Which indicates under-hydration during practice?

Which indicates under-hydration during practice?

• A. Stable body weight
• B. Clear, light-colored urine
• C. Weight loss during practice and dark urine
• D. No thirst

Answer: (C)

Under-hydration during practice is indicated when there is actual fluid loss that isn’t fully replaced. If an athlete weighs less at the end of practice than at the start, that weight change largely reflects sweat loss. Dark, concentrated urine means the body is conserving water and urine output is reduced, which happens with dehydration. In combination, these two signs strongly point to under-hydration. In contrast, stable body weight suggests fluids are being balanced, clear, light-colored urine indicates good hydration, and thirst is not a reliable sole indicator because thirst can lag behind actual fluid deficit, so you may already be dehydrated before you feel thirsty. Therefore, weight loss during practice with dark urine best indicates under-hydration.

Under-hydration during practice is indicated when there is actual fluid loss that isn’t fully replaced. If an athlete weighs less at the end of practice than at the start, that weight change largely reflects sweat loss. Dark, concentrated urine means the body is conserving water and urine output is reduced, which happens with dehydration. In combination, these two signs strongly point to under-hydration. In contrast, stable body weight suggests fluids are being balanced, clear, light-colored urine indicates good hydration, and thirst is not a reliable sole indicator because thirst can lag behind actual fluid deficit, so you may already be dehydrated before you feel thirsty. Therefore, weight loss during practice with dark urine best indicates under-hydration.