Table 1. The CoM acceleration measurements from the iPad and the motion capture systems were similar across conditions.

		Condition 1		Condition 2		Condition 3		Condition 4		Condition 5		Condition 6
		Rho	P value	Rho	P value	Rho	P value	Rho	P value	Rho	P value	Rho	P value
AP	NPL	0.34	0.068	0.73	0.0001	0.87	0.0001	0.58	0.0011	0.89	0.0001	0.72	0.0001
	P2P	0.50	0.0057	0.80	0.0001	0.77	0.0001	0.67	0.0001	0.74	0.0001	0.66	0.0002
	RMS	0.66	0.0001	0.77	0.0001	0.85	0.0001	0.70	0.0001	0.92	0.0001	0.72	0.0001
ML	NPL	0.43	0.0182	0.65	0.0001	0.70	0.0001	0.43	0.0195	0.87	0.0001	0.79	0.0001
	P2P	0.41	0.0238	0.83	0.0001	0.86	0.0001	0.44	0.0178	0.90	0.0001	0.72	0.0001
	RMS	0.64	0.0002	0.81	0.0001	0.80	0.0001	0.59	0.001	0.93	0.0001	0.81	0.0001
TR	NPL	0.37	0.0472	0.73	0.0001	0.71	0.0001	0.51	0.0054	0.77	0.0001	0.76	0.0001
	P2P	0.14	0.4463	0.89	0.0001	0.60	0.0009	0.56	0.002	0.78	0.0001	0.86	0.0001
	RMS	0.49	0.0063	0.84	0.0001	0.73	0.0001	0.58	0.0012	0.87	0.0001	0.84	0.0001
iBess Volume		0.68	0.0001	0.94	0.0001	0.87	0.0001	0.72	0.0001	0.94	0.0001	0.91	0.0001