學院

醫學院

系所

職能治療學系

題名

Arm and trunk movement kinematics during seated reaching within and beyond arm’s length in patients with stroke: A validity study

作者

Wu, C-Y., Liing, R-J., Chen, H-C., Chen, C-L., & Lin, K-C.*

期刊名稱

Physical Therapy (SCI期刊)

發表日期

2014

著作性質

原著

語文

英文

關鍵字

cerebrovascular accident, kinematics, validity, reaching, rehabilitation

摘要

Background. Kinematic analysis is commonly used to objectively measure upper extremity movement performance after stroke. However, the concurrent and predictive validity of arm-trunk kinematics during reaching within and beyond arm’s length has not been studied.

Objective. The study aimed to estimate the concurrent validity of kinematic measures before and after treatment and the predictive validity for reaching within and beyond arm’s length after stroke.

Design. This was a secondary analysis study.

Methods. Ninety-seven participants with stroke (aged 55.9 ± 10.9 years) received intensive treatment every weekday for 3 to 4 weeks. Kinematic reaching tasks and the Wolf Motor Function Test (WMFT) were evaluated before and after treatment. The validity of the kinematic measures was estimated against WMFT scores.

Results. Of the 8 kinematic variables that were measured, index movement time before treatment (R2 = .227-.362) and the trunk movement time and displacement after treatment (R2 = .095-.346) had the strongest association with WMFT for both reaching distances. The trunk movement time and displacement before treatment explained 6.9% to 14.9% of variances in WMFT after treatment. Kinematic variables explained 6.9% to 49.3% of variances in WMFT during a task within arm’s length and 9.4% to 38.7% beyond arm’s length.

Limitations. The results cannot be attributed to the effects of any specific treatment.

Conclusions. Different kinematic variables might partially reflect motor function before and after treatment to a limited degree. Although the predictive validity is modest, trunk movement might be considered one of the potential prognostic determinants of motor function after treatment. A reaching task within arm’s length

might be more suitable to obtain kinematic performance for describing motor function than one that is beyond arm’s length.