PASCO PS-2138 Goniometer - Manual (Page 24)

Goniometer Other Sample Data
24 ®
Hip angle while waking at a normal pace (top) and walking quickly
(bottom). Note the difference in frequency and amplitude.
The angle (top) and angular velocity (bottom) of the hip while walking.
The maximum slope of the angle plot is about 1.9 rad/s, equal to the
maximum value of angular velocity.
Angle data from the knee (top) and hip (bottom) of a walking subject,
acquired using two probes simultaneously. Note the phase relationship
between the joints.