- 期刊
- OpenAccess
中風患者上肢動作之兩側性缺失及其功能與伸手運動學參數之相關性
Bilateral Deficits and Correlation Analysis of Upper Limb Motor Function and Reaching Behavior in Strokes
摘要
Objective: The objectives of this study were to examine the degrees of bilateral deficits between normal adults and patients with stroke and to probe the differences between normal and patients with stroke in activation and inhibition between the two hemispheres. Furthermore, this study examined the correlations between upper limb function and kinematic parameters in stroke patients. Methods: Eighteen patients with stroke and eighteen normal adults, with matched in age and gender, were recruited in this study. Each participant was requested to perform unilateral and bilateral maximal push/pull force tests, following by completing unilateral and bilateral reaching tasks. Outcome measures included the following bilateral index: push force, pull force, movement duration, peak velocity, percentage of reach where peak velocity occurs, number of movement units, and normalize jerk score. The statistical analysis of data include descriptive statistics, Spearman's correlation, and MANOVA. Results: The bilateral index of pull force in normal adults is 7.72% higher than stroke patients (F=4.51, p=0.04), and the other bilateral index did not show any significant difference. For stroke group, there were significant relationships (p＜0.05) among Modified Ashworth Scale, Fugl-Meyer upper limb motor assessment, normalized jerk score and number of movement units. Conclusions: The study supports patients with chronic stroke will demonstrate different levels of bilateral deficits by levels of task demand and movement patterns. Such phenomena may be caused by inter-hemisphere cortical excitation and disinhibition in patients with chronic stroke. The implications of the research results are further discussed in this study.
並列摘要
Objective: The objectives of this study were to examine the degrees of bilateral deficits between normal adults and patients with stroke and to probe the differences between normal and patients with stroke in activation and inhibition between the two hemispheres. Furthermore, this study examined the correlations between upper limb function and kinematic parameters in stroke patients. Methods: Eighteen patients with stroke and eighteen normal adults, with matched in age and gender, were recruited in this study. Each participant was requested to perform unilateral and bilateral maximal push/pull force tests, following by completing unilateral and bilateral reaching tasks. Outcome measures included the following bilateral index: push force, pull force, movement duration, peak velocity, percentage of reach where peak velocity occurs, number of movement units, and normalize jerk score. The statistical analysis of data include descriptive statistics, Spearman's correlation, and MANOVA. Results: The bilateral index of pull force in normal adults is 7.72% higher than stroke patients (F=4.51, p=0.04), and the other bilateral index did not show any significant difference. For stroke group, there were significant relationships (p＜0.05) among Modified Ashworth Scale, Fugl-Meyer upper limb motor assessment, normalized jerk score and number of movement units. Conclusions: The study supports patients with chronic stroke will demonstrate different levels of bilateral deficits by levels of task demand and movement patterns. Such phenomena may be caused by inter-hemisphere cortical excitation and disinhibition in patients with chronic stroke. The implications of the research results are further discussed in this study.