Wednesday, June 23, 2010
"Sports Drinks Make Men And Women More Alike"
"That's an intriguing headline. What the heck does it mean? I'll tell you. It is a well-established fact that women rely more on fat and less on muscle glycogen than men do to provide energy for moderate-intensity exercise. But a new study in Medicine & Science in Sports & Exercise reports that this gender difference in fuel selection disappears when carbohydrate is consumed during exercise. During moderate-intensity exercise without carbohydrate intake, men were found to get 62 percent of their energy from carbohydrate, women 53 percent. But when they drank a sports drink during exercise, carbohydrate burning increased to 74 percent in men and 77 percent in women. The much larger jump in women was due to the fact that consuming carbs during exercise caused a much smaller decrease in the use of muscle glycogen in women than in men."
An interesting clipping from Matt Fitzgerald's website, www.racingweight.com