A cool-down involves a brief time period at the end of an exercise session during which the physical activity of the body is normally gradually reduced to almost its resting level. A cool-down therefore often involves a period of low-impact aerobic exercise which is gradually reduced, followed by a few gentle stretching activities. This has a number of effects. The gentle aerobic activity helps to reduce any metabolic waste products which may have accumulated over the exercise session. The benefits of an active recovery are believed to be related to the muscles continuing to receive a more extensive supply of oxygenated blood, which will also assist with the removal of metabolic waste products. During exercise the blood is that it is pumped around the body by the action with the heart. However, the blood is assisted in its return to the heart via the venous system and muscular contraction. If an athlete stops workouts suddenly, the heart continues to beat fast, sending blood around the body, but, since exercise has ceased, the blood is don't assisted in its return to the cardiovascular system. It is suggested that this is one of several reasons why people sometimes feel faint after exercise. During a cool-down, the heart rate is gradually lowered to its resting level and the venous return continues to be assisted by the actively contracting muscles, thereby preventing this problem.Trane XL14i PriceTrane XL20i ReviewTrane xb13 ReviewTrane XL15i Review |