The 12-minute run or walk test is a valid method for estimating VO2 max outside of a lab setting.

“if you don't want to go into a lab to get your V2 Max measured or you don't have access to it for whatever reason um one of the the best evidence-based ways of measuring BO2 Max um at home so to speak not necessarily home is what's called a 12 minute run test or walk test depending on your Fitness level”

“um if you don't want to go into a lab to get your V2 Max measured or you don't have access to it for whatever reason um one of the the best evidence-based ways of measuring BO2 Max um at home so to speak not necessarily home is what's called a 12 minute run test or walk test depending on your Fitness level um essentially you need uh some sort of you know wearable device that can track your your distance so Apple watch your Fitbit whatever and you need to you need to have like a flat surface that you can run on so like a track field and you want to run for 12 minutes or walk depending on your Fitness level the maximum am intensity that you can maintain for that 12 minutes and you that basically your distance is covered and then you look up this equation and it converts you know your V2 Max based on that distance and the reason you don't want Hills and stuff is because that'll make you run um you know the distance will be less so you want to make sure you're giving yourself a a flat surface so that you actually are more accurate in terming what your distance is during that 12-minute run test”

“there's there's a good evidence-based way of estimating BO2 Max and that's really the 12-minute run test or walk test depending on your Fitness level”