Yea, your going in the right direction. HIIT is for increased resting heart rate, and to preserve lbm. you could do what your doing, and once thats easy increase it to 60-75 meters sprint, then 50 slow.. and just go from there.

My new dorm room is right next to the campus track. This is great for me because the track is padded, and my knees are shot. This morning I just experimented with HIT running by sprinting 50 meters, then slow jogging 50 meters, rinse and repeat 9 more times for a total of:
500 meters sprinted
500 meters slow jogged
This is just a basic layout that I just made up, but I would rather have a program to stick to. Am I even doing this right? I would like to hear some ideas for HIT training on a 100 meter track.
“I used to do drugs. I still do drugs. But I used to, too.”
Yea, your going in the right direction. HIIT is for increased resting heart rate, and to preserve lbm. you could do what your doing, and once thats easy increase it to 60-75 meters sprint, then 50 slow.. and just go from there.
P-side Inc.
"the post-workout high is more profound than any drug-induced rush imaginable." -Dante B.
Why is that? Not enough cushioning?
I didn't realize that. Thanks for the info.
I know that when I run on pavement my legs feel it more than when I run on grass. Lately the only running that I do is on grass.
Even with a padded track, I probably wouldn't be doing high impact stuff like that if your knees give you lots of trouble. I like HIIT on an elliptical for multiple reasons, even though I don't like ellipticals that much in general.
However, you have the right idea. There are multiple ways to go about it. You can time you work and active rest periods, you can sprint until you reach a certain heart rate and then rest until it recovers to a certain level, you can sprint and jog certain distances, etc.
The only time it's bad to feel the burn is when you're peeing...
CowPimp Chews Cud - My Journal
1RM Videos

They don't give me lots of trouble, but they do hurt a lot. It doesn't really hurt much, but rather lets me know that something isn't quite right. Usually when I take a break from lifting during finals, they stop hurting, then start back when I lift hard for an extended period of time.
I hear what you are saying, but running has always been the best cardio I have ever done. I hate cardio in the gym, but running isn't so bad.
“I used to do drugs. I still do drugs. But I used to, too.”
Divide your HIIT between non impact and impact exercise if you want to preserve your knees. People around here apparently don't understand physics but complications will develop frmo continual running.
"in the howling bleeding nights, the dogs plunge into the Volga and swim desperately to gain the other bank. The nights of Stalingrad are a terror for them. Animals flee this hell; the hardest stones cannot bear it for long; only men endure."
DISCLAIMER: