Abstract:
:Following stepping in-place on the surface of a rotating circular treadmill, a subject attempting to step in-place or walk in a straight line across the floor without vision will rotate relative to space. This adaptation, termed podokinetic after-rotation (PKAR), transfers to backward walking following forward walking on the rotating disk. We asked whether adaptation obtained during stepping in-place on the rotating disk would transfer to hopping on both feet. We hypothesized that subjects would demonstrate PKAR during both hopping and stepping, adding support to the hypothesis that PKAR is a centrally mediated adaptation of general locomotor trajectory that is not specific to the form of locomotion used while on the rotating disk. Subjects demonstrated PKAR during both hopping and stepping after stepping in-place on the rotating disk. The time courses of PKAR during hopping and stepping were similar, although the angular velocity amplitude of PKAR was lower in hopping than in stepping. This difference in amplitude suggests an incomplete transfer of PKAR.
journal_name
J Neurophysioljournal_title
Journal of neurophysiologyauthors
Earhart GM,Melvill Jones G,Horak FB,Block EW,Weber KD,Fletcher WAdoi
10.1152/jn.00588.2001subject
Has Abstractpub_date
2002-02-01 00:00:00pages
1142-4issue
2eissn
0022-3077issn
1522-1598journal_volume
87pub_type
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