Table 3.

Energy and Fuel Selection

	Pre-bed rest	Post-bed rest
Energy expenditure: basal (kcal)	1861±132	1867±139
Energy expenditure: hyperinsulinemia (kcal)	1424±93	1433±117
Respiratory exchange ratio: basal	0.84±0.01	0.86±0.02
Respiratory exchange ratio: hyperinsulinemia	0.94±0.1	0.93±0.02
Carbohydrate oxidation: basal (% of total)	53±8	55±7
Carbohydrate oxidation: hyperinsulinemia (% of total)	83±4	76±7
Fat oxidation: basal (% of total)	47±8	45±7
Fat oxidation: hyperinsulinemia (% of total)	17±4	24±7