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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Harder-Lauridsen, Nina Majlund Nielsen, Signe Tellerup Porsdam Mann, Sebastian Lyngbæk, Mark Preben Benatti, Fabiana Braga Langkilde, Annika Reynberg Law, Ian Wedell-Neergaard, Anne-Sophie Thomsen, Carsten Moller, Kirsten Karstoft, Kristian Pedersen, Bente Klarlund Krogh-Madsen, Rikke |
| Description | Author Affiliation: Harder-Lauridsen NM ( Rigshospitalet 7641 nmharder@gmail.com.); Nielsen ST ( Rigshospitalet,Faculty of Health Sciences, University of Copenhagen.); Porsdam Mann S ( Harvard Medical School, USA.); Lyngbæk MP ( Rigshospitalet.); Benatti FB ( University of Sao Paulo.); Langkilde AR ( Rigshospitalet.); Law I ( Rigshospitalet.); Wedell-Neergaard AS ( Rigshospitalet.); Thomsen C ( Rigshopitalet.); Moller K ( Rigshospitalet, University of Copenhagen, Denmark.); Karstoft K ( The Centre of Inflammation and Metabolism, Department of Infectious Diseases, Rigshospitalet.); Pedersen BK ( Rigshospitalet.); Krogh-Madsen R ( Rigshospitalet.) |
| Abstract | BACKGROUND: Physical activity and alternate-day fasting/caloric restriction may both ameliorate aspects of the metabolic syndrome, such as insulin resistance, visceral fat mass accumulation, and cognitive impairment, by overlapping mechanisms. OBJECTIVE: To test the hypothesis that alternate-day caloric restriction (ADCR) with overall energy balance would reduce insulin resistance and accumulation of visceral fat, in addition to improving cognitive functions, after eight consecutive days in bed. DESIGN: Healthy, lean men (n = 20) were randomized to 1) 8 days' bed rest with 3 daily iso-energetic meals (control group, n = 10); and 2) 8 days' bed rest with 25% of total energy requirements every other day and 175% of total energy requirements every other day (ADCR group). Oral glucose tolerance testing, DXA scans, magnetic resonance imaging of the abdomen and brain, VO max, and tests for cognitive function were performed before and after bed rest. In addition, daily fasting blood samples and 24 h glucose profiles by continuous glucose monitoring system were assessed during the 8 days bed rest period. RESULTS: Bed rest induced insulin resistance, visceral fat accumulation, and worsening of mood. No positive effects emerged from ADCR on these negative health outcomes. Compared to the control group, ADCR was associated with improved and steadier glycemic control on fasting days, and higher glycemic fluctuation and indices of insulin resistance on overeating days. CONCLUSIONS: In contrast to our hypothesis, the metabolic impairment induced by eight days of bed rest was not counteracted by ADCR with overall energy balance. |
| File Format | HTM / HTML |
| ISSN | 87507587 |
| e-ISSN | 15221601 |
| Journal | Journal of Applied Physiology |
| Language | English |
| Publisher | American Physiological Society |
| Publisher Date | 2016-11-23 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Applied Physiology Molecular Biology Biochemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physiology Physiology (medical) Sports Science |
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