Fig. 6.
Effects of graded swimming on the glucose fluxes of fish receiving exogenous glucose. The measured total rate of appearance of glucose (Total Ra; ▲) is the sum of endogenous glucose production (endogenous Ra; ○) and exogenous glucose supply. The rate of glucose disposal (Rd) is indicated with solid circles. Values are expressed as means ± SE; n = 12 below 1.6 BL/s, but <10 at higher speeds because individual fish reached different maximal exercise intensities. Total Ra, endogenous Ra, and Rd glucose changed with speed (P < 0.001; one-way RM-ANOVA). *Significant difference from baseline for each parameter.