Table 2 Energy expenditure of systems and organs under various conditions
From: Energy metabolism and rheumatic diseases: from cell to organism
System/organ | Energy expenditure per day (kJ/day)a |
|---|---|
Total body basal metabolic rate | 7,000 |
Total body metabolic rate with usual activity | 10,000 |
Total body metabolic rate during minor surgery | 11,000 |
Total body metabolic rate with multiple bone fractures | Up to 13,000 |
Total body metabolic rate with sepsis | 15,000 |
Total body metabolic rate with extensive burns | 20,000 |
Total body daily uptake (absorptive capacity in the gut) | 20,000 |
Immune system metabolic rate under normal conditions | 1,600b |
Immune system metabolic rate moderately activated | 2,100b |
Central nervous system metabolic rate | 2,000 |
Muscle metabolic rate at rest | 2,500 |
Muscle metabolic rate activated | 2,000 to 10,000 and more |
Liverc metabolic rate | 1,600 |
Kidney metabolic rate | 600 |
Gastrointestinal tractc metabolic rate | 1,000 |
Abdominal organ (together)c metabolic rate | 3,000 to 3,700 |
Lungc metabolic rate | 400 |
Heart metabolic rate | 1,100 (and more when activated) |