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KMID : 1137820090300030226
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의공학회지
2009 Volume.30 No. 3 p.226 ~ p.232
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The Comparison of Overground Walking and Treadmill Walking According to the Walking Speed: Motion Analysis and Energy Consumption
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Son Ryang-Hee
Choi H.S.
Son Jong-Sang
Hwang Sung-Jae
Kim Young-Ho
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Abstract
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In this study, treadmill walking and overground walking were compared at the same condition based on kinematics and energy expenditures(EE). In addition, we compared the actual energy expenditure and calculated EE by treadmill. The kinematics of treadmill and overground walking were very similar. The values at each joint were significantly different(P<0.05), but magnitude of the difference was generally less than 4. In the EE using cardiopulmonary exercise, EE of treadmill walking was significantly greater when measured on the overground. It seemed to be the increased stress during the gait by the continuous movement of the belt. As the velocity increased, there was significant difference between actual EE and calculated EE by treadmill due to EE curve increasing exponentially. Therefore the further study would be required to find the correlation of the two methods and calibrate the values from them.
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KEYWORD
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Energy Expenditures, Treadmill Walking, Overground Walking
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