Abstract
We review the current concepts about energy expenditure and evaluate the physical activity (PhA) in the context of this knowledge and the available literature. Regular PhA is correlated with low body weight and low body fat mass. The negative fat balance is probably secondary to this negative energy balance. Nonexercise activity thermogenesis (NEAT) and physical activity, that is crucial for weight control, may be important in the physiology of weight change. An intriguing doubt that remains unresolved is whether changes in nutrient intake or body composition secondarily affect the spontaneous physical activity.
Highlights
Exercise physiology and the salutatory effects on weight loss, fat reduction, and insulin sensitivity have been described in great detail
We review the current concepts about energy expenditure and evaluate the physical activity (PhA) in the context of this knowledge and the available literature
E Physical training, consisting of 20 min cycling or running, 20 min swimming at submaximal heart rate, followed by 20 min of warm up/cool down three times per week for 4 wk, resulted in a significant reduction in body weight and Rpercentage body fat, and this was associated with improved influences of fat mass, age, and gender [5]
Summary
Exercise physiology and the salutatory effects on weight loss, fat reduction, and insulin sensitivity have been described in great detail. The 24-hour energy expenditure, ically the thermic effect of carbohydrate, has been shown to whether measured in a respiratory chamber [3] or by using decrease in obese subjects [10, 11]. This decrease may, be secondary to obesitybody weight. We review the current concepts about energy expenditure and evaluate the PhA in the context of this knowledge and the available literature
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