선택한 단어 수는 입니다.
최소 단어 이상 선택하여야 합니다.
최소 단어 이상 선택하여야 합니다.
선택한 단어 수는 30입니다.
최대 10 단어까지만 선택 가능합니다.
최대 10 단어까지만 선택 가능합니다.
가설 설정
- A common mechanism to initiate gait is to inhibit SOL activity and pull the center of pressure behind the center of mass using TA contraction or gravity. During gait initation, it is hypothesized that the alternating TA and SOL activity arises from an inablity to activate or superimpose the central program to destablize the subject's posture. Perhaps the bursting of activity, noted in the subjects in this current study, reflects an inability to superimpose a stopping program onto that of walking.
- For our first set of experiments, we had initially hypothesized that the more 'involved' the PD, as determined by a subject's score on the Hoehn and Yahr scale (H& Y), the more difficulty they would face in stopping. Additionally, we had expected, based on our work in healthy adults, that the leading limb would be of the greatest significance.
- That is, although they walked more slowly, forces were generated very rapidly indicating an increase in limb stiffness. We hypothesized that these subjects had been less able to modulate force under the trailing limb and were totally reliant on the leading limb to stop. That is, slower walking subjects were unable to alter the stopping strategy that they used, decreasing the degrees of freedom in planning.
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