Cortisol, often known as the 'stress hormone,' plays a pivotal role in our fitness regimes. Contrary to popular belief, acute increases in cortisol are essential for muscle remodelling, a process critical for muscle growth and repair.
This response is especially pronounced during intensive workouts, where cortisol helps in removing damaged proteins, paving the way for new muscle development (Essentials of Strength Training and Conditioning, 4th Ed】.
Resistance exercises that feature short rest periods or a high volume of work are known to spike cortisol levels significantly. However, with regular training, the body adapts to these changes, balancing cortisol's effects and maintaining the beneficial influence of testosterone on muscle growth (Essentials of Strength Training and Conditioning, 4th Ed】.
Cortisol levels also follow a circadian rhythm, peaking in the morning and gradually decreasing throughout the day. This pattern is crucial in understanding how our bodies respond to exercise at different times, influencing energy production and muscle response (Essentials of Strength Training and Conditioning, 4th Ed】.
In summary, cortisol is not just a marker of stress but a vital component in muscle development and fitness. So, when you're pushing through your next workout, remember the important role cortisol plays in helping you achieve those gains!
