The short-term effect of swimming training load on shoulder rotational range of motion,shoulder joint position sense and pectoralis minor length

Abstract

Background

Shoulder pain or injury is the most common issue facing elite competitive swimmers and the most frequent reason for missed or modified training. Literature suggests that highly repetitive upper limb loading leads to inappropriate adaptations within the shoulder complex. The most likely maladaptations to occur are variations in shoulder rotational range of motion, reduction in joint position sense and shortened pectoralis minor length. This has yet to have been confirmed in experimental studies. The aim of this study was to investigate the short-term effects of swimming training load upon internal and external rotation range of motion, joint position sense and pectoralis minor length.

Method

Sixteen elite swimmers training in the British Swimming World Class programme participated. Measures of internal and external range of motion, joint position sense error score and pectoralis minor length were taken before and after a typical 2 h swimming session.

Results

Following swimming training shoulder external rotation range of motion and pectoralis minor length reduced significantly (−3.4°, p = <0.001 and −0.7 cm, p = <0.001, respectively), joint position sense error increased significantly (+2.0° error angle, p = <0.001). Internal rotation range of motion demonstrated no significant change (−0.6, p = 0.53).

Discussion

This study determined that elite level swimming training results in short-term maladaptive changes in shoulder performance that could potentially predispose them to injury.

Keywords

shoulder pain shoulder injury swimmers range of motion joint position sense pectoralis minor

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