What is the average normal sweat loss during one hour of exercise?

The average normal sweat loss during one hour of exercise varies based on several factors such as intensity, environmental conditions, and individual differences. Typically, a healthy and fit person might lose around 1.0 to 1.5 liters of sweat per hour of moderate to intense exercise, which aligns with current literature on hydration and athletic performance.

Therefore, identifying 1.5 L/hour as a common average reflects the physiological responses of the body during physical activity under standard conditions. This amount is significant enough to highlight the necessity of maintaining proper hydration to support optimal performance and prevent heat-related illnesses.

While the options representing lower or higher rates of sweat loss can occur under specific circumstances or among different populations, the average response for many athletes during vigorous exercise aligns closely with the 1.5 L/hour benchmark. Understanding this average helps in formulating hydration strategies before, during, and after exercise.