Q about sprints

[chrise]

Hi everybody.
I`m planning to put sprints back into my routine, because i`m not pleased with my progress.
My goal is fat loss/general fitness.
So my question is:
Are longer sprints, like 200 - 400 m generally better for fat loss than short distances?
If i sprint 200m uphill, jog back and repeat until i cant do no more, lets say 5-7 times, is it more effective than sprinting 50 - 100m uphill jog back and repeat until i can do no more, like 10 - 15 times?
When comparing hiit to lsd it is often talked about the body`s "hormonal response"?
Is it the same for both ways (long sprints/short sprints) if you really go until you cant anymore or has one an advantage above the other?

Thank you!

 

[Jake Martin]

http://www.t-nation.com/readArticle.do?id=459414

This is probably the best article on sprinting for performance and fat loss I've read. Includes sample plans as well. Should be helpful.

 

[mmuhr2]

alternate both, keep your body guessing

 

[SB5]

I have a dilemma here. I have a couple hills of 20-25 degree and 35 degree near me. I love running them, but can't decide whether to do 6 all out sprints twwice a week to completely burn out, or 3-4 reps 3-4 days a week to get more sessions in.

Some will say hit legs in the gym one of those days, but I have a hand injury to I'm not deadlifting or squatting for a couple weeks. I do Staley's EDT for upper body alternating chins and dips, if anyone cares for the rest of the workout. Thanks for any input

EDIT: forgot it was my first post under this name, greetings everyone.

 

[chrise]

Very helpful, guys!
Thank you!