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首页> 外文期刊>Gait & posture >The influence of locomotor rehabilitation on module quality and post-stroke hemiparetic walking performance
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The influence of locomotor rehabilitation on module quality and post-stroke hemiparetic walking performance

机译：运动康复对模块质量和中风后偏瘫步行性能的影响

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Recent studies have suggested the biomechanical subtasks of walking can be produced by a reduced set of co-excited muscles or modules. Individuals post-stroke often exhibit poor inter-muscular coordination characterized by poor timing and merging of modules that are normally independent in healthy individuals. However, whether locomotor therapy can influence module composition and timing and whether these improvements lead to improved walking performance is unclear. The goal of this study was to examine the influence of a locomotor rehabilitation therapy on module composition and timing and post-stroke hemiparetic walking performance. Twenty-seven post-stroke hemiparetic subjects participated in a 12-week locomotor intervention incorporating treadmill training with body weight support and manual trainers accompanied by training overground walking. Electromyography (EMG), kinematic and ground reaction force data were collected from subjects both pre- and post-therapy and from 19 age-matched healthy controls walking on an instrumented treadmill at their self-selected speed. Non-negative matrix factorization was used to identify the module composition and timing from the EMG data. Module timing and composition, and various measures of walking performance were compared pre- and post-therapy.In subjects with four modules pre- and post-therapy, locomotor training resulted in improved timing of the ankle plantarflexor module and a more extended paretic leg angle that allowed the subjects to walk faster and with more symmetrical propulsion. In addition, subjects with three modules pre-therapy increased their number of modules and improved walking performance post-therapy. Thus, locomotor training has the potential to influence module composition and timing, which can lead to improvements walking performance.
机译：最近的研究表明，步行的生物力学子任务可以通过减少一组共同激发的肌肉或模块来产生。中风后的个体通常表现出较差的肌肉间协调性，其特征在于不良时机和正常情况下独立于健康个体的模块的合并。然而，运动疗法是否会影响模块的组成和时间，以及这些改善是否会导致步行性能的改善尚不清楚。这项研究的目的是检查运动康复治疗对模块组成，时机和中风后偏瘫步行性能的影响。二十七名卒中后偏瘫患者参加了为期12周的运动干预，结合了带有体重支持的跑步机训练和手动教练以及地面步行训练。肌电图（EMG），运动学和地面反作用力数据是从治疗前和治疗后的受试者以及19名与年龄相匹配的健康对照者收集的，这些健康对照者以自行选择的速度在仪器的跑步机上行走。非负矩阵分解用于从EMG数据中识别模块组成和时序。在治疗前和治疗后比较了模块的时机和组成，以及步行性能的各种测量。在具有四个模块的治疗前和治疗后的受试者中，运动训练改善了踝plant屈模块的时机，并延长了腿的伸直角度使受试者走得更快，并具有更对称的推进力。另外，在治疗前具有三个模块的受试者增加了他们的模块数量并改善了治疗后的步行性能。因此，运动训练有可能影响模块的组成和时间安排，从而可以改善步行性能。

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