Korean Journal of Applied Biomechanics (한국운동역학회지)

Korean Society of Applied Biomechanics (한국운동역학회)
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Muscle Activity in T-ball Swing with Down Syndrome's Children

다운증후군 아동의 T-ball 스윙 시 근육활동 규명

  • Published : 2008.12.30
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Abstract

The purpose of this study was to investigate the muscle activities of pectoralis major, upper serratus, lat dorsi, anterior deltoid, rhomboids, infraspinatus, and posterior deltoid using Noraxon 8 channels EMG system during T-ball swing in children with Down syndrome. Five Down syndrome, one healthy children, and one baseball adult player were participated in the study. Down syndrome's children showed higher muscle activity than one healthy children and one baseball adult player during address to backswing and backswing to impact swing phase. While Down syndrome's children showed lower muscle activity than one healthy children and one baseball adult player during impact to follow swing phase. The strength of the pectoralis major and upper serratus muscle may help to improve T-ball swing movement during impact to follow swing phase.

본 연구의 목적은 다운증후군 아동들의 T-ball 스윙 중에 작용하는 근육의 활동을 규명하는 것이다. 다운증후군을 가진 남자 아동 5명을 대상으로 T-ball 스윙 중에 중요하게 작용하는 pectoralis major, upper serratus, lat dorsi, anterior deltoid, rhomboids, infraspinatus, posterior deltoid의 근육활동을 노락슨 8채널 무선 근전도 측정시스템을 사용하여 시작-백스윙, 백스윙-임팩트, 임팩트-팔로스루 구간으로 나누어 분석하였다. 다운증후군 아동들은 정상아동 및 성인선수들보다 시작-백스윙 구간 및 백스윙-임팩트 구간에서 오른쪽 및 왼쪽 상체 부위의 근육활동이 더 두드러지게 나타났다. 반면에 임팩트-팔로스루 구간에서는 정상아동 및 성인선수들에 비해 더 적은 근육활동이 나타났다. 특히 임팩트 후 팔로스루 구간에서 어깨 수평 내전근인 pectoralis major와 견갑골 외전 및 상방 회전근인 upper serratus 근육의 활동 강화가 필요한 것으로 나타났다.

Keywords

References

  1. 유연주, 임비오, 김석범, 남기정, 최범권, 김민희(2008). 다운증후군 아동의 수직점프 동작 수행 시 지면반력과 근육활동의 규명. 한국운동역학회지, 18(1), 9-18.
  2. 임비오, 최치선, 최범권(2007). 다운증후군 아동의 보행 향상을 위한 근육활동 규명, 체육과학연구, 18(1), 107-115.
  3. 한동기(2002). 근력 훈련이 다운증후군 아동 및 청소년의 등속성 근력과 보행 형태에 미치는 영향. 미간행 박사학위논문, 서울대학교 대학원.
  4. Almeida, G. L., Marconi, N. F., Tortoza, C., Ferreira, S. M. S., Gottlieb, G. L., & Corcos, D. M. (2000). Sensorimotor deficits in down syndrome: implications for facilitating motor performance. In: Weeks, D. J., Chua, R., Elliot, D. (Eds). Perceptual-Motor behavior in down syndrome. Champaign, IL: Human Kinetics.
  5. Carmeli, E., Kessel, S., Coleman, R. & Ayalon, M. (2002). Effects of a treadmill walking program on muscle strength and balance in elderly people with down syndrom. Journals of Gerontology Series A: Biological Sciences & Medical Scienc, 57A(2), M106-M110.
  6. Cioni, M. (2002). Gait analysis of individuals with down syndrome. Physical medicine and rehabilitation: State of the Art Reviews, 16(2), 303-321.
  7. Cowie, V. A. (1970). A study of the early development of mongols. Oxford: Pergamon Press.
  8. Cram, J. R., & Kasman, G. S. (1998). INTRODUCTION to Surface Electromyography. AN ASPEN PUBUCATION. Aspen Publishers, Inc. : Gaithersburg, Maryland.
  9. Davis, W. E., & Kelso, J. A. S. (1982). Analysis of invariant characteristics in the motor control of down syndrome and normal subjects. Journal of Motor Behavior, 14, 194-212. https://doi.org/10.1080/00222895.1982.10735273
  10. Hayes, A., & Batshaw, M. L. (1993). Down syndrome. Pediatric Clinics of North Amercia, 40, 523-535.
  11. Jones, K. L. (1988). Smith's recognizable patterns of human malformation. Philadelphia, PA: Saunders.
  12. Latash, M. L. & Anson, J. G. (1996). What are "normal movements" in atypical populations? Behav Brain Sci, 19, 55-68. https://doi.org/10.1017/S0140525X00041467
  13. Lydic, J. S., & Steele, C. (1979). Assessment of the quality of sitting and gait patterns in children with Down syndrome. Physical Therapy, 59(12), 1489-1494.
  14. Morris, A. F., Vaughan, S. E., & Vaccaro, P. (1982). Measurements of neuromuscular tone and strength in down syndrome children. Journal of Mental Deficiency Research, 26, 41-46.
  15. Patton, J. R., Payne, J. S., & Beirne-Smith, M. (1990). Mental retardation(3rd ed.). Columbus, OH: Merrill.
  16. Pitetti, K. H., Clirnstein, M., Mays, M. J., & Barrett, P. J. (1992). Isokinetic arm and leg strength of adults with down syndrome: A comparative study. Archives of Physical Medicine and Rehabilitation, 73, 847-850.
  17. Webber, A., Virji-Babul, N., Edwards, R., & Lesperance, M. (2004). Stiffness and postural stability in adults with Down syndrome. Exp Brain Res, 155(4), 450-458. https://doi.org/10.1007/s00221-003-1743-7