports Medicine and Injury Prevention, ISAG, University for Health Sciences, Medical Informatics and Technology, Hall, Austria
| | - 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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