Print Email Facebook Twitter Human locomotion through a multiple obstacle environment: Strategy changes as a result of visual field limitation Title Human locomotion through a multiple obstacle environment: Strategy changes as a result of visual field limitation Author Jansen, S.E.M. Toet, A. Werkhoven, P.J. Publication year 2011 Abstract This study investigated how human locomotion through an obstacle environment is influenced by visual field limitation. Participants were asked to walk at a comfortable pace to a target location while avoiding multiple vertical objects. During this task, they wore goggles restricting their visual field to small (S: 40° × 25°), medium (M: 80° × 60°), large (L: 115° × 90°), or unlimited (U) visual field sizes. Full-body motion capture was used to extract for each trial the mean speed, pathlength, mean step width, magnitude of head rotation and head mean angular speed. The results show that compared with the U condition, the M and L conditions caused participants to select a wider path around the obstacles without slowing down or altering step width. However, the S condition did slow down the participants, and increased both their step width and path length. We conclude that only for the S condition, balancing problems were substantial enough to spend more energy associated with increased step width. In all cases, participants choose to optimize safety (collision avoidance) at the cost of spending more energy. © 2011 The Author(s). Subject HumanTPI - Training & Performance Innovations PCS - Perceptual and Cognitive SystemsBSS - Behavioural and Societal SciencesMovementHead movementLocomotionObstacle avoidanceSteeringStrategy changesVisual field restriction To reference this document use: http://resolver.tudelft.nl/uuid:eaff15dc-42da-447c-8b19-25946e1afdd1 DOI https://doi.org/10.1007/s00221-011-2757-1 TNO identifier 434679 ISSN 0014-4819 Source Experimental Brain Research, 212 (3), 449-456 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.