@misc{10481/84850,
year = {2023},
month = {7},
url = {https://hdl.handle.net/10481/84850},
abstract = {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},
organization = {Recualificación del
Profesorado Universitario. Modalidad Margarita Salas”, Universidad de Granada/
Ministerio de Universidades y Fondos Next Generation de la Unión Europea},
publisher = {PeerJ team},
keywords = {Muscle power},
keywords = {Sarcopenia},
keywords = {Chair stand},
keywords = {Muscle architecture},
title = {Effect of sit-to-stand-based training on muscle quality in sedentary adults: a randomized controlled trial},
doi = {10.7717/peerj.15665},
author = {Lizama Pérez, Rodrigo Alberto and Chirosa Ríos, Luis Javier and Guido, Contreras Díaz and Jerez Mayorga, Daniel Alejandro},
}