Analyses of Ground Reaction Forces and Required Coefficient of Friction in Level Walking and Stair Climbing for Females

• Main Authors: CHEN,YU-TING, 陳郁婷
• Other Authors: LI,KAI-WAY
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/28809682576949066693

碩士 === 中華大學 === 工業管理學系 === 104 === The aim of this study was to investigate the effects of ground reaction force (GRF) and required coefficient of friction (RCOF) in level walking and stair climbing (ascending and descending). We recruited eight female adult subjects to join our experiment. The subject walked on a three-meter walkway. The gait was recorded using a high speed camera. The stride length was determined. The short stride condition was that the subject was requested to walk on her averaged stride length. The full stride was that the subject was requested to walk on her double short stride. The GRF and RCOF of the subjects walked on the level walkway and the stair climbing with barefoot and when wearing lab shoes in full stride and short stride were collected using a Bertec® force plate. The peak value of GRF and RCOF were processed using the Excel. Descriptive statistics, two-way ANOVA, and correlation analyses were adopted to analyze the data. The results showed that the GRF and RCOF of going down stairs was the highest among all gait conditions whether the subjects were barefoot or shod. The GRF and RCOFs of full stride were higher than that of short stride. In this study, the GRF and RCOF values of shod condition was higher than that of barefoot condition but was not significant. The RCOF of full stride condition was significantly higher than that of short stride condition. This implies that the full stride condition was more risky of slipping and falling.