Journal article
Selection of Movement Patterns During Functional Tasks in Humans
Journal of motor behavior, v 19(2), pp 214-226
01 Jun 1987
PMID: 14988059
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
These experiments examine the role of vision and step height in the selection of a simple binary choice of movement pattern by human subjects. The subjects selected a heel strike movement pattern (HS) (as used during level surface locomotion) or a toe strike movement pattern (TS) (as used during stair descent). The functional task involved descending a step of adjustable height followed by level surface walking under vision and nonvision conditions. Triceps surae and tibialis anterior electromyographic (EMG) activity, ankle angle position, and vertical force were examined. As step height was increased, there was an indistinct threshold at which subjects switched from landing with a HS movement pattern to a TS movement pattern. The tibialis anterior and triceps surae precontact EMG bursts and subsequent ankle movement for HS and TS trials appear to be part of preprogrammed movement patterns, which are presumably of central origin. The particular mixture of voluntary, stereotypic, and reflex actions for any specified movement is based on the intent or functional outcome desired. The switching to the TS movement pattern as step height increased presumably results in the most efficient and stable movement.
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Details
- Title
- Selection of Movement Patterns During Functional Tasks in Humans
- Creators
- William Freedman - Moss Rehabilitation HospitalLinda Kent - Moss Rehabilitation Hospital
- Publication Details
- Journal of motor behavior, v 19(2), pp 214-226
- Publisher
- Routledge
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Web of Science ID
- WOS:A1987J820500004
- Scopus ID
- 2-s2.0-36248967744
- Other Identifier
- 991019173538804721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Neurosciences
- Psychology
- Psychology, Experimental
- Sport Sciences