Adarq.org
Sport Specific Training Discussion => Mixed Martial Arts => Topic started by: mattyg35 on March 17, 2011, 06:04:32 pm
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Looks like a pretty handy device.
http://o2trainer.com/ (http://o2trainer.com/)
(http://o2trainer.com/wp-content/uploads/2011/02/02trainer1.jpg)
http://www.youtube.com/watch?v=rKUyRGy2UcI
http://www.youtube.com/watch?v=7gUHMuPyTgY
About the first third or so is where he talks about it in this video.