Exercise-Induced Reduction in Obesity and Insulin Resistance in Women: a Randomized Controlled Trial
| Autor: | Katherine Kilpatrick, Robert Ross, SoJung Lee, Thanh-Binh Nguyen-Duy, Jody Dawson, Suzy L. Wong, Ian Janssen, Ann-Marie Kungl, Jennifer L. Kuk, Robert Hudson |
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| Rok vydání: | 2004 |
| Předmět: |
Adult
medicine.medical_specialty Diet Reducing Endocrinology Diabetes and Metabolism Physical fitness Medicine (miscellaneous) Adipose tissue Body Mass Index Endocrinology Insulin resistance Weight loss Internal medicine Abdomen Weight Loss medicine Humans Obesity Muscle Skeletal Exercise Abdominal obesity Anthropometry business.industry Public Health Environmental and Occupational Health Cardiorespiratory fitness Glucose Tolerance Test Middle Aged medicine.disease Magnetic Resonance Imaging Adipose Tissue Premenopause Physical Fitness Body Composition Body Constitution Female Insulin Resistance medicine.symptom Energy Intake business Body mass index Food Science |
| Zdroj: | Obesity Research. 12:789-798 |
| ISSN: | 1071-7323 |
| DOI: | 10.1038/oby.2004.95 |
| Popis: | To determine the effects of equivalent diet- or exercise-induced weight loss and exercise without weight loss on subcutaneous fat, visceral fat, and insulin sensitivity in obese women.Fifty-four premenopausal women with abdominal obesity [waist circumference 110.1 +/- 5.8 cm (mean +/- SD)] (BMI 31.3 +/- 2.0 kg/m2) were randomly assigned to one of four groups: diet weight loss (n = 15), exercise weight loss (n = 17), exercise without weight loss (n = 12), and a weight-stable control group (n = 10). All groups underwent a 14-week intervention.Body weight decreased by approximately 6.5% within both weight loss groups and was unchanged in the exercise without weight loss and control groups. In comparison with controls, cardiorespiratory fitness improved within the exercise groups only (p0.01). Reduction in total, abdominal, and abdominal subcutaneous fat within the exercise weight loss group was greater (p0.001) than within all other groups. The reduction in total and abdominal fat within the diet weight loss and exercise without weight loss groups was greater than within controls (p0.001) but not different from each other (p0.05). Visceral fat decreased within all treatment groups (p0.008), and these changes were not different from each other. In comparison with the control group, insulin sensitivity improved within the exercise weight loss group alone (p0.001).Daily exercise without caloric restriction was associated with substantial reductions in total fat, abdominal fat, visceral fat, and insulin resistance in women. Exercise without weight loss was also associated with a substantial reduction in total and abdominal obesity. |
| Databáze: | OpenAIRE |
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