Regarding the Effect of Caffeine on Exercise Performance, a Review

question 60

Multiple Choice

Regarding the effect of caffeine on exercise performance, a review of the available research suggests

• A) caffeine ingestion increases epinephrine levels during exercise and may exert a stimulating psychological effect.
• B) the perception of effort during exercise is heightened and thereby improves performance.
• C) abstaining from caffeine for 2-4 days prior to competition heightens the effect of caffeine when taken.
• D) caffeine may raise serum free fatty acids levels at rest just before exercise and increase the use of fat as an energy source during exercise.

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Definitions:

Melatonin

A hormone produced by the pineal gland in the brain, regulating sleep and wakefulness cycles.

Biological Clocks

Internal mechanisms that regulate the timing of biological processes and behaviors, aligning them with daily and seasonal rhythms.

Cholecystokinin

A hormone secreted by the small intestine that aids digestion by stimulating the gallbladder to contract and release stored bile into the intestine.

Core Body Temperature

The temperature of the internal environment of the body, which is maintained within a narrow range despite external temperature changes.