I just wanted to give a little update on MotionBased, which is looking cooler and cooler every time I look at it. After my spin class I rode to work at an unusually high HR.

I was looking at this thread on Beginner Triathlete about determining your lactate threshold (LT) and by extension your maximum HR. Basically what it says is to warm up, do a 20 minute time trial, and take the average HR. You should feel like you've given it your all by the end. That is supposed to be your LT.

Today in the spin class I warmed up for 20 minutes, then went balls out for the next 20 and took the average. I know it's not the ideal condition for a test like that, with all the transitions between high intensity and low intensity, but I just wanted a rough idea since I had already done a max HR test two years ago. I wanted to know how accurate it is.

My average was 153 bpm. That was pretty damn close to the 155 that I calculated from my max HR. I'm sure if I had treated the 20 minutes as a proper time trial it would have been bumped up a couple bpm. So it looks like everything has been working properly. I'd still like to get a professional test anyway. Still curious about the accuracy of these home-based solutions.

The ride to work was pretty good. Nothing really to report on, they're pretty standard. But I have a MotionBased log now. I'm going to use my other blog to update on all my rides like this, but I just want to show it.