Table 2.

Effect of exercise intensity on kinetic parametersd of the $\dot{V}{\mathrm{O}}_2$ and HR responses to square‐wave exercise of moderate (M) and heavy (H) intensity by gender

	Male		Female
	M	H	M	H
Exercise duration (min)	5.4 ± 0.04	7.8 ± 0.6	5.4 ± 0.04	7.6 ± 0.6
Work rate (W)	102 ± 20a , b	140 ± 23a	63 ± 13b	87 ± 15
Pulmonary oxygen uptake, $\dot{V}{\mathrm{O}}_2$
$\dot{V}{\mathrm{O}}_{2,\mathrm{BL}}$	0.53 ± 0.08a	0.53 ± 0.06a	0.41 ± 0.04	0.40 ± 0.05
$\dot{V}{\mathrm{O}}_{2,\mathrm{E}}$	1.45 ± 0.3a , b	2.0 ± 0.3a	0.93 ± 0.16b	1.3 ± 0.2
A 1 (L min−1)	0.93 ± 0.3a , b	1.2 ± 0.3a	0.51 ± 0.15b	0.75 ± 0.14
A 2 (L min−1)		0.22 ± 0.1		0.13 ± 0.06
δ 1 (s)	15 ± 2a	17 ± 2a	9.2 ± 3.9b	12.4 ± 2.7
δ 2 (s)		115 ± 32		151 ± 47
τ 1 (s)	36 ± 11a , b [27÷44]	29 ± 9a [23÷35]	45 ± 7[41÷49]	41 ± 8[36÷46]
τ 2 (s)		197 ± 92		283 ± 106
G1 (mL min−1 W−1)	10.9 ± 0.9c	9.7 ± 1.2a	11.3 ± 1.2c	10.9 ± 1.3
GTOT (mL min−1 W−1)		11.6 ± 0.9a		12.8 ± 1.0
Heart rate, HR
HRBL	93 ± 7a	91 ± 9a	104 ± 7	106 ± 6
HRE	136 ± 10a , b	162 ± 10a	148 ± 10b	178 ± 9
A 1 (bpm)	42 ± 10	47 ± 13	43 ± 9b	53 ± 11
A 2 (bpm)		21 ± 9		18 ± 9
δ 1 (s)	0.9 ± 1.9b	4 ± 3.8	0.3 ± 0.9	1.8 ± 2.5
δ 2 (s)		94 ± 37a		135 ± 46
τ 1 (s)	45 ± 20a , b [30÷61]	30 ± 8a[23÷36]	61 ± 16b [51÷71]	42 ± 10[36÷48]
τ 2 (s)		245 ± 115		223 ± 75
G1 (bpm W−1)	0.53 ± 0.11a , b	0.40 ± 0.11a	0.98 ± 0.2b	0.79 ± 0.26
GTOT (bpm W−1)		0.58 ± 0.13a		1.04 ± 0.22

The confidence interval is enclosed between square brackets.

^a P < 0.05 significant gender difference at the same exercise intensity.

^b P < 0.05 significant exercise intensity within group.

^c P < 0.05 significant different from G_TOT within group.

^dThe subscript BL and E indicate the steady‐state value at the warm up and end of exercise, respectively.