Abstract
Slipping and falling on ascent and descent stairs often lead to high risk of injuries and fatalities. In this paper, factorial analysis was used to study various factors influential to the biomechanics, such as ground reaction force (GRF) and required coefficient of friction (RCOF). The purpose of this study is to investigate the effect of the factors, such as stairs, climbing style, climbing mode and participants on vertical GRF and RCOFs.
Highlights
Stair ascent and descent are common daily activities of people
In this study, mixed level factorial design method and analysis of variance (ANOVA) were applied to investigate the effect of factors, stairs, climbing mode, climbing style and participants on ground reaction force (GRF) and required coefficient of friction (RCOF)
ANOVA results indicated climbing mode, climbing style and participants had more significant effects than stairs did on vertical GRF
Summary
Stair ascent and descent are common daily activities of people. Falling and slipping during stair climbing may lead to high risk of death or severe injuries with longterm disability [4]. Slipping is the second leading cause of falls, accounting for 25% of all fall incidents [5]. It is estimated the annual direct cost of occupational injuries due to slips, trips, and falls in USA exceeds 6 billion dollars [6]. To prevent fall accidents and slip propensity, GRFs and RCOFs are widely adopted as a standard measure for the biomechanical analysis of stair climbing [1,5,7]
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