Journal article
Person-specific changes in motor performance accompany upper extremity functional gains after stroke
Journal of applied biomechanics, Vol.28(3), pp.304-316
07/2012
DOI: 10.1123/jab.28.3.304
PMCID: PMC3305822
PMID: 21975170
Abstract
In animal models, hundreds of repetitions of upper extremity (UE) task practice promote neural adaptation and functional gain. Recently, we demonstrated improved UE function following a similar intervention for people after stroke. In this secondary analysis, computerized measures of UE task performance were used to identify movement parameters that changed as function improved. Ten people with chronic post-stroke hemiparesis participated in high-repetition UE task-specific training 3 times per week for 6 weeks. Before and after training, we assessed UE function with the Action Research Arm Test (ARAT), and evaluated motor performance using computerized motion capture during a reach-grasp-transport-release task. Movement parameters included the duration of each movement phase, trunk excursion, peak aperture, aperture path ratio, and peak grip force. Group results showed an improvement in ARAT scores (p = 0.003). Although each individual changed significantly on at least one movement parameter, across the group there were no changes in any movement parameter that reached or approached significance. Changes on the ARAT were not closely related to changes in movement parameters. Since aspects of motor performance that contribute to functional change vary across individuals, an individualized approach to upper extremity motion analysis appears warranted.
Details
- Title: Subtitle
- Person-specific changes in motor performance accompany upper extremity functional gains after stroke
- Creators
- Stacey L DeJong - Program in Physical Therapy, Washington University School of Medicine, St. Louis, MORebecca L Birkenmeier - Program in Occupational Therapy, Washington University School of Medicine, St. Louis, MOCatherine E Lang - Program in Physical Therapy, Washington University School of Medicine, St. Louis, MO
- Resource Type
- Journal article
- Publication Details
- Journal of applied biomechanics, Vol.28(3), pp.304-316
- DOI
- 10.1123/jab.28.3.304
- PMID
- 21975170
- PMCID
- PMC3305822
- NLM abbreviation
- J Appl Biomech
- ISSN
- 1065-8483
- eISSN
- 1543-2688
- Grant note
- R01 HD055964-02 || HD / National Institute of Child Health & Human Development : NICHD K01 HD047669-05 || HD / National Institute of Child Health & Human Development : NICHD T32 HD007434-17 || HD / National Institute of Child Health & Human Development : NICHD
- Language
- English
- Date published
- 07/2012
- Academic Unit
- Physical Therapy and Rehabilitation Science
- Record Identifier
- 9984047660402771
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