Separate Effects of Exercise Amount and Intensity on Adipose Tissue and Skeletal Muscle Mass in Adults with Abdominal Obesity
| Autor: | Theresa E. Cowan, Robert Ross, Andrea M. Brennan, Paula J. Stotz, Benoît Lamarche, John Clarke |
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| Rok vydání: | 2018 |
| Předmět: |
Male
medicine.medical_specialty Calorie Endocrinology Diabetes and Metabolism Medicine (miscellaneous) Adipose tissue 030209 endocrinology & metabolism Article 03 medical and health sciences 0302 clinical medicine Endocrinology Internal medicine Activities of Daily Living medicine Humans Exercise physiology Muscle Skeletal Exercise Abdominal obesity Nutrition and Dietetics business.industry VO2 max Skeletal muscle 030229 sport sciences Middle Aged medicine.disease Obesity medicine.anatomical_structure Adipose Tissue Obesity Abdominal Cardiology Abdomen Female medicine.symptom business |
| Zdroj: | Obesity (Silver Spring, Md.) |
| ISSN: | 1930-739X 1930-7381 |
| Popis: | OBJECTIVE To determine the effects of exercise amount (kilocalories per session) and intensity (percent of maximal oxygen consumption [% VO2 peak]) on adipose tissue (AT) and skeletal muscle (SM) in adults with abdominal obesity. METHODS Participants (n = 103; 52.7 ± 7.6 years) were randomized to the following groups: control; low-amount, low-intensity exercise (180 kcal/session [women] and 300 kcal/session [men] at 50% VO2 peak); high-amount, low-intensity exercise (HALI; 360 kcal/session [women] and 600 kcal/session [men] at 50% VO2 peak); or high-amount, high-intensity exercise (HAHI; 360 kcal/session [women] and 600 kcal/session [men] at 75% VO2 peak) for 24 weeks. Activities of daily living were measured by accelerometry. Magnetic resonance imaging was used to measure tissue mass. RESULTS Reduction in all AT depots was greater in the exercise groups compared with control (P 0.05). Visceral and abdominal subcutaneous AT reduction was uniform across the abdomen. Total SM mass did not change with exercise compared with control (P = 0.32). However, while lower-body SM mass was maintained (P = 0.32), upper-body SM mass in the high-amount, high-intensity and the high-amount, low-intensity groups was reduced compared with controls (P |
| Databáze: | OpenAIRE |
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