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NTIS 바로가기한국운동역학회지 = Korean journal of sport biomechanics, v.29 no.3, 2019년, pp.137 - 143
Koo, Dohoon (Department of Physical Education, Seoul National University) , Maeng, Hyokju (Department of Kinesiology and Health, Georgia State University) , Yang, Jonghyun (Department of Physical Education, Incheon National University)
Objective: Ligament laxity and hypotonia are characteristics of Down syndrome patients. The aim of this study was to compare the landing pattern between Down syndrome patients and typically developing subjects. To compare the landing pattern, variables related to ligament laxity and hypotonia i.e. v...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
다운증후군의 특징은 무엇인가? | 염색체 이상으로 인해 나타나는 다운증후군은 작은 키, 특이한 얼굴 생김새, 낮은 지능, 운동 발달 지연 등의 특징을 가지고 있다(Sherrill, 1998). 특히 다운증후군의 일반적 특성으로 알려져 있는 운동 발달 지연은 모터뉴런(motoneuron) 활성 저하와 신장 반사의 문제로 인해 비정상적인 근육 활성화가 유발되는 근긴장저하(hypotonia)와 인대 이완(ligament laxity)에 기인한다(Carr, 1970; Gilman, Bloedel & Lechtenberg, 1981). | |
다운증후군 아동들의 점프 동작 시 보이는 형태는 어떠한가? | 다운증후군은 보행 시 짧은 보폭과 낮은 보행 속도를 가지고 있으며(Galli et al., 2008), 점프 동작 시에는 느린 준비 동작과 최대 점프 높이가 낮게 나타난다(Yu et al., 2008). | |
높은 수직 강성의 문제점은 무엇인가? | 높은 수직 강성은 하지의 움직임 가동범위를 작게 하고 착지 시 발생하는 충격력을 높이기 때문에 상해에 쉽게 노출되는 원인이 될 수 있다(Butler et al., 2003). |
Angelopoulou, N., Matziari, C., Tsimaras, V., Sakadamis, A., Souftas, V. & Mandroukas, K. (2000). Bone mineral density and muscle strength in young men with mental retardation (with and without Down syndrome). Calcified Tissue International, 66(3), 176-180.
Butler, R. J., Crowell, H. P. & Davis, i. M. (2003). Lower extremity stiffness: implications for performance and injury. Clinical Biomechanics, 18(6), 511-517.
Carr, J. (1970). Mental and motor development in young mongol children. Journal of Mental Deficiency Research, 14, 250-220.
Caselli, M. A., Cohen-Sobel, E., Thompson, J., Adler, J. & Gonzalez, L. (1991). Biomechanical management of children and adolescents with Down syndrome. Journal of the American Podiatric Medical Association, 81(3), 119-127.
Devita, P. & Skelly, W. A. (1992). Effect of landing stiffness on joint kinetics and energetics in the lower extremity. Medicine & Science in Sports & Exercise, 24(1), 108-115.
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Farley, C. T. & Gonzalez, O. (1996). Leg stiffness and stride frequency in human running. Journal of Biomechanics, 29(2), 181-186.
Farley, C. T., Houdijk, H. H., Van Strien, C. & Louie, M. (1998). Mechanism of leg stiffness adjustment for hopping on surfaces of different stiffnesses. Journal of Applied Physiology, 85(3), 1044-1055.
Galli, M., Rigoldi, C., Brunner, R., Virji-Babul, N. & Giorgio, A. (2008). Joint stiffness and gait pattern evaluation in children with Down syndrome. Gait & Posture, 28(3), 502-506.
Gilman, S., Bloedel, J. R. & Lechtenberg, R. (1981). Disorders of the cerebellum. FA Davis Co.
Grimston, S. K., Ensberg, J. R., Kloiber, R. & Hanley, D. A. (1991). Bone mass external loads, and stress fractures in female runners. Int. Journal of Sport Biomechanics, 7, 293-302.
Hayes, A. & Batshaw, M. L. (1993). Down Syndrome. Pediatric Clinics of North America, 40, 523-535.
McMahon, T. A. & Cheng, G. C. (1990). The mechanics of running: How does stiffness couple with speed? Journal of Biomechanics, 23, Supplement 1(0), 65-78.
Milner, T. E., Cloutier, C., Leger, A. B. & Franklin, D. W. (1995). inability to activate muscles maximally during cocontraction and the effect on joint stiffness. Experimental Brain Research, 107(2), 293-305.
Morris, A. F., Vaughan, S. E. & Vaccaro, P. (1982). Measurement of neuromuscular tone and strength in Down syndrome children. Journal of Mental Deficiency Research, 26, 41-46.
Seyfarth, A., Geyer, H., Gunther, M. & Blickhan, R. (2002). A movement criterion for running. Journal of Biomechanics, 35(5), 649-655.
Sherrill, C. (1998). Adapted physical activity, recreation and sport: Crossdisciplinary and lifespan. WCB/McGraw Hill, 2460 Kerper Blvd., Dubuque, iA 52001.
Virji-Babul, N. & Brown, M. (2004). Stepping over obstacles: anticipatory modifications in children with and without Down syndrome. Experimental Brain Research, 159(4), 487-490.
Yu, Y. J. & Lim, B. O. (2008). Characteristics of drop Landing from different heights in children with down syndrome. Korean Journal of Physical Education, 47(3), 547-554.
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