Visual control strategies for stepping over obstacles
نویسندگان
چکیده
منابع مشابه
Stepping over obstacles: attention demands and aging.
Older adults have been shown to trip on obstacles despite taking precautions to step carefully. It has been demonstrated in dual-task walking that age-related decline in cognitive and attentional mechanisms can compromise postural management. This is yet to be substantiated during obstacle negotiation when walking. Forty-six healthy volunteers (aged 20-79 years) stepped over obstacles in their ...
متن کاملCharacteristics of gait in stepping over obstacles
Human gait is precisely and continuously adapted in order to negotiate obstacles safely and without excessive modulations to lower limb trajectories. To investigate obstacle clearance, unimpaired healthy adult subjects (6 male and 6 female) were videotaped stepping over an obstacle adjusted to IO%, 25%. and 40% of leg length. Lead foot clearance was relatively uninfluenced by obstacle height wh...
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The objective of this study was to evaluate how weight classification relates to meeting task constraints. Using a cross-sectional design, three-dimensional motion data were collected while children crossed obstacles of various heights. Twelve normal-weight (≥5th and <85th percentile on growth charts) and 12 overweight or obese (≥85th percentile on growth charts) 4- to 13-yr-olds participated. ...
متن کاملStepping over obstacles of different heights and varied shoe traction alter the kinetic strategies of the leading limb.
This study aims to investigate the effects of shoe traction and obstacle height on friction during walking to better understand the mechanisms required to avoid slippage following obstacle clearance. Ten male subjects walked at a self-selected pace during eight different conditions: four obstacle heights (0%, 10%, 20% and 40% of limb length) while wearing two different pairs of shoes (low and h...
متن کاملProprioceptive Control for a Robotic Vehicle over Geometric Obstacles
In this paper we describe a software system built to coordinate an autonomous vehicle with variable configuration ability operating in rough terrain conditions. The paper describes the system architecture, with an emphasis on the action planning function. This is intended to work with a proprioceptive algorithm that continuously coordinates wheel torques and suspension forces and positions to a...
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ژورنال
عنوان ژورنال: Journal of Vision
سال: 2014
ISSN: 1534-7362
DOI: 10.1167/14.10.1353