duhenson Member

Thanks for the reply.

Thanks.

Thanks for the reply. 60 minutes on a treadmill isn't so bad when you break it down into 5 minute segments. I am trying to come up with a HIIT/ steady-state hybrid routine and I really love what I developed with this routine. Just making sure it's safe to spike the heart rate to max throughout an hour. It is a beastly…

I find that running at a 6 incline at 6 mph gets the large leg muscles pumping more than running at 10 mph flat. It also spikes the heart rate much faster also. I was just curious if it was safe to spike the heart rate close to max in intervals for an hour. Thanks for responding.