I have been postponing running until I get below 250 pounds, I'm currently 260, but since I signed up for The Missile Man duathlon (formerly the Jon Stermer duathlon) on Feruary 1st 2014 I decided I needed to start running now. Yesterday I did a tabata so that I'm building my running ability while also building fast twitch muscles. I did a 5 minute warm up on the treadmil, then set the incline to 4% and the pace at 8 mph. Then I ran 20 seconds on 10 seconds off. I could only keep that up for 6 rounds, stopping at the 9:50 mark. I've also started cycling to and from work again. Until the Missile man duathlon I'll be weightlifting on Mon, Wed, Fri, and Sat's. Cycling on Tue's, and running on Thur's. After today my tabatas will be more strenuous. I'll set the incline to 12% and the pace 30 seconds slower than my latest best 5k. Then 20 seconds on 10 seconds off for four minutes or 8 rounds.
I have to say thank you to Travis from Zia CrossFit for helping me out with this fast twitch building cardio. It's new to me and I'd never have known what to do if it wasn't for your help and guidance.