What is one of the key effects of dietary protein intake on exercise?

Dietary protein intake plays a crucial role in exercise performance and recovery, primarily through its effects on muscle repair and adaptation. When engaging in exercise, particularly resistance training, muscle fibers undergo stress and micro-tears, which can lead to soreness in the following days, commonly known as delayed onset muscle soreness (DOMS).

Consuming adequate dietary protein helps support muscle recovery by providing the necessary amino acids for the repair and rebuilding of muscle fibers. This not only aids in reducing muscle soreness but also contributes to longer-term adaptations in muscle mass and strength. As a result, individuals who consume sufficient protein after exercise often report less soreness and quicker recovery times.

The other options do not accurately reflect the key role of dietary protein in relation to exercise. Increased oxygen debt is more about the intensity of exercise and the body’s energy systems, while reducing muscle fatigue involves various factors beyond just protein intake, including hydration and carbohydrate availability. Glycogen depletion is a concern regarding carbohydrate intake and storage, not protein consumption. Therefore, focusing on the benefits of dietary protein highlights its significant contribution to reducing muscle soreness following exercise.