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There doesn't seem to be a continuous lactate sensor on the market. Lactic acid production and/or clearance are definitely useful data w.r.t. exercise (many tra
by eoamk 1mo ago
There doesn't seem to be a continuous lactate sensor on the market. Lactic acid production and/or clearance are definitely useful data w.r.t. exercise (many training regimens talk about lactate thresholds) and also useful in in-patient settings.
No disagreement about AGC in the hospital -- there is a lot of lab/titration work in current clinical workflows for monitoring patient glucose levels.
- ijustlovemath 1mo agoLactate's available in the internal engineering data of these sensors, just not something that anyone has wanted to spend the time or money to qualify with the FDA. It essentially comes "for free" due to the chemical reaction the sensor uses.
- eoamk 1mo agoI think you are misinformed: the electrochemical reaction used by continuous glucose sensors relies on a glucose-specific enzyme and it doesn't have anything to do with lactate. Lactic acid strips use a completely separate enzyme/reaction. Hat tip to you and sibling comment about continouous lactate sensors (seem like they are microneedle/patch based?). Quick review shows minimal clinical evidence, but maybe that's sufficient for the consumer wearable market.
- ijustlovemath 1mo agoI've had the fortune to work with several CGM OEMs behind the scenes as part of our work developing an artificial pancreas, they all have a secret lactate signal!
- mikestew 1mo agoThere doesn't seem to be a continuous lactate sensor on the market. They exist, a simple search will turn up a variety (how well they work is a different question). But see my sibling comment, they're banned from cycling competition.
- eoamk 1mo agoTo follow-up, "commercially available" products from a simple search appear to all be vaporware. I did see that cyclists have been estimating lactate thresholds through breathing rate/expiration volume measurements