|
KMID : 1035420190070030109
|
|
Journal of The Korean Society of Integrative Medicine
2019 Volume.7 No. 3 p.109 ~ p.115
|
|
|
Comparison of Muscle Activity around the Scapulothoracic Muscles According to the Angle of Shoulder Joint Abduction in the
|
|
Park Hee-Yong
Cha Hyun-Gyu
|
|
|
Abstract
|
|
|
Purpose : The purpose of this study was to investigate the activity of muscles around the scapulothoracic muscles according to the angle of shoulder joint abduction in the prone position.
Methods : The participants included 15 adult males who had not undergone orthopedic surgery and did not have shoulder joint impairments. We measured the muscle activity of the upper trapezius, middle trapezius, lower trapezius, and serratus anterior at 120 °, 90 °, and 60 ° shoulder joint abduction angles.
Results : There was a significant difference in the comparison of muscle activity in the upper trapezius, middle trapezius, and serratus anterior muscles according to the shoulder joint abduction angle (p<.05). The results of the post test showed that the upper trapezius was significantly different between 120 ° and 60 ° (p<.01), and the middle trapezius was significantly different between 90 ° and 120 °, and between 90 ° and 60 ° (p<.05). There was a significant difference in the serratus anterior between 120 ° and 90 ° (p<.01), and 120 ° and 60 ° (p<.01).
Conclusion : The results of this study could be used to determine an effective shoulder joint abduction angle to reduce muscle activity of the upper trapezius and increase muscle activity of the middle trapezius, lower trapezius, and serratus anterior.
|
|
|
KEYWORD
|
|
|
EMG, lower trapezius, scapulothoracic joint, shoulder angle, upper trapezius
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|