Kinematic Validation of Postural Sway Measured by Biodex Biosway (Force Plate) and SWAY Balance (Accelerometer) Technology

Table 3

Summary table of one-way repeated measure analysis of variance (ANOVA) for dependent variables.

Variable	df		F	Sig.	Partial eta squared (η^2)	Observed power
	Between groups	Within groups
Biosway SI	5	185	70.63		0.656	1.00
SBMA score	1.31	47.25	44.78		0.554	1.00
Biosway SI/BOS	1.70	63.05	309.5		0.893	1.00
COM SI/BOS	1.86	68.86	51.78		0.583	1.00
COM velocity/BOS	1.37	50.58	300.9		0.890	1.00

Main effect of condition difficulty for dependent variables Biosway Sway Index (SI), SWAY Balance Mobile Application (SBMA) score, Biosway SI/Base of Support (BOS), and Center of Mass (COM) Balance indices (COM SI/BOS and COM velocity/BOS) with Greenhouse–Geisser corrected degrees of freedom except for Biosway SI.