Kang Nyeonju, Cauraugh James H
Motor Behavior Laboratory, University of Florida, Gainesville, FL, USA.
Motor Behavior Laboratory, University of Florida, Gainesville, FL, USA.
Neurosci Res. 2015 May;94:79-86. doi: 10.1016/j.neures.2014.12.005. Epub 2014 Dec 16.
The purpose was to investigate force control capabilities in paretic hands during unimanual movements after coupled bimanual movement training and neuromuscular stimulation on impaired muscles. Nineteen chronic stroke participants completed 90 min of rehabilitation per week for six consecutive weeks. Before and after training, volunteers performed unimanual submaximal force control tasks at 5% and 50% of maximum voluntary contraction with their paretic and non-paretic hands. Force control measures included submaximal force production, force variability, accuracy, and regularity. Two major findings on paretic hands after training revealed: (a) greater submaximal force production across force levels and (b) less regular force outputs. Paretic hand control improved after coupled bimanual movement training as evidenced by submaximal force production and force regularity.
目的是研究在对患侧肌肉进行双手协同运动训练和神经肌肉刺激后，单手运动过程中患侧手的力量控制能力。19名慢性中风参与者连续六周每周完成90分钟的康复训练。训练前后，志愿者用患侧手和非患侧手在最大自主收缩的5%和50%水平上进行单手次最大力量控制任务。力量控制指标包括次最大力量产生、力量变异性、准确性和规律性。训练后患侧手的两个主要发现为：(a) 在各个力量水平上次最大力量产生增加；(b) 力量输出的规律性降低。双手协同运动训练后，患侧手的控制能力有所改善，次最大力量产生和力量规律性可证明这一点。
