By what percentage does the body's work capacity decrease at even 2% dehydration?

The correct percentage indicates that a decrease in work capacity occurs with dehydration, emphasizing the significant impact that even mild levels of dehydration can have on physical performance. When the body is dehydrated by just 2%, performance capacity can decline by approximately 12-15%.

Hydration is crucial for maintaining optimal body function, especially during physical activity. Dehydration can affect endurance, strength, and overall energy levels, translating into decreased work capacity. This specific range highlights the importance of maintaining adequate fluid levels for athletes and individuals engaged in regular exercise.

While lower percentages could be associated with less severe dehydration, the 12-15% range effectively captures the notable consequences of dehydration on performance. Understanding this relationship is fundamental for personal trainers to guide clients in appropriate hydration strategies to enhance their workout efficiency and overall health.