@article{ART003142045},
author={문성환 and 하대운 and Kyoung Yeol Jeong and 장동니 and 유일영 and Tae-Kyu Kim},
title={Effects of Combined External Rotation and Retraction Exercises on Scapular Alignment and Muscle Activation in Individuals with Rounded Shoulders},
journal={Journal of the Korean Society of Physical Medicine},
issn={1975-311X},
year={2024},
volume={19},
number={4},
pages={87-101}
TY - JOUR
AU - 문성환
AU - 하대운
AU - Kyoung Yeol Jeong
AU - 장동니
AU - 유일영
AU - Tae-Kyu Kim
TI - Effects of Combined External Rotation and Retraction Exercises on Scapular Alignment and Muscle Activation in Individuals with Rounded Shoulders
JO - Journal of the Korean Society of Physical Medicine
PY - 2024
VL - 19
IS - 4
PB - The Korean Society of Physical Medicine
SP - 87
EP - 101
SN - 1975-311X
AB - PURPOSE: Subjects with round shoulders were divided into three groups to determine effective intervention methods: a group who performed contraction exercises with the shoulder joint in a neutral position, a group who performed contraction exercises with the shoulder joint rotated to the side, and a group who performed self-relaxation exercises of the pectoralis minor muscle.
METHODS: Thirty subjects with rounded shoulders F S A (forward shoulder angle) less than 52° were tested for immediate changes in the pectoralis minor index (PMI), forward shoulder posture (FSP), strength, muscle activity, muscle tone, and stiffness of the retractor scapular and external rotator before and after the intervention.
RESULTS: FSP was significant in all three groups, and PMI was significant in all groups except the left self-relaxation group. An interaction effect was observed in the group combining external shoulder joint rotation in the left upper trapezius. The muscle activity increased in the middle trapezius in the group combining external rotation, and the muscle strength showed an interaction effect in all groups except the group performing self-relaxation.
CONCLUSION: This study confirmed the significant increase in the activity of the middle trapezius muscle in exercises combining external rotation and confirmed an interactive effect on the strength of the external rotators of the shoulder, the middle trapezius muscle, and the tension and stiffness of some upper trapezius muscles. Therefore, exercises combining external rotation and contraction of the shoulder can be an effective program for subjects with round shoulders. Accordingly, it is recommended that they be used as an intervention program in follow-up studies.
KW - External rotation;Retraction exercise;Round shoulder;Self-release
DO -
UR -
ER -
문성환, 하대운, Kyoung Yeol Jeong, 장동니, 유일영 and Tae-Kyu Kim. (2024). Effects of Combined External Rotation and Retraction Exercises on Scapular Alignment and Muscle Activation in Individuals with Rounded Shoulders. Journal of the Korean Society of Physical Medicine, 19(4), 87-101.
문성환, 하대운, Kyoung Yeol Jeong, 장동니, 유일영 and Tae-Kyu Kim. 2024, "Effects of Combined External Rotation and Retraction Exercises on Scapular Alignment and Muscle Activation in Individuals with Rounded Shoulders", Journal of the Korean Society of Physical Medicine, vol.19, no.4 pp.87-101.
문성환, 하대운, Kyoung Yeol Jeong, 장동니, 유일영, Tae-Kyu Kim "Effects of Combined External Rotation and Retraction Exercises on Scapular Alignment and Muscle Activation in Individuals with Rounded Shoulders" Journal of the Korean Society of Physical Medicine 19.4 pp.87-101 (2024) : 87.
문성환, 하대운, Kyoung Yeol Jeong, 장동니, 유일영, Tae-Kyu Kim. Effects of Combined External Rotation and Retraction Exercises on Scapular Alignment and Muscle Activation in Individuals with Rounded Shoulders. 2024; 19(4), 87-101.
문성환, 하대운, Kyoung Yeol Jeong, 장동니, 유일영 and Tae-Kyu Kim. "Effects of Combined External Rotation and Retraction Exercises on Scapular Alignment and Muscle Activation in Individuals with Rounded Shoulders" Journal of the Korean Society of Physical Medicine 19, no.4 (2024) : 87-101.
문성환; 하대운; Kyoung Yeol Jeong; 장동니; 유일영; Tae-Kyu Kim. Effects of Combined External Rotation and Retraction Exercises on Scapular Alignment and Muscle Activation in Individuals with Rounded Shoulders. Journal of the Korean Society of Physical Medicine, 19(4), 87-101.
문성환; 하대운; Kyoung Yeol Jeong; 장동니; 유일영; Tae-Kyu Kim. Effects of Combined External Rotation and Retraction Exercises on Scapular Alignment and Muscle Activation in Individuals with Rounded Shoulders. Journal of the Korean Society of Physical Medicine. 2024; 19(4) 87-101.
문성환, 하대운, Kyoung Yeol Jeong, 장동니, 유일영, Tae-Kyu Kim. Effects of Combined External Rotation and Retraction Exercises on Scapular Alignment and Muscle Activation in Individuals with Rounded Shoulders. 2024; 19(4), 87-101.
문성환, 하대운, Kyoung Yeol Jeong, 장동니, 유일영 and Tae-Kyu Kim. "Effects of Combined External Rotation and Retraction Exercises on Scapular Alignment and Muscle Activation in Individuals with Rounded Shoulders" Journal of the Korean Society of Physical Medicine 19, no.4 (2024) : 87-101.
