Chronic Adaptations of Shoulder Muscle Synergies in Healthy Baseball Players.

ABSTRACT:

Background

Previous research has demonstrated that muscle synergy structure can adapt owing to training and injury; however, muscle synergies have not been evaluated in baseball players.

Hypothesis

The throwing arm would have a similar muscle synergy structure but different levels of individual muscle activity within each synergy, relative to the nonthrowing arm.

Study design

Cross-sectional study in a controlled laboratory setting.

Methods

Fourteen healthy competitive baseball players were included. Participants were tested bilaterally during a center-out planar reaching task using the KINARM robot, where kinematic data and surface electromyography data from 14 glenohumeral and scapular muscles were synchronized. Principal component analysis was used to extrac

SUBMITTER: Wambold M 

PROVIDER: S-EPMC9808840 | biostudies-literature | 2023 Jan-Feb

REPOSITORIES: biostudies-literature