CSSD Practice Exam 2025 – Complete Study Resource

In endurance sports, consuming fluids with added carbohydrates is recommended because carbohydrates serve as a primary source of energy for athletes during prolonged physical activity. When participating in endurance events, the body relies heavily on glycogen stores for fuel. These stores can become depleted over time, especially during extended exercise sessions, leading to fatigue and decreased performance.

By incorporating carbohydrates into hydration strategies, athletes can provide a readily available energy source that helps sustain performance. This is particularly important during events lasting more than an hour, where replenishing energy is crucial to continue effectively. The addition of carbohydrates, such as those found in sports drinks, not only helps maintain energy levels but also facilitates fluid absorption, ensuring optimal hydration.

Vitamins, protein, and fiber do not offer the same immediate energy benefits during endurance activities. While vitamins are essential for various bodily functions and protein plays a critical role in recovery and muscle repair, they are not the primary focus for maintaining energy levels during prolonged exertion. Fiber may aid in digestion but is not typically recommended in hydration strategies for endurance sports due to its possible negative impact on gastrointestinal comfort during intense activity.