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. 2013 Oct 20;1(5):e00108. doi: 10.1002/phy2.108

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© 2013 The Authors. Physiological Reports published by Wiley Periodicals, Inc. on behalf of the American Physiological Society and The Physiological Society

Re-use of this article is permitted in accordance with the Creative Commons Deed, Attribution 2.5, which does not permit commercial exploitation.

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Typical changes in wrist and ankle joint angles, and the relative phases between them in a trial involving AC(A and B), PT(C and D), and PnT tasks (E and F). Left figures indicate the same direction and right figures indicate opposite direction. The black solid and dashed lines show wrist and ankle angle, respectively. The lower graph in each figure shows the relative phase of wrist and ankle angles. The gray area indicates the success range in each condition (ISO, 0 ± 60°; OPP, 180 ± 60°). A–F are AC_ISO, AC_OPP, PT_ISO, PT_OPP, PnT_ISO, and PnT_OPP, respectively. AC, active coordination; PT, passive tracking; PnT, passive nontracking; ISO, the same direction; OPP, the opposite direction.