Inter-Limb Asymmetry in Force Accuracy and Steadiness Changes after a 12-Week Strength Training Program in Young Healthy Men

Symmetry

Tadeusz Stefaniak¹  Rafał Szafraniec¹  Michał Kuczyński²  Dariusz Harmaciński³ 

[1] Faculty of Physical Education and Sport Sciences, University School of Physical Education, 51-612 Wrocław, Poland;Faculty of Physiotherapy, University School of Physical Education, 51-612 Wrocław, Poland;Healthy Body Institute, 52-210 Wrocław, Poland;

关键词: force sense;    force matching task;    force reproduction;    force errors;    lower extremities;    resistance training;   

DOI  :  10.3390/sym13112226

来源: DOAJ

【 摘 要 】

The study aimed to investigate the impact of a 12-week strength training program on force accuracy and steadiness changes in lower limbs in young healthy men. Twenty subjects with a dominant right lower limb were included. They performed a force matching task both pre and post strength training program. The ability to reproduce force was determined by calculating three errors: absolute error (AE), constant error (CE), and variable error (VE). After intervention AE and VE improved in both legs indicating higher improvement in the dominant leg (p = 0.032 for AE and p = 0.005 for VE). However, CE improved only in the dominant leg (p = 0.001). We conclude that strength training improved the accuracy and consistency of force in a force reproduction task. This improvement was more evident in the dominant lower limb. Most likely, the inter-limb asymmetry in changes of force application ability caused by strength training is due to the different mechanisms responsible for the control of voluntary movements in the dominant and non-dominant lower limb.

【 授权许可】

Unknown