10 Most Unorthodox NBA Workouts

lebron james training mask

LeBron James was an early adopter of the high-altitude training mask, incorporating it into his fitness regimen when it first came out in 2013. You know how elite runners train on higher altitudes because it takes more out of you? This is essentially the same thing, but in portable form. Doesn’t matter what you do with it on, everything will have a lot more effect.