Iron Man Triathlete @rafisilerio measures his Lactic Acid build up per heart rate zone he enters. Learn how to manage lactic acid build up through this test and perform optimally at training and in competition🏻🚴🏽🚴🏼♀️ The test is also available for runners 🏼@maximusathletesshopcafe 
– from Instagram
Spartan IG Updates
