Table 8.

The comparison between our study and previous studies.

Author	Ask Subjects to Change the Angle and Position of Their Hips	Set Variations for Each Type of Posture	Number of Features	Number of Posture Types	Accuracy
Ma et al. [11]	No	No	12	5	99.47%
Roh et al. [12]	No	No	3	6	97.2%
Kim et al. [18]	No	No	64	5	95.3%
Zemp et al. [23]	No	No	17	7	90.9%
Xu et al. [21]	No	No	Unknown	7	85.9%
Meyer et al. [20]	No	No	1046	16	82%
Ahmad et al. [14]	No	No	19	4	80%
Our study	Yes	Yes	3	4	89.6%