ArticleExperimental brain research2006
Determinants guiding alternate foot placement selection and the behavioral responses are similar when avoiding a real or a virtual obstacle.
Article in Experimental brain research, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Consequences of changing planned foot placement on balance control and forward progress.Journal of the Royal Society, Interface · 2024Article
- Human locomotion over obstacles reveals real-time prediction of energy expenditure for optimized decision-making.Proceedings. Biological sciences · 2023Article
- Binocular vision and the control of foot placement during walking in natural terrain.Scientific reports · 2021Article
- Body dynamics of gait affect value-based decisions.Scientific reports · 2021Article
- Control strategies for rapid, visually guided adjustments of the foot during continuous walking.Experimental brain research · 2019Article
- Motor cost affects the decision of when to shift gaze for guiding movement.Journal of neurophysiology · 2019Article
- Effect of a cognitive task on online adjustments when avoiding stepping on an obstacle and stepping on a target during walking in young adults.Experimental brain research · 2018Article
- Online adjustments of leg movements in healthy young and old.Experimental brain research · 2017Review
- Control of vertical posture while elevating one foot to avoid a real or virtual obstacle.Experimental brain research · 2017Article
- Slow maturation of planning in obstacle avoidance in humans.Journal of neurophysiology · 2016Article
- Effects of aging and dual tasking on step adjustments to perturbations in visually cued walking.Experimental brain research · 2015Article
- Quick foot placement adjustments during gait: direction matters.Experimental brain research · 2015Article
- Fast online corrections of tripping responses.Experimental brain research · 2014Article
- Split-second decisions on a split belt: does simulated limping affect obstacle avoidance?Experimental brain research · 2012Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In this study we validate the use of a virtual planar obstacle paradigm to study the avoidance of a real obstacle, such as a hole, during locomotion. Also we further validate the economy determinant implicated with the minimization of foot displacement from its normal landing position during alternate foot placement. Participants were asked to perform two blocks of trials: real (a real hole was embedded in the pathway and participants were requested to avoid stepping into it) and virtual (a virtual planar obstacle was displayed on the screen of a liquid crystal display monitor). Trunk and feet kinematics were monitored, as well as electromyography (EMG) activity of 14 muscles of both lower limbs and trunk. The results of this study showed that the dominant choice for each obstacle investigated was not different between the real and virtual conditions. In addition, dynamic stability, economy and forward progression determinants guiding alternate foot placement were similarly satisfied. Thus the use of virtual planar obstacle in adaptive locomotion study is appropriate. EMG data were used to compute an index relating the changes in muscle activity relative to the normal walking profile. This EMG index was significantly and positively correlated with the amount of foot displacement for the adaptive step. The fact that the dominant choice resulted in minimum foot displacement from its normal landing spot combined with minimal changes in muscle activity validates conclusively the economy determinant.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.