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?

Question

Quizplus · Accepted Answer

The graph shows that the group with a high-carbohydrate diet performed the best, indicating that maintaining elevated blood sugar levels can help improve endurance performance. However, it would be an oversimplification to conclude that endurance is entirely related to diet or that a specific percentage drop in blood glucose is associated with improved endurance. Therefore, option A and C can be eliminated. Option D is also incorrect, as the graph clearly shows a difference in performance based on different diets.

Three Groups of Cyclists Consumed Three Different Types of Diets