Effects of intermittent fasting and chronic swimming exercise on body composition and lipid metabolism
| Autor: | Tiago Eugênio Oliveira da Silva, Ruan Carlos Macêdo de Moraes, Moacir Marocolo, Alex Soares Marreiros Ferraz, Guilherme Vannucchi Portari |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
medicine.medical_specialty Physiology Endocrinology Diabetes and Metabolism 030204 cardiovascular system & hematology Biology 03 medical and health sciences 0302 clinical medicine Endurance training Physical Conditioning Animal Physiology (medical) Internal medicine Brown adipose tissue Intermittent fasting medicine Animals Aerobic exercise Circadian rhythm Rats Wistar Swimming Nutrition and Dietetics Lipid metabolism General Medicine Lipid Metabolism Thermogenin Rats 030104 developmental biology medicine.anatomical_structure Endocrinology Body Composition Physical Endurance Food Deprivation Thermogenesis |
| Zdroj: | Applied Physiology, Nutrition, and Metabolism. 42:1341-1346 |
| ISSN: | 1715-5320 1715-5312 |
| Popis: | Intermittent fasting protocol (IFP) has been suggested as a strategy to change body metabolism and improve health. The effects of IFP seem to be similar to aerobic exercise, having a hormetic adaptation according to intensity and frequency. However, the effects of combining both interventions are still unknown. Therefore, the aim of the present study was to evaluate the effects of IFP with and without endurance-exercise training on body composition, food behavior, and lipid metabolism. Twenty-week-old Wistar rats were kept under an inverted circadian cycle of 12 h with water ad libitum and assigned to 4 different groups: control group (ad libitum feeding and sedentary), exercise group (ad libitum feeding and endurance training), intermittent fasting group (IF; intermittent fasting and sedentary), and intermittent fasting and exercise group (IFEX; intermittent fasting and endurance training). After 6 weeks, the body weight of IF and IFEX animals decreased without changes in food consumption. Yet, the body composition between the 2 groups was different, with the IFEX animals containing higher total protein and lower total fat content than the IF animals. The IFEX group also showed increases in total high-density lipoprotein cholesterol and increased intramuscular lipid content. The amount of brown adipose tissue was higher in IF and IFEX groups; however, the IFEX group showed higher expression levels of uncoupling protein 1 in this tissue, indicating a greater thermogenesis. The IFP combined with endurance training is an efficient method for decreasing body mass and altering fat metabolism, without inflicting losses in protein content. |
| Databáze: | OpenAIRE |
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