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Recommendations for hydration surrounding exercise (use a labeled blender bottle to make measurements easier)
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Prior to exercise: 14-22 oz of water (spread out over 2 hours prior)
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During exercise: 6-12 oz water +110mg sodium every 20 minutes
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Post exercise: 16-24 oz of water per 1lb lost during exercise
Disclaimers
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These recommendations are in addition to the 125oz and 91 oz of water that should be ingested each day. (Foods also contains some water)
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many people may already have a diet high in sodium adding addition sodium could be harmful
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Sweat rates and concentrations can differ between individuals working with a specialist in the field is recommended
References
Penney, S. (n.d.). Recommended daily water intake for health and performance. NASM. https://blog.nasm.org/nutrition/hydration-health-performance
Perishable. (2024, April 8). Fluids and hydration. U.S. Anti-Doping Agency (USADA). https://www.usada.org/athletes/substances/nutrition/fluids-and-hydration/
Hydration guidelines - sports nutrition topics. (n.d.). https://www.nata.org/sites/default/files/hydration-guidelines_handout.pdf