Table 1.

Maximum values, its rank, and lag times from six cross-correlation analysis according to baseline and release periods at supine posture in one subject’s foot.

Periods	Contents	Ch.1 $\otimes$ Ch.2	Ch.1 $\otimes$ Ch.3	Ch.1 $\otimes$ Ch.4	Ch.2 $\otimes$ Ch.3	Ch.2 $\otimes$ Ch.4	Ch.3 $\otimes$ Ch.4
Baseline	Max. value [a.u.]	$4.28\times {10}^6$	$2.20\times {10}^6$	$2.63\times {10}^6$	$19.14\times {10}^6$	$36.61\times {10}^6$	$11.88\times {10}^6$
	Rank	4	6	5	2	1	3
	Lag time [s]	0	− 0.33	0.67	−0.33	0.33	0.67
Release	Max. value [a.u.]	$8.03\times {10}^6$	$4.03\times {10}^6$	$8.96\times {10}^6$	$16.62\times {10}^6$	$28.05\times {10}^6$	$21.94\times {10}^6$
	Rank	5	6	4	3	1	2
	Lag time [s]	0.33	0	3	−1	1.67	1.33