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.
초록· 키워드
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The purpose of this study was to analyze of the GRF (ground reaction force) parameters according to the change of positions and weights of bag during downward stairs between dominant and non-dominant in upper & lower limbs. To perform this study, participants were selected 9 healthy women (age: $21.40{\pm}0.94yrs$, height: $166.50{\pm}2.68cm$, body mass: $57.00{\pm}3.61kg$, BMI: $20.53{\pm}1.03kg/m^2$), divided into 2 carrying bag positions (dominant arm/R, non-dominant arm/L) and walked with 3 type of bag weights (0, 3, 5 kg) respectively. One force-plate was used to collect GRF (AMTI OR6-7) data at a sample rate of 1000 Hz. The variables analyzed were consisted of the medial-lateral GRF (Fx), anterior-posterior GRF (Fy), vertical GRF (Fz), impact loading rate and center of pressure (COPx, COPy, COP area, COPy posterior peak time) during downward stairs. 1) The Fx, Fy, Fz, COPx, and COP area of GRF were not statistically significant between dominant leg and non-dominant leg, but non-dominant leg, that is, showed the higher COPy, and showed higher impact loading rate than that dominant leg during downward stairs. 2) In bag wearing to non-dominant arm, Fx, Fz, COPx, COPy, impact loading rate and COP area showed increase tendency according to increase of bag weights. Also, against bag wearing to dominant arm, non-dominant showed different mechanism according to increase of bag weights. The Ground Reaction Force parameters showed different characteristics according to the positions and weights of bag during downward stairs between dominant and non-dominant arm.
목차
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참고문헌 (44)
참고문헌 신청
Baek, S. H. / 2010 / Analysis of vertical loading according to position change in center of gravity of student's backpack :3905~3910
Burnfield, W. R. / 1995 / Effects of selected kinematic and kinetic variables on instep kicking with dominant and nondominant limbs / Journal of Human Movement Studies 29(6):251~272
Bruml, H. / 1972 / Age change in preference and skill measures of handedness / Perceptual and Motor Skill 34:3~14
Burnfield, J. M. / 2005 / Comparison of utilized coefficient of friction during different walking tasks in persons with and without a disability / Gait & Posture 22(1):82~88
Carpes, F. P. / 2007 / Bilateral pedaling asymmetry during a simulated 40-km cycling time-trial / Journal of Sports Medicine and Physical Fitness 47:51~57
Burnfield, W. R. / 1995 / Effects of selected kinematic and kinetic variables on instep kicking with dominant and nondominant limbs / Journal of Human Movement Studies 29(6):251~272
Bruml, H. / 1972 / Age change in preference and skill measures of handedness / Perceptual and Motor Skill 34:3~14
Burnfield, J. M. / 2005 / Comparison of utilized coefficient of friction during different walking tasks in persons with and without a disability / Gait & Posture 22(1):82~88
Carpes, F. P. / 2007 / Bilateral pedaling asymmetry during a simulated 40-km cycling time-trial / Journal of Sports Medicine and Physical Fitness 47:51~57
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