Table 2 |
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Energy expenditure of systems and organs under various conditions |
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|
System/organ |
Energy expenditure per day (kJ/day)a |
|
|
|
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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) |
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Data taken from [2]. a10,000 kJ = 2,388 kcal. bSee derivation of energy need in [2]. cEnergy need is difficult to estimate independent of the immune system in these organs. |
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Spies et al. Arthritis Research & Therapy 2012 14:216 doi:10.1186/ar3885 |
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