Essentials Of Strength Training And Conditioning Practice Test

Which hormones are catecholamines that may be elevated in acute anabolic responses after anaerobic training?

Epinephrine and norepinephrine IGF-I Growth Hormone Testosterone

Correct Answer:

Epinephrine and norepinephrine

Explanation:

When the body performs high-intensity, anaerobic work, the sympathetic nervous system triggers a rapid release of catecholamines to support immediate energy needs. The main catecholamines are epinephrine and norepinephrine. They rise quickly during and after intense efforts, promoting glycogenolysis and lipolysis to supply glucose and fatty acids, increasing heart rate, and boosting blood flow to working muscles. This immediate hormonal surge creates an environment that supports short-term performance and quick metabolic adjustments. The other options—IGF-I, growth hormone, and testosterone—are anabolic signals as well, but they are not catecholamines and are involved in longer-term adaptations rather than the immediate response seen with anaerobic stimulation.

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