The graph below represents right leg hip joint angular velocity for a person wal

Question

The graph below represents right leg hip joint angular velocity for a person walking. Right foot contact 1 (RFC1lis at 0% of the gait cycle, right foot-off (RFO) is at 60% and the next right foot contact (RFC2) is 100% of cycle. Each vertical line represents 4% of a gait cycle (stride). The velocity curve was derived from hip angular motion represented in a clinical (anatomical position) frame of reference with flexion positive (counterclockwise) and extension negative (clockwise). Answer the question below based on the graph. footcontact1IRECLLis (stride). The ethene td tf otcontaing represented in res t 4% faga tcy xx. Based on curve polarity: a. b. c. d. The hip flexion rate is increasing from about 64 to 88% of cycle. Hip joint acceleration is zero at about 64% of the cycle. The hip is likely extending at the end of stance (RFO). The rates of change of velocity are greatest during stance

Explanation / Answer

Based on curve the hip flexion rate is increasing from about 64% to 88% of cycle.

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