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Fig. 1. Group mean sagittal plane joint angles (A–C) and angular velocities
(D–F) for the hip, knee and ankle during walking with stride rates above
(+20%), below (–20%), and at the preferred rate. The ±10%
conditions have been omitted for clarity, but were generally intermediate to
the preferred and ±20% conditions. At lower stride rates, there was a
greater range of motion at the hip and a lower range of motion at the knee.
The joint angular velocities were similar across stride rates for all three
joints during the early to mid stance phase (0–50% of the gait cycle),
but were higher for the hip and the knee during the late stance phase and the
swing phase (50–100% of the gait cycle). Flex, flexion; ext, extension;
DF, dorsiflexion; PF, plantarflexion.
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