I noticed that Joe mentioned his Powerbreathe workouts so I wanted to show you a picture of that too so everyone knows what he is talking about!
This is what his Powerbreathe looks like. Inside there is a resistance so when you breathe through it, it is more difficult than just breathing normally and it helps strengthen the breathing muscles which then helps improve performance. I don’t think the workouts are too long but they are very difficult! I haven’t exercised with this thing but I did try it out when Joe first got it and even just standing in the kitchen it was hard to breathe through! Here is a link to the Powerbreathe website if anyone wants to know more about them!