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 GRF(ground reaction force) parameters according to the shoes's heel heights and ground landing distances during downward stairs on bus. Participants selected as subject were consisted of young and healthy women(n=9, mean age: $21.30{\pm}0.48$ yrs, mean height: $164.00{\pm}3.05cm$, mean body mass: $55.04{\pm}4.41kg$, mean BMI: $20.47{\pm}1.76kg/m^2$, mean foot length: $238.00{\pm}5.37mm$). They were divided into 2-types of shoe's heel heights(0 cm/bare foot, 9 cm) and also were divides into downward stairs with 3 types of landing distance(20 cm, 35 cm, 50 cm). A one force-plate was used to collect the GRF(AMTI, USA) data from the sampling rate of 1000 Hz. The GRF parameters analyzed were consisted of the medial-lateral GRF, anterior-posterior GRF, vertical GRF, loading rate, Center of Pressure(${\Delta}COPx$, ${\Delta}COPy$, COP area) and Dynamic Postural Stability Index(MLSI, APSI, VSI, DPSI) during downward stairs on bus. Medial-lateral GRF and vertical GRF didn't show significant differences statistically according to the shoe's heel heights and landing distance, but 9 cm shoes heel showed higher vertical GRF than that of 0 cm bare foot in landing distance of 50 cm. Also anterior-posterior GRF didn't show significant difference statistically according to the shoe's heel heights, but landing distance of 20 cm showed higher than that of landing distances of 35 cm and 50 cm in anterior-posterior GRF. Loading rate didn't show significant difference statistically according to the landing distance, but 9 cm shoe's heel showed higher than that of 0 cm bare foot during downward stairs. The ${\Delta}COPy$ and COP area didn't show significant differences statistically according to the shoe's heel heights and landing distance, but 0 cm bare foot showed higher than that of 9 cm shoe's heel in ${\Delta}COPx$. Dynamic Postural Stability Index(MLSI, APSI, VSI, DPSI) didn't show significant differences statistically according to the landing distance, but 9 cm shoe's heel showed decreased value than that of 0 cm bare foot in dynamics balance. Considering the above, parameters of GRF showed different characteristics according to the shoe's heel heights and ground landing distances during downward stairs on bus.
목차
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참고문헌 (53)
참고문헌 신청
An, E. S. / 2004 / Analysis of impulse under foot in various shoes / Proceedings of the Korean Society for Precision Engineering Conference 10:30~33
Andriacchi, T. P. / 1991 / In Basic Orthopaedic Biomechanics. 2nd edition / Raven Press
Andriacchi, T. P. / 1982 / The influence of total knee replacement design of walking and stair climbing / Journal Bone Joint Surgery 64(9):1328~1335
Buzzi, U. H. / 2003 / Nonlinear dynamics indicates aging affects variability during gait / Clinical Biomechanics 18(5):435~443
조준행 / 2011 / 기능적 발목 불안정성 선수들의 드롭랜딩 시 재활 기간이 하지 관절의 운동역학적 특성에 미치는 영향 / 한국운동역학회지 20(4):395~406
Andriacchi, T. P. / 1991 / In Basic Orthopaedic Biomechanics. 2nd edition / Raven Press
Andriacchi, T. P. / 1982 / The influence of total knee replacement design of walking and stair climbing / Journal Bone Joint Surgery 64(9):1328~1335
Buzzi, U. H. / 2003 / Nonlinear dynamics indicates aging affects variability during gait / Clinical Biomechanics 18(5):435~443
조준행 / 2011 / 기능적 발목 불안정성 선수들의 드롭랜딩 시 재활 기간이 하지 관절의 운동역학적 특성에 미치는 영향 / 한국운동역학회지 20(4):395~406
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