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Am J Clin Nutr. 2006 Dec;84(6):1317-23.

Effect of lifestyle intervention on metabolic coronary heart disease risk factors in obese older adults.

Author information

  • 1Geriatrics and Nutritional Science and the Center for Human Nutrition, Washington University School of Medicine, St Louis, MO 63108, USA. dvillare@im.wustl.edu

Abstract

BACKGROUND:

Coronary heart disease (CHD) risk factors increase with age and body mass index (BMI; in kg/m2). However, whether lifestyle intervention ameliorates metabolic CHD risk factors in obese older adults is unknown.

OBJECTIVE:

The objective was to determine whether lifestyle intervention improves metabolic CHD risk factors in obese older adults.

DESIGN:

A 6-mo outpatient randomized controlled trial was conducted in obese (BMI >or= 30) older (>or=65 y) adults randomly assigned to diet and exercise therapy (treatment group; n = 17) or no therapy (control group; n = 10). The main outcomes were CHD risk factors.

RESULTS:

Body weight decreased by 8.4% (8.2 kg) in the treatment group; weight did not change significantly (0.7 kg) in the control group (P < 0.001 between groups). Changes between the control and treatment groups, respectively, in waist circumference (1 and -10 cm), plasma glucose (4 and -4 mg/dL), serum triacylglycerols (0 and -45 mg/dL), and systolic (-2 and -10 mm Hg) and diastolic (0 and -8 mm Hg) blood pressure were different (P < 0.05 for all). The number of subjects with the metabolic syndrome decreased by 59% in the treatment group but did not change significantly in the control group (P < 0.05). Serum free fatty acids increased by 10 micromol/L in the control group and decreased by 99 micromol/L in the treatment group (P < 0.05). Changes between the control and treatment groups, respectively, in C-reactive protein (0.8 and -2.5 mg/L) and interleukin 6 (1.6 and -2.4 pg/mL) were different (P < 0.05 for both).

CONCLUSIONS:

Lifestyle intervention decreases multiple metabolic CHD risk factors simultaneously in obese older adults.

PMID:
17158411
[PubMed - indexed for MEDLINE]
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