What do carbohydrates and fatty acids primarily support during exercise?

• A. Muscle recovery
• B. Energy supply for exercise
• C. Bone health
• D. Heart rate regulation

Answer: (B)

Carbohydrates and fatty acids play a crucial role in providing energy during exercise. When physical activity occurs, the body requires a quick and efficient source of fuel to sustain muscular contractions and maintain performance levels. Carbohydrates are broken down into glucose, which is readily used by muscles for immediate energy, especially during high-intensity activity. Fatty acids, on the other hand, are utilized primarily during longer-duration and lower-intensity exercises, serving as a significant energy source for endurance activities.

The primary function of both carbohydrates and fatty acids is to ensure that there is sufficient energy available to support sustained physical activity, which is essential for performance in various sports and exercise routines. Understanding this energy supply mechanism is fundamental to optimizing athletic performance and training regimens.