When they tested these ultra endurance runners on a treadmill, Davitt and his colleagues found no difference in aerobic capacity between the two groups. Their diets supplied 58% of their calories from carbohydrates. The other ten men followed the standard recommendations about carbo-loading before a big race. “Blood is being shunted away from the gut.” Some people get sick to their stomachs if they eat or even drink carbohydrates during intense exercise, he said. That way they don’t have to carry food with them, or even stop to eat during the competition, the lead researcher, Patrick M.
They did that so that their bodies would shift to extracting more energy from fat. They got only 11% of their calories from carbs. Ten had spent at least six months living on a low-carb diet. All 20 men in the study had completed a 50-mile race. One study looked at the effects on long-distance - and I mean really long-distance – runners. The bottom line: low-carb diets work fine for endurance. So I was fascinated to talk to some researchers at the ACSM Annual Meeting in May who have examined the effects of a low-carb diet for athletes. In fact, the American College of Sports Medicine (ACSM) personal training text book recommends pancakes as a healthy alternative when traveling. Just about everyone I know has at least flirted with a low-carbohydrate diet - Atkins, Zone, Paleo, Southbeach - and lots swear by the weight-loss effects.īut a low-carb diet for athletes goes against the standard recommendations of sports nutritionists.
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