No Sex Difference in Body Fat in Response to Supervised and Measured Exercise
| Autor: | Graham Finlayson, Catherine Gibbons, John E. Blundell, Phillipa Caudwell, Neil A. King, Mark Hopkins |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Adult
Male medicine.medical_specialty media_common.quotation_subject Appetite Adipose tissue Physical Therapy Sports Therapy and Rehabilitation Overweight Body Mass Index Oxygen Consumption Sex Factors Internal medicine medicine Humans Orthopedics and Sports Medicine Obesity Exercise physiology Exercise Cardiovascular fitness media_common Analysis of Variance business.industry Calorimetry Indirect medicine.disease Endocrinology Adipose Tissue Area Under Curve Body Composition Female Analysis of variance medicine.symptom Energy Intake business Body mass index |
| Zdroj: | Medicine & Science in Sports & Exercise. 45:351-358 |
| ISSN: | 0195-9131 |
| DOI: | 10.1249/mss.0b013e31826ced79 |
| Popis: | It is often reported that females lose less body weight than males do in response to exercise. These differences are suggested to be a result of females exhibiting a stronger defense of body fat and a greater compensatory appetite response to exercise than males do.This study aimed to compare the effect of a 12-wk supervised exercise program on body weight, body composition, appetite, and energy intake in males and females.A total of 107 overweight and obese adults (males = 35, premenopausal females = 72, BMI = 31.4 ± 4.2 kg·m(-2), age = 40.9 ± 9.2 yr) completed a supervised 12-wk exercise program expending approximately 10.5 MJ·wk(-1) at 70% HRmax. Body composition, energy intake, appetite ratings, RMR, and cardiovascular fitness were measured at weeks 0 and 12.The 12-wk exercise program led to significant reductions in body mass (males [M] = -3.03 ± 3.4 kg and females [F] = -2.28 ± 3.1 kg), fat mass (M = -3.14 ± 3.7 kg and F = -3.01 ± 3.0 kg), and percent body fat (M = -2.45% ± 3.3% and F = -2.45% ± 2.2%; all P0.0001), but there were no sex-based differences (P0.05). There were no significant changes in daily energy intake in males or females after the exercise intervention compared with baseline (M = 199.2 ± 2418.1 kJ and F = -131.6 ± 1912.0 kJ, P0.05). Fasting hunger levels significantly increased after the intervention compared with baseline values (M = 11.0 ± 21.1 min and F = 14.0 ± 22.9 mm, P0.0001), but there were no differences between males and females (P0.05). The exercise also improved satiety responses to an individualized fixed-energy breakfast (P0.0001). This was comparable in males and females.Males and premenopausal females did not differ in their response to a 12-wk exercise intervention and achieved similar reductions in body fat. When exercise interventions are supervised and energy expenditure is controlled, there are no sex-based differences in the measured compensatory response to exercise. |
| Databáze: | OpenAIRE |
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