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Effects of Manual Postural Correction on the Trunk and Hip Muscle Activities During Bridging Exercises

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한국전문물리치료학회지 (Physical Therapy Korea)
한국전문물리치료학회 (Korean Research Society of Physical Therapy)
초록

The aim of this study was to investigate the effects of different postural correction in the electromyographic (EMG) activity of the trunk and hip muscles during bridging exercises. Twenty-four healthy subjects volunteered for this study. The muscle activity was recorded with surface electrodes over the erector spinae, multifidus, gluteus maximus (GM), and hamstring (Ham) muscles; it was measured by using surface EMG equipment under the following 3 experimental conditions: manual postural correction, verbal correction, and no correction. The maximal voluntary isometric contraction (MVIC) was determined for each muscle group in order to represent each exercise as a percentage of MVIC and allow for standardized comparison between subjects. A one-way analysis of variance was used to determine significant differences in the EMG activities of each muscle between the 3 experimental groups. During bridging exercises, the manual postural correction on normalized EMG activity of the GM muscle during manual guiding was significantly higher than during verbal guiding and without guiding (p<.05). Furthermore, the GM/Ham ratio was significantly higher during manual guiding than during verbal guiding and without guiding (p<.05). These findings suggest that the activities of the hip and trunk muscles may be favorably modified with manual guiding during bridging exercises.

목차
 Abstract  Ⅰ. 서론  Ⅱ. 연구방법   1. 연구대상자   2. 실험기기 및 도구   3. 실험방법   4. 자료분석  Ⅲ. 결과  Ⅳ. 고찰  Ⅴ. 결론  References
저자
  • 김소영(바로선병원 물리치료실, 대전대학교 보건의료대학원 물리치료학과) | Kim, So-Young
  • 김선엽( 대전대학교 자연과학대학 물리치료학과) | 김선엽
  • 장현정( 대전대학교 자연과학대학 물리치료학과) | 장현정