Evaluation of the trunk modules in the symmetrical and three-dimensional asymmetrical trunk positions.

ABSTRACT: Modularity (Muscle synergy) is the concept that has been used to answer the question of how the central nervous system (CNS) coordinates the body's high degrees of freedom. This study aimed to investigate the trunk muscle synergies in symmetrical and asymmetrical positions. Fourteen healthy males participated. Electromyographical activities of 16 muscles were recorded during maximum voluntary isometric contraction (MVIC) in six main directions with two repetitions and maximum voluntary isometric extension (MVIE) of the trunk in 23 different three-dimensional trunk positions. Muscle synergies were extracted separately using non-negative matrix factorization during MVIC (with one/two repetitions) and MVIE. The effect of position changes on synergies was investigated using response surface mo

SUBMITTER: Kian-Bostanabad S 

PROVIDER: S-EPMC11882977 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature