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KMID : 0895820100200010119
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Journal of Oriental Rehabilitation Medicine
2010 Volume.20 No. 1 p.119 ~ p.132
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The Effects of Psychological Stress on Neck Muscles
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Kwon Ho-Young
Kim Jeong-Hwan
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Abstract
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Objectives : The purpose of this study is to compare interrelations between stress and muscles of neck through stress response inventory(SRI), 7 zone diagnostic system and surface electromyography(sEMG).
Methods : This study was carried out with the data from SRI, 7 zone diagnostic system and sEMG. First subjects were divided into two group according to the SRI points. subjects in group A had points of SRI in which lower than 30 points. Subjects in group B had points of SRI in which higher than 30 points. And subjects were divided into nonstress group(Group C) and stress grouop(Group D) according to the result of 7 zone diagnostic system. Then we investigated how to differentiate the muscle contraction, fatigue, recovery and asymmetry ratio on sEMG for each groups.
Results : In this study, the muscle contraction of both upper trapezius muscle and left sternocleidomastoid muscle and left scalene muscle in stress group were higher than nonstress group significantly. And the muscle recovery of left sternocleidomastoid muscle and left scalene muscle in stress group were higher than nonstress group significantly.
Conclusions : This results show that the stress was associated with muscle condition.
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KEYWORD
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Stressresponseinventory, 7zonediagnosticsystem, Surfaceelectromyography
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