學院

醫學院

系所

職能治療學系

題名

Effects of task instructions and target location on reaching kinematics in persons with and without cerebrovascular accident: a study of the less-affected limb

作者

Keh-chung Lin, Ching-yi Wu, Kwan-hwa Lin, Chein-wei Chang

期刊名稱

American Journal of Occupational Therapy(SSCI 期刊) 62(4) 456-465

發表日期

2008年7月

著作性質

原始論著

語文

英文

關鍵字

environment, movement, stroke, task performance and analysis

摘要

OBJECTIVE: We investigated how verbal instructions and target location interacted to influence reaching movement of the less-affected limb in participants with and without unilateral cerebrovascular accidents (CVAs). METHOD: Using a counterbalanced repeated-measures design, 26 people with CVA and 24 age-matched healthy people performed the reaching tasks under 4 conditions formed by the crossing of verbal instructions (speed and accuracy emphasis) and target locations (ipsilateral and contralateral to the performing hand). RESULTS: In the control groups, speeded instructions and ipsilateral reaches elicited significantly more preprogrammed movements than did accuracy instruction and contralateral reaches, respectively. Similar patterns of performance in response to task constraints were found in the CVA groups except for movement initiation in the right CVA group. CONCLUSION: Instruction and locations interacted to constrain reaching movements in both control and CVA groups. The combination of speeded instruction and ipsilateral reach may optimize movement performance of the less-affected limb in stroke patients.