於不同上肢位置荷重對意向性震顫患者伸臂抓握動作之影響

Effects of Weight Bearing at Different Locations on Reach-to-grasp Kinematics in Patients with Intentional Tremor

呂家豪(Chia-Hao Lu) ； 吳菁宜(Ching-Yi Wu) ； 洪維憲(Wei-Hsien Hong) ； 陳嘉玲(Chia-Ling Chen) ； 林克忠(Keh-Chung Lin) ； 歐舒欣(Su-Hsin Aou)

《台灣醫學》 10卷2期 (2006/03) Pp. 147-155

https://doi.org/10.6320/FJM.2006.10(2).01

摘要

Intention tremor has been treated with a variety of procedures including medications, use of weights on the affected limbs or supportive devices. Efficacy study of limb weighting treatment is, however, sparse. This investigation was designed to examine how patients with intention tremor responded to various weights and locations of weighted cuff when performing prehensile movements. Fifteen patients with intention tremor were instructed to reach forward to open the jar with a 6 cm diameter under five experimental conditions. One condition was the control one (i.e., no weight). The other four conditions were formed by the crossing of the cuff weights (480g vs. 720g) and locations (upper arm vs. wrist). Reaching movement was recorded using a 6-camera three-dimensional motion analysis system. ANOVA with repeated measures were performed for each kinematic variable. In patients with cerebellar or brain stem lesions, the conditions of adding various weights on the upper arm and wrist significantly improved movement kinematics in comparison with the control condition, as represented by decreasing movement time, total displacement and movement unit (p＜0.05), and increasing the percentage of time to peak velocity (p＜0.05). The results demonstrated wearing the weight cuffs would facilitate more efficient and smoother movements than wearing nothing. The findings of this study suggested beneficial effects be established when the cuff with lighter weight was placed on the wrist or that with heavier weight on the upper arm.

關鍵字

意向性震顫 ； 重量套治療 ； 伸臂抓握動作

並列摘要

Intention tremor has been treated with a variety of procedures including medications, use of weights on the affected limbs or supportive devices. Efficacy study of limb weighting treatment is, however, sparse. This investigation was designed to examine how patients with intention tremor responded to various weights and locations of weighted cuff when performing prehensile movements. Fifteen patients with intention tremor were instructed to reach forward to open the jar with a 6 cm diameter under five experimental conditions. One condition was the control one (i.e., no weight). The other four conditions were formed by the crossing of the cuff weights (480g vs. 720g) and locations (upper arm vs. wrist). Reaching movement was recorded using a 6-camera three-dimensional motion analysis system. ANOVA with repeated measures were performed for each kinematic variable. In patients with cerebellar or brain stem lesions, the conditions of adding various weights on the upper arm and wrist significantly improved movement kinematics in comparison with the control condition, as represented by decreasing movement time, total displacement and movement unit (p＜0.05), and increasing the percentage of time to peak velocity (p＜0.05). The results demonstrated wearing the weight cuffs would facilitate more efficient and smoother movements than wearing nothing. The findings of this study suggested beneficial effects be established when the cuff with lighter weight was placed on the wrist or that with heavier weight on the upper arm.

並列關鍵字

intension tremor ； weighted cuff ； reach-to-grasp movement