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首页> 外文期刊>Medicine and science in sports and exercise >Simple change in initial standing position enhances the initiation of gait
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Simple change in initial standing position enhances the initiation of gait

机译：只需改变初始站立姿势即可增强步态的起始

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Purpose: Older adults and individuals with Parkinson's disease exhibit impaired gait initiation performance with less effective anticipatory postural adjustments (APA) and less dynamic stepping characteristics. These observations may reflect impaired interactions between the postural and locomotor components of this task. The purpose of this study was to evaluate the effectiveness of altering the stance position of the initial swing limb on improving APA characteristics and stepping performance. Methods: Three groups (healthy young adults, individuals with Parkinson's disease, and age-matched older adults) of 12 participants initiated gait from three initial stance conditions: normal, backward displaced swing limb, and forward displaced swing limb. Ground reaction forces and whole body kinematics were recorded to characterize the APA and step parameters. Results: Initiating gait from the back condition produced more forceful weight shifting (P < 0.001), greater propulsive forces (P < 0.001), and faster center-of-mass velocities throughout the stepping phases (P < 0.05). Conclusions: Translating the swing limb 0.5-ft-length backward seems to enhance the interaction between posture and locomotion, which may have therapeutic potential for improving gait initiation performance.
机译：目的：老年人和帕金森氏病患者的步态起始表现受损，预期的姿势调整（APA）效果较差，动态踏步特性较差。这些观察结果可能反映了此任务的姿势和运动成分之间相互作用的减弱。这项研究的目的是评估改变初始挥杆姿势的姿势对改善APA特性和踩踏性能的有效性。方法：12名参与者中的三组（健康的年轻人，帕金森氏病患者和年龄相匹配的老年人）从三种初始姿势开始步态：正常，向后移位的后肢和向前移位的后肢。记录地面反作用力和全身运动学，以表征APA和阶跃参数。结果：从后背状态开始的步态产生更大的重量转移（P <0.001），更大的推进力（P <0.001）和整个步阶中更快的质心速度（P <0.05）。结论：向后平移肢体0.5英尺长似乎可以增强姿势与运动之间的相互作用，这可能具有改善步态起始性能的治疗潜力。

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