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http://dx.doi.org/10.5103/KJSB.2019.29.2.97

Strategies of Collision Avoidance with Moving and Stationary Human Obstacles during Walking  

Lee, Yeon-Jong (Department of Sport and Leisure, Semyung University)
Kim, Joo-Nyeon (Department of Sport and Leisure, Semyung University)
Publication Information
Korean Journal of Applied Biomechanics / v.29, no.2, 2019 , pp. 97-104 More about this Journal
Abstract
Objective: The aim of this study was to investigate the strategies for avoiding moving and stationary walker using body segments during walking. Method: Ten healthy young adults (10 males, age: $24.40{\pm}0.49yrs$, height: $175.80{\pm}5.22cm$, body mass: $70.30{\pm}5.22kg$) participated in this study. Each participant was asked to perform a task to avoid collisions with another walker who was moving or stationary during walking on the 10 m walkway. Both walkers were performed at natural self-selected walking speed. Results: Medio-lateral avoidance displacement of the trunk and the pelvis were significantly increased when avoiding a stationary walker (p<.05). There were no significant differences in medio-lateral center of mass trajectory. Rotation angle of trunk, pelvis and foot on the vertical axis were significantly increased when avoiding a stationary walker (p<.05). Conclusion: Based on our results, when another walker moves continuously, the walker recognizes another walker as the object of social interaction and performs the avoidance strategies while expecting the cooperative distance. On the other hand, when another walker is stopped, it is determined that the walker has an obligation to avoid, and the walker performs a relatively safer avoidance strategy.
Keywords
Collision avoidance; Human locomotor; Human obstacle;
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