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- Title
Effects of a 6-week hypocaloric diet on changes in body composition, hunger, and subsequent weight regain in healthy young and older adults.
- Authors
Moriguti, Julio C.; Das, Sai K.; Saltzman, Edward; Corrales, Alberto; McCrory, Megan A.; Greenberg, Andrew S.; Roberts, Susan B.; Moriguti, J C; Das, S K; Saltzman, E; Corrales, A; McCrory, M A; Greenberg, A S; Roberts, S B
- Abstract
Recent studies have suggested a short-term impairment in the regulation of food intake in older adults, but further studies are needed to determine if a longer-term impairment exists and to identify underlying causes. Changes in body weight and composition were measured over a 6-week underfeeding study and a 6-month follow-up period in healthy young (n = 23) and older (OLD, n = 18) men and women. The young adults were either normal weight (YNW, n = 12) or overweight (YOW, n = 11). Energy intakes during underfeeding were 896 +/- 18 (SEM) kcal less than weight-maintenance energy requirements determined prior to underfeeding. In addition, changes in perceived hunger during underfeeding were monitored in a subgroup (n = 19). OLD and YOW subjects lost significantly more weight during underfeeding than did YNW subjects (p = .025 and .000, respectively), and they did not gain back significant weight in the 6-month follow-up. In addition, OLD subjects reported a significantly lower frequency of hunger during underfeeding (p = .05). There was no significant difference among groups in the relationship between weight lost and fat-free mass lost. Healthy OLD adults have an impaired ability to regulate food intake over at least 6 months following underfeeding compared with YNW adults, and a reduction in their perceived frequency of hunger may be a contributing factor.
- Subjects
AGING &; nutrition; GERIATRIC nutrition; BODY weight; DIET; INGESTION; NUTRITION
- Publication
Journals of Gerontology Series A: Biological Sciences & Medical Sciences, 2000, Vol 55, Issue 12, pB580
- ISSN
1079-5006
- Publication type
journal article
- DOI
10.1093/gerona/55.12.B580