Journal of The Korean Society of Integrative Medicine (대한통합의학회지)

Korean Society of Integrative Medicine (대한통합의학회)
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Effects of Shortening of Pectoralis Minor Muscle on Muscle Activity of Trapezius and Pectoralis Major Muscles

작은가슴근의 단축이 등세모근과 큰가슴근의 근 활성도에 미치는 영향

  • Yang, Hoesong (Department of Physical Therapy, Cheongam College) ;
  • Bae, Sehyeon (Department of Physical Therapy, Cheongam College)
  • 양회송 (청암대학교 물리치료과) ;
  • 배세현 (청암대학교 물리치료과)
  • Received : 2013.11.11
  • Accepted : 2013.12.12
  • Published : 2013.12.30
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Abstract

PURPOSE : The purpose of this study was to determine the effects of the length of the pectoralis minor on muscle activity of trapezius and pectoralis major in subjects in subjects with shortened pectoralis minor muscle. METHOD : The subjects was participated in 36 with shortened pectoralis minor muscle. All subjects was examined the length test of pectoralis minor muscle. we divided by 3 groups. group I(n=12) was for 4~5cm of length of pectoralis minor muscle, group II(n=12) was for 5~6cm, group III(n=12) was for above 6cm. The EMG activity of upper trapezius, middle trapezius, lower trapezius and pectoralis major muscle activity was measured by surface EMG while elevationg the right arm in sitting postion with head to the neutral, shoulder elevation $135^{\circ}$ with scaption. Data were analyed using one-way ANOVA with a Tukey post hoc test. RESULT : The EMG activity differed significantly among the three groups(p<.05). The group III had significantly greater EMG activity of upper trapezius and pectoralis major muscles than group I and II(p<.05). Also, The group III had significantly smaller EMG activity of lower trapezius muscle than group I and II(p<.05). But, these was no significant difference in the EMG activity of the middle trapezius muscle among the groups (p.05). CONCLUSION : Therefore, the result of this study should be suggested that the shortened pectoralis minor muscle was affected the EMG activity of the upper trapezius, lower trapezius and pectoralis major. Ultimately the length of the pectoralis minor muscle leads to the muscle imbalance in shoulder girdle.

Keywords

References

  1. 김동일, 이윤희, 이주영 등(2012). 미디어 이용 대체.보완과 중독 : 청소년과 성인의 인터넷 및 스마트폰 사용 형태를 증심으로. 청소년상담연구지, 20(1), 71-88.
  2. 김창현, 한경수(1999). 후두하 신장운동이 두경부자세와 흉세유돌근 및 승모근 활성에 미치는 영향. 원광대학교 치의학연구소, 9(2), 175-185.
  3. 박재만(2010). Push-up plus 운동이 둥근 어깨를 가진 대상자의 견갑골 위치와 근 활성도에 미치는 영향. 대불대학교 보건 대학원, 석사학위 논문.
  4. 이대희(2011). 균형운동과 신장운동이 두부 전방전위 자세에 미치는 영향. 대구대학교, 박사학위 논문.
  5. 최지영, 장준혁, 오재섭(2012). 수동적 어깨 뼈 정렬이 작은가슴근 단축된 사람의 등 세모근 근활성도에 미치는 영향. 한국전문물리치료학회지, 19(2), 12-19.
  6. Borstad JD, Ludewig PM(2005). The effect of long versus short pectoralis minor resting length on scapular kinematics in healthy individuals. J Orthop Sports Phys Ther, 35(4), 227-238. https://doi.org/10.2519/jospt.2005.35.4.227
  7. Brunnstrom S, Lehmkuhl LD, Smith LK(1983). Brunnstrom's clinical kinesiology. 4th ed, Philadelphia, FA Davis.
  8. Cailliet R(1997). Soft tissue pain and disability 3rd ed, Philadelphia, F.A. Davis.
  9. Cools AM, Declercq GA, Cambier DC et al(2007). Trapezius activity and intramuscular balance during isokinetic exercise in overhead athletes with impingement symptoms. Scand J Med Sci Sports, 17(1), 25-33.
  10. Ettema GJ, Huijing PA(1994). Effects of distribution of muscle fiber length on active length-force characteristics of rat gastrocnemius medialis. Anat Rec, 239(4), 414-420. https://doi.org/10.1002/ar.1092390408
  11. Griegel-Morris P, Larson K, Mueller- Klaus K et al(1992). Incidence of common postural abnormalities in the cervical, shoulder, and thoracic regions and their association with pain in two age groups of healthy subjects. Phys Ther, 72(6), 425-431. https://doi.org/10.1093/ptj/72.6.425
  12. Hebert LJ, Moffet H, McFadyen BJ et al(2002). Scapular behavior in shoulder impingement syndrome. Arch Phys Med Rehabil, 83(1), 60-69. https://doi.org/10.1053/apmr.2002.27471
  13. Janda V(1994). Muscles and motor control in cervicogenic disorders: Assessment and management. Physical therapy of the cervical and thoracic spine. New York, Churchill Livingstone.
  14. Kendall FP, McCreary EK, Provance P (1993). Muscle, testing and function : with posture and pain. 4th ed, Baltimore, Williams & Wilkins.
  15. Mekhora K, Liston C, Nanthavanij S et al(2000). The effect of ergonomic intervention on discomfort in computer users with tension neck syndrome. Int J Ind Ergonom, 26(3), 367-379. https://doi.org/10.1016/S0169-8141(00)00012-3
  16. Nijs J, Roussel N, Struyf F et al(2007). Clinical assessment of scapular positioning in patients with shoulder pain: state of the art. J Manipulative Physiol Ther, 30(1), 69-75. https://doi.org/10.1016/j.jmpt.2006.11.012
  17. Page P, Frank CC, Lardner R(2010). Assessment and treatment of muscle imbalance: The Janda approach. Champaign, Human Kinetics.
  18. Sahrmann S(2002). Diagnosis and treatment of movement impairment syndromes. St. Louis, Mosby.
  19. Struyf F, Nijs J, Coninck K et al(2009). Clinical assessment of scapular positioning in musicians: An intertester reliability study. J Athletic Training, 44(5), 519-526. https://doi.org/10.4085/1062-6050-44.5.519
  20. Tepper M, Vollendroek-Hutten M, Hermens H et al(2003). The effect of an ergonomic computer device on muscle activity of the upper trapezius muscle during typing. Appl Ergon, 34(2), 125-130. https://doi.org/10.1016/S0003-6870(02)00145-X
  21. Mobile world congress report(2010). http://www.businessweek.com/globalbiz/europe/special_reports/20100215.

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