In training to run a marathon this summer, you want to determine how much fluid to drink during training sessions. Your weight at the beginning of every training session is 70 kg. At the end of every training session you weigh 68 kg. How many cups of fluid are necessary replenish these losses?

Question

Quizplus · Accepted Answer

The weight lost during the training session is 2 kg (70 kg - 68 kg). Since 1 kg of body weight lost is roughly equivalent to 1 liter (or 1,000 mL) of fluid loss, the total fluid loss is 2 liters (2,000 mL). To replenish these losses, one would need to drink 2,000 mL of fluid. Since 1 cup is approximately 250 mL, 2,000 mL equates to about 8 cups of fluid.

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