Rutgers University Rehabilitation Laboratory, Department of Biomedical Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey; Human Performance and Movement Analysis Laboratory, Kessler Foundation Research Center, West Orange, New Jersey.
Rutgers University Rehabilitation Laboratory, Department of Biomedical Engineering, Rutgers, The State University of New Jersey, Piscataway, New Jersey; Clinical Brain Disorders Branch, National Institute of Mental Health, Bethesda, Maryland.
J Hand Ther. 2010 Jan-Mar;23(1):63-72. doi: 10.1016/j.jht.2009.10.004.
A clinical measurement study.
To test the applicability of Fitts' paradigm to grasping tasks in individuals with chronic stroke.
Fitts' Law relates the time of target achievement to task difficulty in repetitive motor tasks.
Six male chronic stroke patients performed repetitive actuation of a grip force dynamometer with their affected hands for 12 sessions over four to six weeks.
Movement times followed Fitts' behavior with correlations of R(2)>0.8 for all subjects. Grasp control improved during training, as indicated by an average decrease in Fitts' slope of 26% at high difficulty levels (p<0.05), and decreases in the number of force corrections and in jerkiness, both at p<0.001 level.
The Fitts' grip force targeting protocol provides an objective standardized instrument for grasp proficiency quantification and a potentially efficacious platform for hand training for persons with stroke.
N/A.
临床测量研究。
测试 Fitts 范式在慢性中风患者抓握任务中的适用性。
Fitts 定律将目标实现时间与重复性运动任务的任务难度相关联。
6 名男性慢性中风患者在 4 至 6 周内使用受影响的手进行 12 次握力测力器的重复驱动。
运动时间符合 Fitts 的行为，所有受试者的相关系数 R(2)>0.8。抓握控制在训练过程中得到改善，高难度水平下 Fitts 斜率平均降低 26%（p<0.05），力校正次数和急动度均降低，均达到 p<0.001 水平。
Fitts 握力目标协议提供了一种客观的标准化工具，用于量化抓握能力，并为中风患者的手部训练提供了一种潜在有效的平台。
无。
