Device to restrict breathing while training?

It is about the lamest thing you can do. Yes, it would work. Altitude masks essentially function this way. People sleep in those to have less oxygen when sleeping and increase their RBC.

Expand a lung wrote:

I think I posted this last night but couldn't find it so I'll try again. I found a device that I got a few years back and is used to restrict breathing and you use it by taking deep breaths in and out and the goal is to make your lungs stronger and more powerful. And I was wondering if there really is a benifit to using while just sitting at home when I'm not running or use it while I'm doing burpees. Obviously dont use it while running but I didnt know if you could benefit from it or if it was just a waste of 20 dollars. I'm not gonna replace it with running because that would be absurd but didnt know if using it on top of my mileage would benefit any

that's the link

Expand a lung wrote:

Lol.

The flaw to this stuff is that weak lungs and more oxygen to your blood stream isn't the issue.

Firstly because all that heavy breathing you do is to expel carbon-dioxide, not get in more oxygen.

Secondly for any distance runner they're rarely running at max heart-rate. If the muscles really needed more oxygen heart-rate could just increase to supply it.

And anyway if you really want to work your lungs out, go run hills at max pace. I use to score off the charts for FVC and lung capacity of 6.3litres but couldn't break 20-mins for 5K.

Whoa , you can replace 90-120 minutes of sprints just by breathing in it for 7 minutes !!! Makes total sense .

I'm pretty sure I saw a study that showed altitude masks and that type of sh*t were adversive and/or ineffective for training purposes?

Don't forget about wearing a gas mask. A lot of pros wear these. Checkout Instagram.