Table 5.

Results of analyses relating each threshold with CoP sway in the 4 postural conditions, performed separately for ML, AP, LARP, and RALP (ANCOVA)

	Roll Tilt 0.2 Hz	Pitch Tilt 0.2 Hz	LARP Tilt 0.2 Hz	RALP Tilt 0.2 Hz
ML	P = 0.63	P = 0.052
AP	P = 0.39	P = 0.056
LARP			P = 0.48	P = 0.086
RALP			P = 0.81	P = 0.12

LARP, left anterior and right posterior; RALP, right anterior and left posterior. None were significant after Bonferroni multiple comparison correction (0.05/6 = 0.0083).

AP, anterioposterior; CoP, center-of-pressure; LARP, left anterior and right posterior; ML, mediolateral; RALP, right anterior and left posterior. Note that P = 0.052 and P = 0.056 for pitch 0.2-Hz thresholds arose because of negative covariation, which is the opposite of our hypothesis.