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首页> 外文期刊>Experimental Brain Research >Force control improvements in chronic stroke: Bimanual coordination and motor synergy evidence after coupled bimanual movement training
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Force control improvements in chronic stroke: Bimanual coordination and motor synergy evidence after coupled bimanual movement training

机译：改善慢性卒中的力量控制：双向运动训练后的双向协调和运动协同证据

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摘要

Bimanual movement disorders are common dysfunctions post stroke. This stroke study investigated bimanual force control capabilities to determine the effect of coupled bimanual movement training on bimanual coordination and motor synergy. Stroke participants (N = 11) completed three bimanual force control tasks at 5, 25, and 50 % of maximum voluntary contraction before and after coupled bimanual movement training. Root mean square error (RMSE), approximate entropy, correlation, and bimanual motor synergy were analyzed in two-way completely within-subjects ANOVAs (Test Session × Force Level: 2 × 3). Multiple linear regression analysis determined the relationship between RMSE and other force control measures. The analyses revealed three important findings: (1) RMSE decreased from baseline to posttest (2) negative correlation (e.g., error compensation) and bimanual motor synergy increased at 25 and 50 % after rehabilitation, and (3) increased bimanual motor synergy was strongly associated with decreased RMSE after training. The findings indicate that coupled bimanual movement training improved force control performance, bimanual coordination, and motor synergies. Indeed, the present findings extend bimanual motor synergies as a meaningful indicator for estimating task performance improvements. Finally, bimanual force control is a valid outcome measure in quantifying progress toward motor recovery post stroke.
机译：双手运动障碍是中风后常见的功能障碍。这项卒中研究调查了双手力量控制能力，以确定双向双手运动训练对双手协调和运动协同作用的影响。中风参与者（N = 11）在进行双向双手运动训练前后，分别以最大自愿收缩的5％，25％和50％完成了三个双手力控制任务。均方根误差的均方根（RMSE），近似熵，相关性和两手运动协同效应均通过双向完全对象内方差分析（Test Session×Force Level：2×3）进行了分析。多元线性回归分析确定了RMSE与其他力控制措施之间的关系。分析显示了三个重要发现：（1）从基线到后测的RMSE下降（2）负相关性（例如，误差补偿），并且康复后双向运动协同增高了25％和50％，以及（3）双向运动协同增强很强与训练后的RMSE降低有关。研究结果表明，结合双手运动训练可以改善力量控制性能，双手协调和运动协同作用。实际上，当前的发现扩展了双向运动协同作用，作为评估任务绩效改善的有意义的指标。最后，双手力量控制是量化卒中后运动恢复进展的有效结果指标。

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