hik4ru123

Thank you! You have got me onto a lead for further research.

I was just wondering if, say, I went for a 5 mile run. (say I could even do that with the mask, lol) and my muscles being engaged (quad, etc) are getting adapted to a lesser amount of oxygen during the run, then after the run, would they be getting "over-oxygenated"? Sorry if this doesn't make clear sense. and I'm training…

well, it does work with building your cardio. My friend has improved his mile time greatly from it. Thank you for not answering my question.

what is bf?

Thanks for so many quick posts guys. and yes, it was just general info on both, not necessarily at the same time. I think I got the general idea, I just wanted to see if there are any guidelines that I was missing that I had to implement into my routine. I want to bulk. So I consume more calories then? that's it? and my…