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Biomechanical Relationships Between Manual Wheelchair Steering and the Position of the Human Body's Center of Gravity

机译:手动轮椅转向与人体重心位置之间的生物力学关系

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The purpose of this investigation was to analyze the impact of differential steering of a wheelchair with a pushrim on changes in the position of the body's center of gravity. The method assumed measuring the wheelchair trajectory and the body's center of gravity and determining the transverse relocation of the measured body's center of gravity in relation to a point on the wheelchair trajectory. Twenty-seven measurement tests which demonstrated various wheelchair trajectories were carried out within the investigation. The trajectories were 10 to 15 m long and involved moving forward (test 2), reversing (test 3), turning left (test 1) and right (test 4). The factor of deviation of the center of gravity of human body from the wheelchair trajectory was determined for selected characteristic turning maneuvers. The measured values ranged from 51 to 192 mm. The impact of the wheelchair trajectory on the position of the body's center of gravity was demonstrated as a result of this investigation. Consequently, a trajectory deviation factor for relocation of the human body weight on one side of the wheelchair has been demonstrated.
机译:本调查的目的是分析轮椅对轮椅的差异转向的影响,以便在身体重心位置的变化变化。该方法假设测量轮椅轨迹和身体的重心,并确定测量的身体重心的横向重新定位,相对于轮椅轨迹的一点。在调查中进行了二十七种展示各种轮椅轨迹的测量测试。轨迹长长10至15米,涉及前进(试验2),逆转(测试3),左转(测试1)和右(测试4)。确定从轮椅轨迹偏离人体重心的因素,用于选定的特征转动机动。测量值范围为51至192mm。由于这项调查,证明了轮椅轨迹对车身重心位置的影响。因此,已经证明了用于将人体重重新定位在轮椅的一侧的轨迹偏差因子。

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