| | |  | | | | Record from Web of Science® | | | | | | |
| How much physical activity is needed to minimize weight gain in previously obese women? |
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| Author(s): Schoeller DA, Shay K, Kushner RF |
| Source: AMERICAN JOURNAL OF CLINICAL NUTRITION Volume: 66 Issue: 3 Pages: 551-556 Published: SEP 1997 |
| Times Cited: 133 References: 31 |
| Abstract: Exercise is frequently identified as a predictor of weight maintenance after elective weight loss in retrospective studies of treatments for obesity. We conducted a prospective study to test whether physical activity measured soon after weight loss predicted weight maintenance and to determine how much physical activity was required to optimize maintenance. Thirty-two women [mean (+/- SD) age, 38 +/- 7 y; body mass index (in kg/m(2)), 24 +/- 3] were recruited through local advertising within 3 mo of reaching their target for weight loss (23 +/- 9 kg). Total energy expenditure (TEE) was measured by the doubly labeled water method. Postabsorptive resting metabolic rate (RMR)and postprandial RMR [expressed as thermic effect of a meal (TEM)] were measured by respiratory gas exchange. Women in the physically active, group (ratio of TEE to RMR = 1.89 +/- 0.08) gained 2.5 +/- 3.1 kg during the 12 mo after reaching their target for weight loss, moderately active women (TEE:RMR = 1.64 +/- 0.05) gained 9.9 +/- 10.5 kg, and sedentary women (TEE:RMR = 1.44 +/- 0.08) gained 7.0 +/- 5.9 kg (P < 0.01). Retrospective analyses of weight regain as a function of energy expended in physical activity indicated a threshold for weight maintenance of 47 kJ.kg body wt(-1).d(-1). This corresponds to an average of 80 min/d of moderate activity or 35 min/d of vigorous activity added to a sedentary lifestyle. |
| Document Type: Article |
| Language: English |
Addresses:
1. UNIV CHICAGO, COMM HUMAN NUTR & NUTR BIOL, CHICAGO, IL 60637 USA
2. UNIV CHICAGO, DEPT MED, CHICAGO, IL 60637 USA |
| Publisher: AMER SOC CLINICAL NUTRITION, 9650 ROCKVILLE PIKE, SUBSCRIPTIONS, RM L-2310, BETHESDA, MD 20814-3998 |
| Subject Category: Nutrition & Dietetics |
| IDS Number: XT049 |
| ISSN: 0002-9165 |
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