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앉은 자세에서 불안정한 접촉면을 이용한 어깨뼈 내밈 운동이 위 그리고 아래 앞톱니근 활성화에 미치는 영향

The Effects of Muscle Activation of Upper and Lower Serratus Anterior During Scapular Protraction Exercises With Unstable Surface in Sitting Position

  • 장태진 (호서대학교 생명보건대학 물리치료학과) ;
  • 황병훈 (호서대학교 생명보건대학 물리치료학과) ;
  • 전인철 (호서대학교 생명보건대학 물리치료학과)
  • Jang, Tae-Jin (Department of Physical Therapy, College of Life and Health Science, Hoseo University) ;
  • Hwang, Byeong-Hun (Department of Physical Therapy, College of Life and Health Science, Hoseo University) ;
  • Jeon, In-Cheol (Department of Physical Therapy, College of Life and Health Science, Hoseo University)
  • 투고 : 2021.06.29
  • 심사 : 2021.07.13
  • 발행 : 2021.08.20

초록

Background: The scapulo-thoracic musculatures including serratus anterior (SA), upper trapezius and lower trapezius can provide shoulder stability and functional shoulder movement. Objects: The muscle activities of upper and lower SA were compared during three different scapular protraction exercises in healthy individuals in sitting position. Methods: Twenty-five healthy subjects were participated. Electromyography device was used to measure muscle activity of upper and lower SA and trapezius muscles. Each subject was asked to perform three different scapular protraction exercises (scapular protraction [SP], SP with self-resistance [SPSR], SPSR with hand-exerciser [SPSRH]) in random order. One-way repeated measures analysis of the variance and a Bonferroni post hoc test were used. Results: The muscle activity of lower SA muscle was significantly different among three conditions (SP vs. SPSR vs. SPSRH) (p < 0.01). The lower SA muscle activity was significantly greater during SPSRH compared to SP and SPSR, which required joint stability more than SP and SPSR (p < 0.01). Conclusion: SPSRH exercise can be recommended to facilitate the muscle activity of lower SA. In addition, the intramuscular variation in the upper and lower SA during scapular protraction exercise is required to consider the effective rehabilitation.

키워드

과제정보

This research was funded by the university innovation support project of Hoseo University, grant number 221-01.

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