What is commonly elevated due to overtraining?

Overtraining typically leads to a state of fatigue and a decrease in overall performance, which can have a variety of physiological effects on the body. One of the most notable indicators of overtraining is an elevation in resting heart rate and blood pressure. When an individual undergoes excessive training without adequate recovery, the body experiences increased stress and strain, which prompts the sympathetic nervous system to become overactive. This heightened state can lead to an increase in heart rate even at rest, as the body works harder to maintain homeostasis. Likewise, blood pressure can also rise as the cardiovascular system adjusts to the heightened demands placed upon it during periods of overtraining.

In contrast, muscle strength, flexibility, and muscle endurance typically experience declines or stagnation due to inadequate recovery and overuse. Muscle strength may be compromised as fatigue sets in, flexibility can decrease due to muscle tightness from constant exertion, and muscle endurance is affected negatively due to insufficient recovery time. Therefore, the correct focus on resting heart rate and blood pressure elevating due to overtraining effectively highlights how the body responds physiologically when pushed beyond its limits without proper rest.