Table 3. Number of frames for each posture of four datasets namely MCF, URFD, UPFD-Four Postures (UPFD-4P), and UPFD-Two Postures (UPFD-2P).

Dataset	P1	P2	P3	P4	Total
MCF-C1 to C8	4189	5513	2783	1462	13947
URFD	4243	5567	2837	1516	14163
UPFD-4P	18247	20710	2780	8903	50640
UPFD-2P	18132	15382	-	-	33514

Posture P1 corresponds to walking and standing, whereas P2, P3 and P4 represent, fall/lying on the ground, moving down, and moving up respectively.