28 Nov '15, 8pm

راجع المصدر من فضلك: https://t.co/7n4MjRPjGP

Good point! Let's define "large meal" as a meal containing more than 600 calories with several ounces of protein or meat, carbohydrates, vegetables, and dessert—a typical dinner or large lunch. If you have a meal like this, you should wait three to four hours before running. Why? Because after a large meal, the body must digest this food. Digestion requires a rather large amount of the body's energy. To facilitate the digestion process, the body directs more blood flow to the stomach and other internal organs to accomplish this work—which is also the reason we often feel sleepy following a large meal. The increased blood flow to internal organs means less blood flow is available to our large muscle groups, like our legs and arms. When we exercise, the opposite occurs; blood flow is redirected from internal organs to the large working muscles to provide the necessary energy...

Full article: http://www.runnersworld.com/for-beginners-only/how-long-s...

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