publicList<Feature>extractFeatures(Motionmotion){//36 gait attributes: (mean and std) of ((min and max) of (4 pairs of (lower body angles))), step length (max of ltibia-rtibia), stride length (2x step length), cycle time (length / 120), velocity (stride length / cycle time); 32 anthropometric attributes: (mean and std) of bone lengths and height