[Scott Johnston]

Sorry Folks;

I was busy with some other writing projects like this article https://evokeendurance.com/training-fast-twitch-and-slow-twitch-endurance-athletes/.

@ Rachel:  I suspect the root of the problem is that you changed treadmills mid-test.  Treadmills, unless they are of laboratory quality like the Woodway are notorious for being inaccurate and inconsistent.  Here is an article I wrote about this last fall https://evokeendurance.com/treadmill-season/. I suggest doing your warm-up and test on the same treadmill to minimize this problem. Stop then restart the t-mill after your warm-up, so you get an hour of test data. However, if you only can capture 45 min of test data, you will still get a decent idea of the drift.  I hope that helps.

@ kilfatmike: Both these tests sound like they were well done, and you have interpreted the AeT test data well.  I’d use the 139 as the AnT because of the shorter test and the slower HR ramp-up.  Good job.

Thanks to both of you for writing in. I will review testing in-depth on the Book Group monthly zoom meetings, so don’t miss that.

Scott