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Fig. 3. Representative joint angle patterns normalized to percentage of stride for
the (A) hip and (C) knee during level (open) and incline (filled) hopping at
4.2 m s–1. The shaded region denotes the stance phase. (B) A
significant increase in hip extension (P=0.007) produced
significantly greater net hip extension (P=0.013) during incline
hopping. (D) The knee exhibited significantly less net flexion
(P=0.006) during incline hopping due to a significant decrease in
initial joint flexion (P=0.021). Initial hip flexion and knee
re-extension were not significantly different between level and incline
hopping (P=0.108 and P=0.289, respectively). There were no
significant differences in average joint angle changes between speeds, and
data for 3.3 and 4.2 m s–1 were pooled. Error bars represent
± 1 s.e.m.
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