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. 2008 Mar 13;586(Pt 9):2381–2391. doi: 10.1113/jphysiol.2007.150128

Table 1.

Exercise-related variables

Variable graphic file with name tjp0586-2381-mu156.jpg
0.13 0.21 1.0 P
Work rate (W) 235 ± 6 290 ± 5  325 ± 5  < 0.001
Inline graphic (l min−1)    3.41 ± 0.05   4.29 ± 0.09    4.70 ± 0.13** < 0.001
Inline graphic (l min−1)   4.08 ± 0.14  4.65 ± 0.21  5.08 ± 0.27 < 0.001
R   1.20 ± 0.03  1.08 ± 0.03   1.08 ± 0.03* < 0.001
Inline graphic (l min−1) 124.5 ± 3.5 122.5 ± 6.5  126.5 ± 7.5  NS
[La] (mmol l−1)   9.6 ± 1.8  9.3 ± 1.4 10.3 ± 1.9 NS
HR (beats min−1) 169 ± 8 174 ± 10 171 ± 9  NS
CO (l min−1)  27.6 ± 1.2 28.4 ± 2.0 27.8 ± 1.6 NS
[Hb] (g dl−1)  15.3 ± 0.4 15.2 ± 0.4 15.2 ± 0.5 NS

Values are means ± S.E.M. Inline graphic, oxygen consumption; Inline graphic, carbon dioxide production; R, respiratory exchange ratio; Inline graphic, minute ventilation; [La], arterial lactate concentration; HR, heart rate; CO, cardiac output; [Hb], haemoglobin concentration.

*

Assumed to be the same as at Inline graphic = 0.21.

**

Calculated from R at Inline graphic: 0.21 and Inline graphic at Inline graphic: 1.0.