Table 3.

Overview of discriminating differences in camera-based system and inertial sensor system

		Walk	Forward lunge	Sidward lunge	Sit to Stance	Single leg Squat	Ascent stairs	Descent stairs
#Trials HC;PwKOA		101; 87	91; 79	78; 61	92; 52	99; 68	96; 69	98; 62
frontal plane	trunk	cs	cs	cs	cs	ns	cs	ns
	pelvis	cs	cs	cs	cs	ns	ns	cs
	hip	cs	cs	both	ns	ns	cs	ns
	knee	ns	cs	cs	cs	cs	cs	cs
Transverse plane	trunk	both	cs	cs	cs	cs	cs	ns
	pelvis	both	cs	cs	cs	ns	cs	cs
	hip	ns	cs	cs	ns	ns	ns	cs
	knee	cs	cs	cs	cs	ns	cs	cs
Sagittal plane	trunk	cs	cs	cs	cs	cs	cs	cs
	pelvis	ns	cs	cs	cs	ns	cs	cs
	hip	cs	cs	cs	ns	cs	cs	cs
	knee	both	both	both	ns	both	both	both
	ankle	cs	cs	both	cs	cs	cs	cs

ns no significant differences, cs discriminating differences for camera-based system; both: corresponding discriminating differences in both systems; #Trials HC; PwKO: number of trials used for analysis in both populations.