Table 3. Thoracic impedance variables and baroreflex sensitivity (mean ± SD) of participants and statistical results.

	week 12	week 16	week 20	week 25	week 30	week 35		ANOVA
Thoracic impedance (Ohm)									p	ηp2
rest	35.8±5.5	35.9±5.2	36.3±4.7	37.5±5.2	36.5±3.4	34.9±3.8	week	F (5,175) = 2.9	<.05	.08
post DB	35.8±5.7	35.6±5.1	36.2±4.7	37.3±5.3	36.3±3.2	34.6±3.7	condition	F (1,35) = 6.7	<.05	.16
Delta Z 0,RESP (Ohm)
rest	0.43±0.12	0.44±0.16	0.48±0.15	0.52±0.13	0.58±0.16	0.63±0.18	week	F (5,175) = 26.7	<.001	.43
post DB	0.43±0.14	0.43±0.16	0.48±0.16	0.51±0.15	0.56±0.15	0.58±0.16	condition	F (1,35) = 3.1	= .09	.08
RF (1/min)
rest	18.8±2.7	18.5±2.5	18.7±2.6	18.6±2.2	17.9±2.4	18.3±2.0	week	F (5,175) = 1.2	= .32	.03
post DB	17.2±2.5	16.7±2.1	17.1±2.6	17.4±2.3	16.9±2.1	17.3±2.0	condition	F (1,35) = 87.0	<.001	.71
BRS (ms/mm Hg)
rest	18.4±9.0	16.6±7.9	14.3±6.6	11.9±5.2	11.1±8.8	10.1±5.4	week	F (5,175) = 16	<.001	.61
post DB	18.2±10.1	15.9±7.6	13.7±7.2	11.8±5.9	11.0±9.9	10.5±5.9	condition	F (1,35) = 11.8	= .63	.01

Delta Z_0,RESP = change of thoracic impedance (Z0) driven by respiration; RF = respiratory frequency; BRS = baroreflex sensitivity; DB = deep breathing. Note : Multivariate analyses of variance significant for main effects only.