VO2 Max Optimization: The 4×4 Protocol for Peak Performance
Improving your aerobic capacity is the single most effective lever for longevity and peak performance. The 4×4 Protocol (often called the Norwegian Protocol) has emerged as the gold standard for raising your VO2 Max—the maximum volume of oxygen your body can utilize during intense exertion.“VO₂ max is basically how efficiently your body uses oxygen when … Read more