[Rachel Roberts]

I have another question about the HR drift test. If I need to repost on a new thread, I’ll do that. I thought it might be easier to find for other folks if the questions were in one place.

I did the treadmill test last week and started with a bpm of 129 and got a heart rate drift of +2.3%. Today I retested starting at 134 and got a negative result.

136 was my average for the first half and 135 was my average for the second. I did have to switch treadmills 10 minutes in because the treadmills at my gym shut off after 60 minutes. It took awhile for my heart rate to stabilize after I switched over so I started the test at 18 minutes instead of 15, and then had to end it at 70 minutes because the second treadmill started shutting off (so about 52 minutes total of testing). I had the treadmill at 15% grade and 2.9 mph for the first test and 15% and 3 mph for the second test. The first test seemed like a sustainable level of effort (as in, I could have kept going) and the second seemed hard (as in, I occasionally was breathing hard and I was glad when it was over). Any suggestions from where to go from here? Try to go even higher? Thanks!