Altered Anticipatory Postural Adjustments During Whole-Body Reaching in Subjects With Stroke.
Background: Coordination between arm movements and postural adjustments is crucial for reaching-while-stepping tasks involving both anticipatory postural adjustments (APAs) and compensatory movements to effectively propel the whole-body forward so that the hand can reach the target. Stroke impairs t...
| Published in: | Neurorehabilitation & Neural Repair Vol. 38; no. 3; pp. 176 - 187 |
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| Main Authors: | , , , |
| Format: | equations & formulas research tables/charts Journal Article |
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Sage Publications Inc.
Mar2024
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=176065173&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 176065173 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 15459683 IRK jtl: Neurorehabilitation & Neural Repair issn: 15459683 maglogo: Y pubinfo: dt: Mar2024 vid: 38 iid: 3 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 176065173 175399465 176065173 176065173 10.1177/15459683241231528 176065173 ppf: 176 ppct: 11 formats: tig: atl: Altered Anticipatory Postural Adjustments During Whole-Body Reaching in Subjects With Stroke. aug: au: Tomita, Yosuke Mullick, Aditi A. Feldman, Anatol G. Levin, Mindy F. affil: Department of Physical Therapy, Faculty of Health Care, Takasaki University of Health and Welfare, Gunma, Japan sug: subj: Stroke Complications Balance, Postural Reaching Task Performance and Analysis Funding Source Human Descriptive Statistics Data Analysis Software Chronic Disease Kinematics Male Female Middle Age Aged Aged, 80 and Over Scales Clinical Assessment Tools Mann-Whitney U Test Wilcoxon Signed Rank Test Confidence Intervals Odds Ratio Middle Aged: 45-64 years Aged: 65+ years Aged, 80 & over Male Female ab: Background: Coordination between arm movements and postural adjustments is crucial for reaching-while-stepping tasks involving both anticipatory postural adjustments (APAs) and compensatory movements to effectively propel the whole-body forward so that the hand can reach the target. Stroke impairs the ability to coordinate the action of multiple body segments but the underlying mechanisms are unclear. Objective. To determine the effects of stroke on reaching performance and APAs during whole-body reaching. Methods: We tested arm reaching in standing (stand-reach) and reaching-while-stepping (step-reach; 15 trials/condition) in individuals with chronic stroke (n = 18) and age-matched healthy subjects (n = 13). Whole-body kinematics and kinetic data were collected during the tasks. The primary outcome measure for step-reach was "gain" (g), defined as the extent to which the hip displacement contributing to hand motion was neutralized by appropriate changes in upper limb movements (g = 1 indicates complete compensation) and APAs measured as spatio-temporal profiles of the center-of-pressure shifts preceding stepping. Results: Individuals with stroke had lower gains and altered APAs compared to healthy controls. In addition, step onset was delayed, and the timing of endpoint, trunk, and foot movement offset was prolonged during step-reach compared to healthy controls. Those with milder sensorimotor impairment and better balance function had higher gains. Altered APAs were also related to reduced balance function. Conclusions: Altered APAs and prolonged movement offset in stroke may lead to a greater reliance on compensatory arm movements. Altered APAs in individuals with stroke may be associated with a reduced shift of referent body configuration during the movement pubtype: Academic Journal doctype: equations & formulas research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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