Effects of Task Goal on Movement Kinematics and Line Bisection Performance in Adults Without Disabilities.
Objective. This study investigated (a) whether the kinematic profile of a reaching-for-an-object movement would differ depending on the goal of the reaching task and (b) the effect of task goal on attentional carryover. Method. Twenty-four adults without disabilities performed a horizontal line bise...
| Publicado en: | American Journal of Occupational Therapy Vol. 52; no. 3; pp. 179 - 188 |
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| Autores principales: | , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
American Occupational Therapy Association
Mar1998
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=86134129&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 86134129 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 02729490 44I jtl: American Journal of Occupational Therapy issn: 02729490 maglogo: N pubinfo: dt: Mar1998 vid: 52 iid: 3 pid: 6680 pub: American Occupational Therapy Association place: North Bethesda, Maryland artinfo: ui: 86134129 86134129 107952257 10.5014/ajot.52.3.179 86134129 ppf: 179 ppct: 9 formats: fmt: @attributes: type: P tig: atl: Effects of Task Goal on Movement Kinematics and Line Bisection Performance in Adults Without Disabilities. aug: au: Keh-chung Lin Ching-yi Wu Trombly, Catherine A. affil: Associate Professor, School of Occupational Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan sug: subj: Motivation Psychomotor Performance Task Performance and Analysis Repeated Measures Biophysiological Methods Analysis of Variance P-Value Power Analysis Descriptive Statistics Dominance, Cerebral Cues Observational Methods Adolescence Adult Male Female Human Adolescent: 13-18 years Adult: 19-44 years Male Female ab: Objective. This study investigated (a) whether the kinematic profile of a reaching-for-an-object movement would differ depending on the goal of the reaching task and (b) the effect of task goal on attentional carryover. Method. Twenty-four adults without disabilities performed a horizontal line bisection task under three conditions: (a) a natural condition (pressing the ringing lever of a desk bell), (b) an impoverished condition (touching the ringing lever of a desk bell), and (c) a control condition (bisecting a line only). Only the natural and impoverished conditions used the reaching task (i.e., pressing or touching the ringing lever of the desk bell). The kinematic profile of reaching for the bell was established with the OPTO-TRAK system, a quantitative kinematic analysis measure. The line bisection task was performed immediately after the reaching task, which was located adjacent to the left of the line to be bisected. Results. The natural condition elicited better quality of reaching movement than did the impoverished condition. It produced significantly shorter movement time and higher peak velocity. A less impressive effect was found for percentage of reach where peak velocity occurs. Bisection performance under the two experimental conditions was leftward biased relative to the control condition, and the magnitude of leftward bias in the natural condition was greater than that for the impoverished condition. Conclusion. Results supported one core assumption of occupational therapy: goal-directed and functional tasks can be used to enhance human performance. If the results hold for clinical populations, manipulations of functional goals may enhance movement performance of persons with disabilities and remediate left neglect often seen in clients who have had a stroke. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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