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Fig. 9. Preferred walking speed, Wtot,
Wext, Wint,k and work during double
contact (expressed as a fraction of Wext) are plotted as a
function of walking experience. There is a slight increase in preferred
walking speed as the children gain more experience in walking.
Wtot and Wext show a U-shaped
relationship with walking experience. But walking experience showed no
relationship with recovery values (and consequently the efficiency of the
pendular exchange of energy), Wint,k and work during
double contact.