Landing under conditions of height-induced threat

Schepens, Bénédicte;Luu, M John;Carpenter, Mark G.;et.al.
(2019) International Society of Gait and Posture Research — Location: Edinburg, UK (30.June.2019)

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Background and aim: Landing on the ground involves a tuned anticipatory control to allow for soft and safe contact with the ground. Fearful situations are known to affect the control of posture during standing, but it is unclear how fear interferes with the control of a more dynamic voluntary task requiring coordination between posture and movement. Our goal was to investigate the effect of height-induced threat on the motor control of landing after hopping down from a small box. We expected that threatening conditions will involve a stiffer touchdown, leading to the deterioration of the energy absorption mechanism necessary to avoid rebound and eventually to a less stable balance behavior. Likewise we expected that greater threat-related changes in arousal, balance confidence and fear of falling will be correlated with greater modifications to landing mechanics.
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Schepens, B., Luu, M. J., Carpenter, M. G., & et al. (2019). Landing under conditions of height-induced threat. International Society of Gait and Posture Research, Edinburg, UK. https://hdl.handle.net/2078.5/24736