Breath deeply to improve athletic performance

Breathe deeply 60 times.
Follow the standard Wim Hof breathing pattern for 60 breaths, inhaling deeply and letting the air go.

Take one final breath and hold for at least 15 seconds.
Take your final breath, exhale, and hold for at least 15 seconds. You can hold it for longer if it feels comfortable. Squeeze your entire body and push the breath towards your head.

Let your breath go and start a new round.
Let the breath go and start a new round with another 60 breaths.

Increase intensity with each round and repeat 3-4 times.
With each round, increase the speed and intensity of your breathing. This is what differentiates this from the basic breathing exercise. Repeat for 3-4 rounds.

Wait two minutes before exercising.
After finishing the breathing exercise, wait for two minutes before you start exercising so your body can return to normal.