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Acute effects of resistance training at different range of motions on plantar flexion mechanical properties and force.

Authors :
Murakami, Yuta
Konrad, Andreas
Kasahara, Kazuki
Yoshida, Riku
Warneke, Konstantin
Behm, David G
Nakamura, Masatoshi
Source :
Journal of Sports Sciences; Jan2024, Vol. 42 Issue 1, p38-45, 8p
Publication Year :
2024

Abstract

The effects obtained from resistance training depend on the exercise range of motion (ROM) performed. We aimed to examine the acute effects of different exercise ROM resistance training on the plantar flexor muscles. Eighteen healthy untrained male adults participated in three conditions: calf raises in 1) partial condition [final (short muscle length) partial ROM], 2) full condition (full ROM), and 3) control condition. The ankle dorsiflexion (DF) ROM, passive torque at DF ROM, passive stiffness of muscle-tendon unit, and maximal voluntary isometric contraction (MVC-ISO) torque were measured before and immediately after the interventions. There were significant increases in DF ROM, passive torque at DF ROM, and a decrease in MVC-ISO, but no significant interaction in passive stiffness. Post hoc test, DF ROM demonstrated moderate magnitude increases in the full condition compared to the partial (p = 0.023, d = 0.74) and control (p = 0.003, d = 0.71) conditions. Passive torque at DF ROM also showed moderate magnitude increases in the full condition compared to the control condition (p = 0.016, d = 0.69). MVC-ISO had a moderate magnitude decrease in the full condition compared to the control condition (p = 0.018, d=−0.53). Resistance training in the full ROM acutely increases joint ROM to a greater extent than final partial ROM, most likely due to stretch tolerance. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
02640414
Volume :
42
Issue :
1
Database :
Complementary Index
Journal :
Journal of Sports Sciences
Publication Type :
Academic Journal
Accession number :
176634981
Full Text :
https://doi.org/10.1080/02640414.2024.2320522