Assessment of Energy Expenditure and Fuel Utilization in Man

DIRECT AND INDIRECT CALORIMETRY .. . . . .... . . . . ... . . ..... . . . ..... . ..... . ..... . . ..... . 1 87 Introduction 1 87 Heat Balance Equation ...... 188 Direct Calorimetry . . . . ...... . ....... ...... . . . .. . . . . . . . . . . . . . . . ... . . . .. ..... .... 1 89 Indirect Calorimetry..... . . . . . . . . . . . . . . . . . .. . . . ..... . ... . . . . . . . . . . ... . . . . . . . . . . . . . . . . . ... . . . ...... 190 Indirect Calormietry with a Respiration Chamber 192 FUEL UTILIZATION IN MAN . . . ..... . . . . ..... . ....... .... . ....... ..... . ...... ... . . 193 Theoretical Limitations ..... . . . .. ..... ... . . . ..... . . . .... . . .... . . . . . .... . . .... . ..... .... 195 Physiological Considerations. .. . ........ . . . .... . ..... . . ..... . . .. . . . . .... . ..... . .... . . ...... .... 196 Stoichiometry .. . . ... . . . . . ... . . ........ . ... ...... ..... . . ..... ..... ......... . . ... . .... . . 200 NONCALORIMETRIC METHODS WITH REFERENCE TO THE 2H2180 TECHNIQUE . . . . . . . . . . .. . . . . ..... . . ..... . . ..... . . ... . . . ... . . . .... . .. . . . . ... . . ... . . . . ... . . 203