期刊论文详细信息
PeerJ
Effect of sit-to-stand-based training on muscle quality in sedentary adults: a randomized controlled trial
article
Rodrigo Lizama-Pérez1  Luis Javier Chirosa-Ríos1  Guido Contreras-Díaz3  Daniel Jerez-Mayorga1  Daniel Jiménez-Lupión1  Ignacio Jesús Chirosa-Ríos1 
[1] Department of Physical Education and Sports, University of Granada;Departamento de Ciencias Morfológicas, Facultad de Medicina y Ciencia, Universidad San Sebastián;Department of Health, University of Los Lagos;Exercise and Rehabilitation Sciences Institute, School of Physical Therapy, Faculty of Rehabilitation Sciences, Universidad Andres Bello
关键词: Muscle power;    Sarcopenia;    Muscle quality index;    Chair stand;    Muscle architecture;   
DOI  :  10.7717/peerj.15665
学科分类:社会科学、人文和艺术(综合)
来源: Inra
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【 摘 要 】

The aim of this study was to compare the effects of sit-to-stand (STS) training programs with 5 vs. 10 repetitions on muscle architecture and muscle function in sedentary adults. Sixty participants were randomly assigned into three groups: five-repetition STS (5STS), 10-repetition STS (10STS), or a control group (CG). Participants performed three sets of five or 10 repetitions of the STS exercise three times per week for 8 weeks. Before and after 8 weeks, all groups performed ultrasound measures to evaluate muscle thickness (MT), pennation angle (PA), and fascicle length (FL), and the five-repetition STS test to estimate the relative STS power and muscle quality index (MQI). After 8 weeks, both experimental groups improved MQI (40–45%), relative STS power (29–38%), and MT (8–9%) (all p < 0.001; no differences between the 5STS vs. 10STS groups). These improvements in both groups resulted in differences regarding the CG, which did not present any change. In addition, only the 5STS group improved PA (15%; p = 0.008) without differences to the 10STS and CG.This suggests that STS training is time-effective and low-cost for improving muscle function and generating adaptations in muscle architecture.

【 授权许可】

CC BY   

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