WHAT IS SECOND WIND ?
Q: What is a ”second wind”? A: No matter how fit you are, the first few minutes into vigorous exercise you’ll feel somewhat out of breath, and your muscles may ache. Your body isn’t able to transport oxygen to the active muscles quickly enough. As a result, your muscles burn carbohydrates anaerobically, causing an increase in lactic acid production. Gradually, your body makes the transition to aerobic metabolism and begins to burn nutrients (carbohydrates and fats) aerobically. This shift over to aerobic metabolism coincides with your getting ”back in stride” (a.k.a. the ”second wind”). The more you train and the more fit you become, the sooner you will get your ”breath” back and reach an aerobic steady state that you can maintain for a relatively extended duration. Source: Bryant, Cedric X. 101 Frequently Asked Questions about “Health & Fitness” and “Nutrition & Weight Control”. Sagamore Publishing, 1999. ————————————————————————
