[tengy]

im pretty sure u heard of it.
What kind of activity do you do and how long do you do it to achieve results?
Im thinking bout jogging but im not sure how do i start.
Guidelines anyone?

[Anglian_Viking]

Try doing 15 seconds full out skipping/sprinting/explosive lunges
then have 60seconds rest and
repeat 6-12 times

If it get's too easy and you feel your not getting enough out of it increase your duration by 5 seconds, or decrease recovery time by 5 seconds over time it'll improve your anaerobic threshold.

[Makaveli]

Try doing 15 seconds full out skipping/sprinting/explosive lunges
then have 60seconds rest and
repeat 6-12 times

If it get's too easy and you feel your not getting enough out of it increase your duration by 5 seconds, or decrease recovery time by 5 seconds over time it'll improve your anaerobic threshold.

you're not really supposed to "rest" you're supposed
to go at a slower pace but not stop. Suddenly stopping is not
good for the heart. I don't do HIIT but I know a couple of things about it.

[fantasian]

HIIT basically means short bursts of high level activity followed by a less intensity. so high, low, high, low etc.

the purpose is to basically trick your body so that it doesnt go into a comfortable pattern and ease up.

so with the running you could probably run say at 12km/hr for 5 minutes, slow down to 7km/hr for 2 mins then back to 12km/hr for 5 mins.

whatever really.

[Anglian_Viking]

you're not really supposed to "rest" you're supposed
to go at a slower pace but not stop. Suddenly stopping is not
good for the heart. I don't do HIIT but I know a couple of things about it.

You get what I mean =)

[huongface]

I take a high intensity gym class (boot camp) at 24 hour fitness. within this class, we do 3 minute circuits. We jog, we lift weights, we do cardio in a span of 1 hour. don't completely stop but walk around if you need to rest.

[hunny]

Yea, I do HIIT when I’m in mood too.
My friend (Personal trainer trained), told me to sprint for 30 seconds, rest for 1 minute, and keep repeating. The resting will be twice the time of the time of sprinting. As time pass, you may increase your time accordingly.
But I thought that the resting time is a little too long… so normally I sprint for 2 minutes, rest for 1 min 30 seconds, and repeat. Sometimes I rest a little shorter if I am not panting heavily. I don’t know if HIIT works, but it sure makes me feel good. Really gotta focus because it’s really fast…

[frag2]

Do eliptical
1min High intensity followed by 4 mins med-low and do that ratio for about 25 mins
If you are capable, do only 3mins of med-low

[tengy]

do we get bulky muscles from sprinting ?

[Makaveli]

To gain "bulky muscle" you have to eat and train hard for it. It's easier
said than done. So no you wont. If you're unfit you'll gain an initial bit
of muscle but after that it'll stop.