Figure 1. Effect of Wingate anaerobic exercise on serum IGF-I, FGF-2, and lactate levels. a) Pre-exercise IGF-I level was significantly lower in the higher fit compared to the lower fit group. Following the Wingate anaerobic exercise, a significant transient increase in the level of IGF-I was observed only in the higher fit group. b) Pre-exercise FGF-2 level was significantly higher in the higher fit compared to the lower fit group. Following the Wingate anaerobic exercise, FGF-2 decreased significantly to almost undetectable levels in both groups. c) At peak anaerobic exercise, a significant difference in lactate level was observed between the groups. * p < 0.05 between the groups. ∆ p < 0.05 between rest and peak anaerobic exercise.