A physically active lifestyle, i.e., increasing physical activity (PA) or reducing sedentary behavior, and improvements in cardiorespiratory fitness independently have numerous health benefits. PA for promoting good health should be prescribed based on the exercise intensity, duration, and frequency. Several consensus statements recommend engaging in daily PA at an intensity of more than three metabolic equivalents to reduce the risk of major chronic diseases. However, the effects of increasing PA using different PA indicators (e.g., intensity or duration) on several health outcomes remain unclear. This paper highlighted habitual PA prescription for eliciting a more desirable physiological adaptation for preventing chronic diseases, while focusing on recent studies regarding PA intensity and epoch length.
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