관절 역학과 협응이 최대 수직 점프의 개인내 수행차에 미치는 영향
분야
예체능 > 체육학
저자
김용운 ( Yong Woon Kim ) , 서정석 ( Jung Suk Seo ) , 한동욱 ( Dong Wook Han )
발행기관
한국운동역학회
간행물정보
한국운동역학회지 2012년, 제22권 제3호, 305~314페이지(총10페이지)
파일형식
0k401439.pdf [무료 PDF 뷰어 다운로드]
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    영문초록
    The purpose of this study was to investigate the effects of joint kinetics and coordination on within-individual differences in maximum vertical jump. 10 male subjects aged 20 to 30 performed six trials in maximum vertical jump and with based on jump height the good(GP) and bad(BP) performances for each subject were compared on joint kinetics of lower extremity and coordination parameters such as joint reverse and relative phase. The results showed that maximum moment, power, and work done of hip joint and maximum moment of ankle joint in GP were significantly higher than that in the BP but no significant differences for the knee joint. We could observe a significant difference in joint reverse timing between both conditions. And also the relative phase on ankle-knee and ankle-hip in GP were significantly lower than that in the BP, which means that in GP joint movements were more in-phase synchronized mode. In conclusion, mechanical outputs of hip and ankle joints had an effect on within-individual differences in vertical jump and the inter-joint coordination and coordination including sequence and timing of joint motion also might be high influential factors on the performances within individual.
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