How hydration influences VO₂ max
The electrolyte connection few athletes account for.
LMNT promotes an article discussing the influence of hydration on VO₂ max, highlighting the importance of sodium in maintaining blood volume and preserving VO₂ max during exercise. The brand emphasizes the impact of dehydration on athletic performance, citing a study that found a 2% drop in VO₂ max in recreational athletes who skipped fluids. LMNT encourages readers to learn more about optimizing hydration for better performance.
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Person sweating and exercising with the title "How Hydration Affects VO₂ Max"
You've got the intervals dialed in. Zone 2 minutes logged. Recovery on point. So why isn't your VO₂ max budging?
Hydration is a variable many athletes don’t troubleshoot, but it can cap your health goals even when everything else is working. Here’s why…
Your heart and blood vessels run a closed loop: blood comes back to the heart, swings through the lungs to grab oxygen, then gets pumped out to your working muscles.
More oxygen-rich blood moved per minute means more fuel for those muscles to burn.
Dehydration throws a wrench in that loop. Less blood returns to the heart, so it fills less completely and ejects less blood with every beat. Your heart rate climbs to compensate, but during hard efforts, that compensation only goes so far.
For example, in one study, recreational athletes who skipped fluids for an extended amount of time saw an average 2% drop in VO₂ max during eight to ten minutes of hard cycling compared to when they were hydrated.
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