Table 1.

Rates of ATP turnover from oxidative phosphorylation (Q), phosphocreatine hydrolysis (D), lactate production (L) and the sum (ATP_tot) during moderate and heavy constant-power exercise at two time points

	Moderate exercise		Heavy exercise
Parameter	3 min	8 min	3 min	8 min
Q (mm min−1)†	23 (14)	17 (13)	35 (17)	42 (13)*
D (mm min−1)	0.6 (1.2)	0.2 (1.0)	1.1 (2.6)	0.7 (0.9)
L (mm min−1)	1.0 (1.3)	0.3 (0.6)	1.5 (1.3)	1.3 (1.7)
ATPtot (mm min−1)‡	24 (14)	17 (14)	38 (16)	44 (14)*

Values are presented in millimolar per minute as means (SD).

^*Different from 3 min; P < 0.05.

^†Time × intensity interaction; P < 0.01; F(1,13) = 17.2; η² = 0.57.

^*Time × intensity interaction; P < 0.01; F(1,13) = 17.2; η² = 0.57