[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.21598/JKPNFA.2018.16.1.33

The Effects of Trapezius and Serratus Anterior Strengthening Exercise on Pain and Muscle Activation in Spinal Cord Injury Patients with Functional Shoulder Impingement Syndrome

Kim, Sang-Chul (Dept. of Physical Therapy, Gidaechan Clinics)
Lee, Young-Min (Dept. of Physical Therapy, Hallym University Chuncheon Sacred Heart Hospital)
Shin, Kyu-Hyun (Dept. of Physical Therapy, Yeoju Raphael's House)

Publication Information

PNF and Movement / v.16, no.1, 2018 , pp. 33-42 More about this Journal

Abstract

Purpose: The aim of this study was to investigate the effects of trapezius and serratus anterior strengthening exercise on the shoulder pain and muscle activation of patients with spinal cord injury and functional shoulder impingement syndrome. Methods: The study consisted of 10 patients with spinal cord injury who were hospitalized in Rehabilitation Hospital U, Uijeongbu, South Korea. The exercise was implemented three times a week for 10 weeks. In each session, the subjects performed one of a total of five types of exercise at mid-level intensity. The shoulder pain and disability index (SPADI) was used to evaluate the patients before and after the intervention. The muscle activation of the upper trapezius, middle trapezius, lower trapezius, and anterior serratus muscle was assessed by surface electromyography (EMG) at the beginning of the experiment and 10 weeks later. Wilcoxon's singed-rank test was conducted to determine differences in the pain index and muscle activation before and after the exercise. The level of statistical significance was set at ${\alpha}=0.05$ . Results: SPADI scores significantly decreased after the exercise (p<0.05). In comparisons of muscle activation, there was a significant improvement in the upper trapezius at $60^{\circ}$ shoulder joint flexion (p<0.05). There was no significant improvement at $90^{\circ}$ shoulder joint flexion. The middle trapezius showed a significant improvement at $120^{\circ}$ shoulder joint flexion (p<0.05). Conclusion: Trapezius and serratus anterior strengthening exercise reduced pain in spinal cord injury patients with functional shoulder impingement syndrome. The decreased muscle activation of upper trapezius and increased muscle activation of the anterior serratus muscle at $60^{\circ}$ shoulder joint flexion point to positive effects of the exercise on supraduction of the scapula.

Keywords

Trapezius; Serratus anterior; Shoulder pain index; Muscle activity;

Citations & Related Records

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