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Energy expenditure during antiorthostatic bed rest (simulated microgravity).
| Content Provider | Semantic Scholar |
|---|---|
| Author | Gretebeck, Randal J. Schoeller, Dale A. Gibson, Everett K. Lane, Helen W. |
| Copyright Year | 1995 |
| Abstract | Few studies have addressed the interaction between energy balance and lean body mass in healthy subjects during spaceflight or its simulations. We used doubly labeled water to measure total energy expenditure (TEE) in nine healthy adult men during two 7-day periods, once before and once during a 10-day head-down bed-rest period. Mean TEE was 21% less during than before bed rest; however, neither basal (BEE) nor resting (REE) energy expenditures changed, implying that the lesser TEE resulted from a reduction in physical activity. During the bed-rest period, energy intake was 563 +/- 280 kcal/day higher than TEE (P < 0.05) but body weight, fluid balance, BEE, and REE did not change relative to before bed rest. However, the small but statistically significant increase in body fat (0.44 +/- 0.67 kg, P < 0.05) during the bed-rest period suggests that body weight alone does not accurately reflect changes in energy balance during antiorthostatic bed rest. |
| File Format | PDF HTM / HTML |
| PubMed reference number | 7665419 |
| Journal | Medline |
| Volume Number | 78 |
| Issue Number | 6 |
| Alternate Webpage(s) | http://webs.wofford.edu/davisgr/research_spring_2005/2207.pdf |
| Alternate Webpage(s) | https://doi.org/10.1152/jappl.1995.78.6.2207 |
| Journal | Journal of applied physiology |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
