Quote:
Originally Posted by AllisonR
I wonder. I'm doing HIIT as well for about 3 months for 20-40 min each time at least 5 days a week, and haven't really seen any significant changes. When did the results start to kick in for you?
This month, I've started doing the 30 Day Shred, and I feel pretty good. I don't know if it's in my mind, but my boots fit better around the calf. And this is when I've started to see quicker results.
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If you're able to do 20-40 minutes of HIIT five days a week, you aren't doing the HIIT I researched.
And if you are, your body needs much more rest than you are giving it. They say HIIT shouldn't be done more than twice a week, three times if you're really in shape. The duration is anywhere from 4 minutes up to 20 minutes depending on how many intervals you're able to do. I go all out, totally I-can't-run-another-second-at-this-speed-without-collapsing-ALL-OUT for 30 seconds and then lower my heart rate to within normal range for about 90 seconds and then go again. The first two intervals aren't bad, but by the 6th I'm cursing my timer.
There's a difference between interval training, which is also awesome by the way, and HIGH INTENSITY interval training.
I hope that helps! They also recommend doing it for 6-8 weeks and then giving it a couple weeks before starting up again.
I really like this site:
http://www.intervaltraining.net/HiitTraining-30.html