. 2017 Sep 1;8:639. doi: 10.3389/fphys.2017.00639

Table 1.

Values for the estimated $\overset{\cdot}{V}$ O₂ kinetic parameters in the 6-min square-wave transition from rest to heavy-intensity (to Δ25%) for swimming, arm cranking and cycling).

	Swimming	Arm cranking	Cycling
$\overset{\cdot}{V}$ O_2base (ml·kg⁻¹·min⁻¹)	8.1 ± 1.7	7.1 ± 1.2	8.1 ± 0.8
	(20.4)	(17.1)	(10.2)
A_p (ml·kg⁻¹·min⁻¹)	28.4 ± 5.1^*^#	21.9 ± 4.7^*	39.4 ± 4.1^#
	(17.9)	(21.5)	(10.3)
G_p (ml·min⁻¹·W⁻¹)	–	15.3 ± 4.2^*	10.7 ± 1.3
		(27.5)	(12.2)
τ_p (s)	31.7 ± 6.2^*^#	19.3 ± 4.2^*	12.4 ± 3.7^#
	(19.7)	(21.9)	(22.0)
A_sc' (ml·kg⁻¹·min⁻¹)	4.5 ± 1.8	3.8 ± 1.2	5.4 ± 1.4
	(39.9)	(32.3)	(25.5)
%A_sc (%)	13.4 ± 3.9	9.5 ± 5.3	13.7 ± 2.8
	(29.0)	(56.4)	(20.6)

Data are mean ± SD (CV%). CV%, mean coefficient of variation in %; $\overset{\cdot}{V}$ O_2base, resting VO₂; A_p and A_sc', amplitude of the primary and slow components, respectively; τ_p, time constant of the primary component; G_p, gain of the primary component (G_p = A_p/P); %A_sc', % contribution of slow component to net increase in $\overset{\cdot}{V}$ O₂.

P < 0.05 differences with cycling;

P < 0.05 for differences with arm cranking.