Introduction to Lifetime Fitness Practice Exam 2025 - Free Fitness Practice Questions and Study Guide

The role of antioxidants in physical fitness is primarily centered on their ability to help protect against oxidative stress. During physical activity, the body produces free radicals, which are unstable molecules that can cause cellular damage. Antioxidants neutralize these free radicals, thereby preventing potential damage to muscles and other tissues. This protective effect supports recovery after exercise, helps reduce inflammation, and may enhance overall athletic performance.

While energy levels are crucial in fitness, antioxidants do not directly boost energy; instead, they support overall health, which can indirectly influence energy levels. Furthermore, antioxidants do not significantly increase muscle mass on their own; muscle growth requires a combination of resistance training and adequate nutrition. Lastly, while antioxidants can have beneficial effects on mental health by reducing inflammation and oxidative damage in the brain, their importance extends far beyond just that aspect — they are critical for physical health, especially in active individuals.