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Fig. 4. (A) Limb angle relative to horizontal (
) and (B) limb length as the
distance between hip and toe (L) over the course of the perturbed
step for all U trials from one individual (solid blue), with a typical C
(broken green) and V (dotted red) trial from the same individual. Thin broken
grey lines indicate the aerial phase. Thicker lines indicate the period of
ground contact. The dotted vertical line indicates the time of tissue paper
contact for U trials, and the time of ground contact for the C and V trials.
Data are shown for the period from aerial phase peak in COM height to the end
of the stance phase following the perturbation.
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