Effects of Bilateral Assistance for Hemiparetic Gait Post-Stroke Using a Powered Hip Exoskeleton.
Effects of Bilateral Assistance for Hemiparetic Gait Post-Stroke Using a Powered Hip Exoskeleton.
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DOI：
10.1007/s10439-022-03041-9
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发表时间：
2023-02
影响因子：
3.8
通讯作者：
Young, Aaron J.
中科院分区：
文献类型：
--
作者：
Pan, Yi-Tsen;Kang, Inseung;Joh, James;Kim, Patrick;Herrin, Kinsey R.;Kesar, Trisha M.;Sawicki, Gregory S.;Young, Aaron J.
中风所致的偏瘫步态的特征在于由于瘫痪下肢的无力而导致的不对称步态。这些肢体间的不对称增加了生物力学需求，降低了步行速度，导致社区流动性和生活质量下降。随着可穿戴技术领域的最新进展，动力外骨骼已经显示出作为改善中风后步态的潜在解决方案的巨大前景。虽然以前的研究采用了不同的外骨骼控制方法来恢复中风后的步态，但由于外骨骼对偏瘫步态的生物力学影响的了解有限，结果差异很大。在这项研究中，我们研究了不同的髋关节外骨骼辅助策略对中风后个体步态功能和步态生物力学的影响。我们发现，与不使用设备的行走相比，髋关节外骨骼的动力辅助分别使中风参与者在双侧和单侧辅助策略下的自选地上行走速度提高了17.6 ± 2.5%和11.1 ± 2.7%（p < 0.05）。此外，双侧和单侧辅助策略均显着增加了轻瘫和非轻瘫的步长（p < 0.05）。我们的研究结果表明，来自髋关节外骨骼的动力辅助是一种有效的手段，可以增加中风后的步行速度，并调整非瘫痪和瘫痪肢体之间的辅助平衡（即，双边策略）可能最有效地使性能增益最大化。在线版本包含补充材料，可通过10.1007/s10439-022-03041-9获得。
Hemiparetic gait due to stroke is characterized by an asymmetric gait due to weakness in the paretic lower limb. These inter-limb asymmetries increase the biomechanical demand and reduce walking speed, leading to reduced community mobility and quality of life. With recent progress in the field of wearable technologies, powered exoskeletons have shown great promise as a potential solution for improving gait post-stroke. While previous studies have adopted different exoskeleton control methodologies for restoring gait post-stroke, the results are highly variable due to limited understanding of the biomechanical effect of exoskeletons on hemiparetic gait. In this study, we investigated the effect of different hip exoskeleton assistance strategies on gait function and gait biomechanics of individuals post-stroke. We found that, compared to walking without a device, powered assistance from hip exoskeletons improved stroke participants’ self-selected overground walking speed by 17.6 ± 2.5% and 11.1 ± 2.7% with a bilateral and unilateral assistance strategy, respectively (p < 0.05). Furthermore, both bilateral and unilateral assistance strategies significantly increased the paretic and non-paretic step length (p < 0.05). Our findings suggest that powered assistance from hip exoskeletons is an effective means to increase walking speed post-stroke and tuning the balance of assistance between non-paretic and paretic limbs (i.e., a bilateral strategy) may be most effective to maximize performance gains. The online version contains supplementary material available at 10.1007/s10439-022-03041-9.
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影响因子：
2.6
作者：
Kawamoto H;Kamibayashi K;Nakata Y;Yamawaki K;Ariyasu R;Sankai Y;Sakane M;Eguchi K;Ochiai N
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作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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