지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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The purpose of this study was to investigate the effect of combined exercise on injury risk factors of lower extremity during landing. Ten sports talented athletes participated in this study. Sports talented athletes participated in a combined exercise (sports talented exercise, coordination) for 16 weeks. A three-dimensional motion analysis was performed using eight infrared cameras (sampling rate of 100 Hz), one force plate, and electromyography system (sampling rate of 1000 Hz) during landing. Kinetic, and kinematics analysis including average impulsive force, angle of lower extremity, vertical stiffness, onset of muscle activation were calculated by Matlab2009a software. Paired t-test was performed at alpha=.05. The average impulsive force in landing phase was not statistically significant (t=-.748, p=.474). The hip joint angle was more decreased in post test compared to pre test (E1: t=2.682, p=.025, E2: t=5.609, p=.000, E3: t=2.538, p=.032). The knee joint (E1: t=-.343, p=.739, E2: t=1.319, p=.220, E3: t=.589, p=.570) and ankle joint (E1: t=.081, p=.937, E2: t=.784, p=.453, E3: t=.392, p=.704) angle were tended to decrease after combined exercise. The vertical stiffness was tended to decrease after combined exercise (t=1.972, p=.080). Onset of quadriceps femoris (t=.698, p=.503) and medial gastocnemius (t=1.858, p=.096) were tended to be faster than biceps femoris (t=-.333, p=.747) after combined exercise. Although thses findings were not statistically significant except on a hip joint angle, risk factors of lower extremity such as joint angle, vertical stiffness and onset of quadriceps femoris, medial gastrocnemius were positively changed after the combined exercise but an additional training for improved onset of biceps femoris would be required in the future.
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참고문헌 (36)
참고문헌 신청
Butler, R. J. / 2003 / Lower extremity stiffness : implications for performance and injury / Clinical Biomechanics 18(6):511~517
Bulut, M. / 2006 / Childhood falls : characteristics, outcome, and comparison of the injury severity score and new injury severity score / Emergency Medicine Journal 23(7):540~545
Colby, S. / 2000 / Electromyographic and kinematic analysis of cutting maneuvers implications for anterior cruciate ligament injury / The American Journal of Sports Medicine 28(2):234~240
Dai, B. / 2012 / The effects of postseason break on knee biomechanics and lower extremity EMG in a stop-jump task : implications for ACL injury / Journal of Applied Biomechanics 28(6):708~717
Emery, C. A. / 2005 / Evaluation of risk factors for injury in adolescent soccer : implementation and validation of an injury surveillance system / The American Journal of Sports Medicine 33(12):1882~1891
Bulut, M. / 2006 / Childhood falls : characteristics, outcome, and comparison of the injury severity score and new injury severity score / Emergency Medicine Journal 23(7):540~545
Colby, S. / 2000 / Electromyographic and kinematic analysis of cutting maneuvers implications for anterior cruciate ligament injury / The American Journal of Sports Medicine 28(2):234~240
Dai, B. / 2012 / The effects of postseason break on knee biomechanics and lower extremity EMG in a stop-jump task : implications for ACL injury / Journal of Applied Biomechanics 28(6):708~717
Emery, C. A. / 2005 / Evaluation of risk factors for injury in adolescent soccer : implementation and validation of an injury surveillance system / The American Journal of Sports Medicine 33(12):1882~1891
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