Table 4.

Pearson r correlations from each device linear acceleration’s data on the Y axis.

		Y Axis Smartphone 1	Y Axis Smartphone 2	Y Axis Smartphone 3	Y Axis Vicon
Y axis smartphone 1	Pearson Correlation	1	0.212	−0.163	−0.415
	Sig. (2-tailed)		0.075	0.175	0.000
	N	71	71	71	71
Y axis smartphone 2	Pearson Correlation	0.212	1	0.239	−0.354
	Sig. (2-tailed)	0.075		0.045	0.002
	N	71	71	71	71
Y axis smartphone 3	Pearson Correlation	−0.163	0.239	1	0.292
	Sig. (2-tailed)	0.175	0.045		0.001
	N	71	71	71	71
Y axis Vicon	Pearson Correlation	−0.415	−0.354	0.392	1
	Sig. (2-tailed)	0.000	0.002	0.001
	N	71	71	71	71