Three Groups of Cyclists Consumed Three Different Types of Diets

question 17

Multiple Choice

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.

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Definitions:

Insulin

A hormone produced by the pancreas that regulates blood sugar levels by facilitating the uptake of glucose into cells.

Thyroid Gland

An endocrine gland in the neck that produces hormones regulating growth and development through the rate of metabolism.

Iodine

A chemical element with antiseptic properties and a key component in thyroid hormones, necessary for proper metabolic functions.

Adrenal Tumors

Abnormal growths that occur in the adrenal glands, which can be benign or malignant and may affect hormone production.