Originally Posted by Omaha
Thanks. That's not all that different from what I have been doing. I run 2 minutes/walk 2 minutes. Repeat 8-12 times.
It's a lot different in practice even though it sounds similar. A two minute "sprint" is very different than a 30 second sprint. I don't see how it could possibly work on a treadmill because you can't control your speed. If you are truly giving everything you've got, you are running much slower during the last ten seconds than the first ten.
Your body simply can't maintain top speed for 30 seconds. Two minutes would quite possibly kill you.