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Fig. 8. To investigate the effect (mechanical energy fluctuations) of walking
experience (WE) on the inverted pendulum mechanism, individual mean
Ek and Ep profiles (±
S.D.) were inspected. The grey bars indicate double support. In the
youngest children, the Ek and Ep
curves are irregular. The sinusoidal pattern becomes a lot smoother after 3
months of walking experience (28 weeks WE), but variation remains large.