Which of the following is not a normal hormonal response to resistance training?

Resistance training induces several hormonal responses that help facilitate muscle growth and adaptation. Among these responses, the release of growth hormone typically increases with resistance training intensity, thereby aiding in muscle protein synthesis and recovery. The release of cortisol is also a normal response, as it helps regulate metabolism and manage stress during high-intensity workouts. Additionally, thyroxine, which plays a key role in metabolism and energy balance, may also see an increase as the body adapts to training.

However, during high-intensity resistance training, the expectation is that epinephrine (also known as adrenaline) would actually increase rather than decrease. This hormone is crucial for enhancing energy availability and cardiovascular responses during intense exercise. A reduction in epinephrine during high-intensity training would be contrary to the expected physiological adaptations associated with such efforts. Thus, indicating that a reduced release of epinephrine with high-intensity training is not consistent with typical hormonal behavior during resistance exercise.