Table 1.

LDF and PPG spectral component changes resulting from the application of massage and hyperoxia to Group 1 (n = 29) and Group 2 (n = 14) obtained by the Wavelet Transform (see text).

Component		LDF signal			PPG signal
		Baseline	Challenge	Recovery	Baseline	Challenge	Recovery
Massage protocol (Group 1)
Cardiac	X	8.2	11.5	8.3	10.4	12.0	9.7
	sd	8.3	7.9	8.4	6.3	4.2	5.2
	p	—	<0.001*	0.016*	—	0.003*	0.010*
Respiratory	X	1.2	1.7	1.3	6.1	18.5	6.8
	sd	0.5	0.7	0.7	2.9	8.0	4.1
	p	—	<0.001*	0.012*	—	<0.001*	0.736
Myogenic	X	3.5	5.4	4.0	21.5	22.6	23.8
	sd	1.4	2.8	2.1	8.0	6.4	7.4
	p	—	0.016*	0.092	—	0.052	<0.001*
Sympathetic	X	7.7	8.4	8.5	16.3	12.5	14.5
	sd	3.6	4.0	4.1	4.1	3.9	3.5
	p	—	0.136	0.853	—	<0.001*	<0.001*
Endothelial NOd	X	13.8	12.8	14.0	17.8	13.6	18.2
	sd	5.3	5.7	5.2	6.1	4.1	6.4
	p	—	0.128	0.877	—	<0.001*	0.187
Endothelial NOi	X	23.0	21.6	21.7	13.7	9.6	12.0
	sd	5.6	6.6	5.9	4.8	3.3	4.5
	p	—	0.082	0.088	—	<0.001*	0.068
Hyperoxia protocol (Group 2)
Cardiac	X	1.1	1.2	1.1	18.4	15.8	15.9
	sd	0.7	0.5	0.4	9.2	6.5	8.2
	p	—	0.085	0.866	—	0.095	0.045*
Respiratory	X	3.0	3.5	2.8	9.5	13.1	11.0
	sd	1.9	1.9	1.3	3.2	4.3	4.1
	p	—	0.123	0.442	—	<0.001*	0.009*
Myogenic	X	9.0	8.9	9.3	22.6	25.1	22.7
	sd	4.1	4.4	4.3	8.2	8.5	7.2
	p	—	0.309	0.952	—	0.013*	0.871
Sympathetic	X	8.0	6.5	7.9	15.5	13.7	16.1
	sd	3.7	2.2	3.0	4.8	4.1	4.7
	p	—	0.017*	0.544	—	0.011*	0.114
Endothelial NOd	X	20.1	18.6	19.4	11.4	9.6	11.2
	sd	6.4	6.4	7.5	3.5	3.0	3.6
	p	—	0.102	0.321	—	0.012*	0.891
Endothelial NOi	X	12.8	12.0	14.2	9.6	10.4	11.1
	sd	4.3	5.7	4.1	4.9	3.7	4.1
	p	—	0.278	0.023*	—	0.993	0.212

Challenge and recovery p-values result from each phase comparisons with baseline (X mean, sd standard deviation, *p < 0.05).