Fig. 3

Urea/creatinine excretion in response to increasing protein intakes following a bout of variable intensity exercise. a: Adult Males (n = 7; total = 45 trials); b: Adult Females (n = 6; total = 36 trials); c: Adolescent Males (n = 7; total = 42 trials); d: Adolescent Females (n = 7; total = 42 trials). Each participant completed 5–8 metabolic trials and individual values for each participant are represented by different symbols