期刊
JOURNAL OF NUTRITION HEALTH & AGING
卷 18, 期 10, 页码 888-893出版社
SPRINGER FRANCE
DOI: 10.1007/s12603-014-0481-9
关键词
Physical activity; weight loss; aerobic exercise; postmenopausal women
资金
- Baltimore VA Medical Research Service
- VA Research Career Scientist Award
- VA Advance Health Postdoctoral Fellowship
- Department of Veterans Affairs
- Veterans Affairs Medical Center Baltimore Geriatric Research, Education and Clinical Center (GRECC)
- National Institute on Aging (NIA) [R01-AG19310, R01-AG20116]
- Claude D. Pepper Older Americans Independence Center [P30-AG028747, 5T32-AG000219-18]
- NIDDK Mid-Atlantic Nutrition Obesity Research Center [NIH P30-DK072488]
- GCRC of the University of Maryland, Baltimore [5M01RR016500]
Objectives: To compare the effects of weight loss with and without exercise on 1) dietary prescription adherence and 2) non-structured activity in postmenopausal women. Longitudinal study. Clinical research setting with facility based exercise and nutrition education. Overweight and obese women, 45-76 years old. 6 months of weight loss alone (WL; N=38) or with aerobic exercise (AEX+WL; N=41). Cardiorespiratory fitness (VO(2)max), resting metabolic rate (RMR), seven day food intake, and physical activity (by Actical accelerometers worn in a subset subgroup: WL: N=10; AEX+WL: N=15) were assessed before and after the interventions. Both interventions resulted in similar weight loss (9%) and no signficant changes in RMR, while only the AEX+WL group improved VO(2)max (10%). At baseline, the AEX+WL group consumed slightly more protein than the WL group (P < 0.01). Macronutrient intake did not change following AEX+WL, but the WL group decreased their fat intake and increased their carbohydrates and protein intakes (Ps < 0.05), which resulted in similar macronutrient intakes between groups post-intervention. Weekday total activity counts decreased 22% (P < 0.05) following WL. This change tended (P=0.07) to be different than the lack of change in non-structured activity observed following AEX+WL. Although similar dietary adherence was observed, these data suggest that postmenopausal women undergoing weight loss may benefit from the addition of exercise to prevent the decline in non-structured activity observed following weight loss alone.
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