[Jack Kuenzle]

So AeT is the Aerobic Threshold/First Lactate Threshold. In the zone distribution that Evoke uses, AeT is the top of Zone 2. If the heart rate drift test is perfect, and assuming the gas exchange test was accurate, you should get about 5% drift if you were to do a drift test at 177. Again, heat is a huge factor for heart rate drift so make sure to utilize a cool environment for test.

 

To be honest, I have seen some of those lab tests produce incorrect data for first lactate threshold. Not knowing the lab, I’d use the more conservative value for AeT. Either 177 or whatever value you get from a drift test (assuming lower than 177).