A tool designed to estimate nutritional needs during prolonged, strenuous running typically helps athletes determine the appropriate intake of carbohydrates, electrolytes, and fluids based on individual factors such as body weight, pace, and duration of the run. A runner might use such a tool to determine how many energy gels or sports drinks to consume per hour during a race.
Proper energy management is critical for optimal performance and preventing issues like hitting the wall or experiencing dehydration. Historically, runners relied on generalized advice, but the rise of personalized sports nutrition has led to tools that offer more precise recommendations, allowing for a more strategic approach to fueling. This can significantly impact race outcomes and overall athlete well-being.