Table 2

First and second thresholds obtained from f_RSA and ventilatory indices, in sedentary and athlete groups

		Sedentary group (n = 12)		Athlete group (n = 9)		p
		Mean	SD	Mean	SD	p
% W_max, percentage of maximal aerobic power; T_RSA1, first respiratory sinus arrhythmia frequency (ƒ_RSA) threshold; T_RSA2, second ƒ_RSA threshold; T_V1, first ventilatory threshold; T_V2, second ventilatory threshold.
Difference between groups: p<0.05; p<0.01; **p<0.001.
Absolute power (W)	T_RSA1	150.3	18.7	247.3	32.8	***
	T_V1	151.0	19.5	247.0	33.6	***
	T_RSA2	198.3	28.8	316.0	28.8	***
	T_V2	200.3	29.4	310.9	26.7	***
Relative power (W/kg)	T_RSA1	2.21	0.33	3.09	0.64	***
	T_V1	2.22	0.34	3.09	0.65	***
	T_RSA2	2.94	0.39	3.96	0.67	***
	T_V2	2.97	0.38	3.90	0.66	***
% W_max	T_RSA1	56.5	6.0	62.5	6.6	*
	T_V1	56.8	6.7	62.3	5.7	*
	T_RSA2	74.4	7.5	82.3	4.9	**
	T_V2	75.1	7.6	81.0	4.9	*