Three groups of cyclists consumed three different types of diets: high-carbohydrate; a diet mixed in carbohydrates, fat, and protein; or a diet higher in protein and fat. The average time each group could spend cycling over a six-hour period is shown in the accompanying graph. What conclusion from the data would help an athlete or trainer improve performance?
A) Endurance is entirely related to diet.
B) Maintaining elevated blood sugar improves performance.
C) An early 50 percent drop in blood glucose is associated with improved endurance.
D) Diet is not at all related to endurance.

Question

Three groups of cyclists consumed three different types of diets: high-carbohydrate; a diet mixed in carbohydrates, fat, and protein; or a diet higher in protein and fat. The average time each group could spend cycling over a six-hour period is shown in the accompanying graph. What conclusion from the data would help an athlete or trainer improve performance?
A) Endurance is entirely related to diet. 
B) Maintaining elevated blood sugar improves performance. 
C) An early 50 percent drop in blood glucose is associated with improved endurance. 
D) Diet is not at all related to endurance.

Quizplus · Accepted Answer

The data suggests that the group with a high-carbohydrate diet performed the best, indicating that maintaining elevated blood sugar levels through a high-carbohydrate diet may improve performance. The other options are not supported by the data.

Three Groups of Cyclists Consumed Three Different Types of Diets