Table 1 Summary of the main parameters extracted from IMU and Kinect

Temporal(8)

Duration(G), POD(G)

Duration(G), POD(G)

Duration(G), POD(G)

Duration(G), POD(G)

Acceleration(3*22)

(V, ML, AP)

Maximum(K), Minimum(K), Range(K), RMS(K), Max jerk(K), Mean jerk(K)

Range(K), RMS(K), Median(K), CV(K)

Range(K), RMS(K), Median(K), CV(K)

Maximum(K), Minimum(K), Range(K), RMS(K), Median(K), CV(K), Max jerk(K), Mean jerk(K)

Angular velocity(3*18)

(yaw, pitch, roll)

Maximum(K), Minimum(K), Range(K), RMS(K)

Range(K), RMS(K), Median(K), CV(K)

Range(K), RMS(K), Median(K), CV(K)

Maximum(K), Minimum(K), Range(K), RMS(K), Median(K), CV(K)

Key-point(10)

Legs angle(A), Left knee angle(A), Right knee angle(A), Step counts(G), Step length(G), Step duration(G), Step width(G)

Legs angle(A), Left knee angle(A), Right knee angle(A)