A CO2 tolerance test can be a starting point for individualized training protocols for elite athletes.

“yeah okay and then from there i know it's gonna be individual but can you give me a sense of like what you might suggest to them are you gonna do apnea tables like for free divers are you gonna have them try and do workouts with just nasal breathing or are you going to have them try and keep you know gear one and gear two breathing or maybe even gear three when they're yeah like what are you going from a basic level like to uh to a pretty to a high level crossfit athlete yeah anybody who's coming to me um to work individually there's always going to be the individual side of stuff and me understanding their goals and where to go but basically here i mean look i've worked with james newberry tia claire toomey um rich froning uh annie thoresda i've worked with a number of the top crossfit athletes that have you know uh in the past”