Table 3.

Wilcoxon test for experimental and control group comparison.

Group		HRVa difference
		Average rank	Sum of rank	M-H test	P value
Pre				127.50	.02
	Experimental	16.58	298.50
	Control	25.90	647.50
Post				221.500	.93
	Experimental	22.19	399.50
	Control	21.86	546.50

^aHRV: heart rate variability.