Using carbo-loading to increase the store of glycogen seems to benefit only those athletes who engage in aerobic activities that are?

A. Between 30 and 60 minutes
B. More than 90 minutes
C. Less than 20 minutes
D. Between 50 and 80 minutes.

I chose A for my first answer, but it told me I was wrong and I have looked all in the files and can't find it anywhere! Help would be greatly appreciated :)

Respuesta :

the aerobic activites that are between 50 to 80 mins. so the answer is D.

good luck 

B. More than 90 minutes.

Carbo-loading or carbohydrate loading is a strategy which endurance athletes use. This is to maximize the storage of enery or glycogen in the liver and muscles.

This strategy is recommended for those who join endurance events lasting more than  90 minutes.