Rockport Walk Test - estimate your VO2 max

Part 1. Backyard version using wrist based heart rate.
Rockport Walk Test is an easy way of estimating your VO2 max. But is it accurate?

[@mikestevenson1334]

That was an interesting result! I'm looking forward to the next two tests to see the average =D I'm sure your VO2 max is higher than 29, as you do a LOT of running!

[@johnstillruns7642]

Thanks Mike. Less running than the 'old' days but generally pretty active.