Figure 1.
Sixteen participants completed 6 wk of progressive aerobic training while consuming either carbohydrates or carbohydrates with 20 g of protein following each exercise session. D2O was consumed 3 times daily (tid) or 2 times daily (bid) to isotopically label newly synthesized products obtained in muscle biopsy samples. Body composition and maximal aerobic fitness (Vo2max) were determined before and after training. Saliva and blood samples were used to determine steady-state D2O content in body water and precursor enrichments for synthesis rate calculations.