iamAERO wrote:
Makes it seem like my previous race nutrition was an educated guess at best.
Bingo. It was. This is precisely why sweat testing is such a risky endeavor. Most common benefit: "you need more salt." Most common detriment: over adherence to a singular plan for every training session instead of adapting over time and for each training session.
Not only will your sweat rate and sweat sodium concentration change with your training status, it'll change based on recent training stimulus, current weather and recent past weather, etc.
It's why in the app we're writing, the intuitive rating about how much you'll sweat ended up being a far more elegant solution than monitoring, tracking over time, or one-off testing. Turns out, people's intuition starts out pretty good and improves over time. Eventually I hope we'll have enough data (and brains) to predict sweat rates and fine tune fluid recommendations based on historical individual (and maybe group) user data, all before each training session or race, so folks can just plan and prep accordingly.
Dr. Alex Harrison | Founder & CEO | Sport Physiology & Performance PhD
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