What is the expected adjustment in core temperature during a general warm-up?

During a general warm-up, the expected adjustment in core temperature is an increase. This increase is primarily due to the elevated muscle activity during the warm-up, which enhances metabolic processes and promotes circulation. As muscles contract and exert energy, they produce heat as a byproduct, leading to a rise in core temperature.

Warming up is crucial as it prepares the body for more intense physical activity, improving muscle elasticity, joint range of motion, and overall performance while reducing the risk of injury. The increase in core temperature facilitates an optimal environment for these physiological adaptations, ensuring that the body can respond effectively to the demands of subsequent exercise.

The other choices relate to static or negative adjustments in temperature, which would not align with the expected physiological responses during an active warm-up period.