Thanks. Will re-do the test on a treadmill once the PF has improved. Should I expect a big difference? I had pegged my LT at 157 so the figures seem a bit strange. My max HR is about 1172.
Thanks for the quick reply. That’s really helpful. Really enjoyed the book which I found very comprehensive and a good balance of the technical info and accessibility. I’ve just completed a heart rate drift test to gauge my AeT (whilst listening to the Stoke podcast). This was conducted on an elliptical with a 10 minute warm up and then 2 x laps of 30 minutes each. I was nasal breathing throughout the test and kept the rpm and resistance constant. I used a HR strap. Whilst I was inhaling quite deeply at time sthrough the nose I didn’t feel like I needed to open my mouth to gasp in excess air. I was surprised to find that for the first 30 minutes my average HR was 150bpm and the second 30 minutes was 149bpm. Using the calculation I reckon this means a 0.67% drift which means my AeT is much higher than expected as I usually stick to the MAF lmit of 130bpm. Does this sound correct and does it cast any further light on my approach? I’ve attached the graph from the workout (I don’t use TP so the data is from Garmin).
