QUOTE(jamis @ Mar 5 2010, 11:50 AM)
Hi runners,
I have a question on HIIT and i hope that this a right thread to ask for help.
I did my HIIT last night and i felt that i can hardly cope up with the hearth rate thou, i m trying the beginner's HIIT which is 30sec sprint (173bps) and 90sec brisk (125bps).
-1min warm up
-sprint 30sec - heart beat only reach 150 - 160bps
-brisk 1 min - 140+bps
-try to sprint for 30 sec - it only reach 150 -160bps again and tats the end of 30, the time to hit 175 needs to be more than 30sec ...
So i was wonder how can i hit 173+bhp ? during the intensive 30sec, the time seems to be so insufficient for me to hit 173+bps, and my brisk owas hit ard 145bhp. So how do u calculate ur heart ?
should that be in that 30 sec :--
first 10 - increase hearth beat
following 10 sec - catch up with the beats and reach the max beat
last 10 - cont with the max beat
is tat sounds alright? and i read from some other forum they claim that, shorten the rest time may be easier for me to cope with the hearth beat...
AFAIK, the only measurement for heart rate is BPM (beats per minute). If Ur heart beats at 173 beats per second (bps), it would've burst out of Ur chest already by now.
Did U use any instruments to measure Ur heart rate, i.e. heart rate monitor/wristwatch with heart rate sensor ?
I'm not familiar with HIIT concept of training, although I do regular intervals & fartlek in my training. If U can't reach certain heart rate during the run, causes might be :
1. Ur not running hard enuff;
2. U haven't warmed up enuff;
3. Ur too tired U can't reach certain heart rate.
Take my interval sessions for example:
I run 5 x 800m at 5:35/km pace, that would take me around 4:00 - 4:10 to complete each rep. My heart rate would top around 165-170bpm thruout the 4 mins. Between each rep I recover to about 110-120bpm in about 2mins or half the interval period. My max is 187bpm (age formula). Last Tuesday while doing fartlek, I hit 214 bpm... How ? I dunno ..
So U see, for me, it takes 800m/4mins (avg) to get me to 170bpm. Maybe in 30 secs, U need to really, really sprint to get up to 170bpm. Or maybe do hillsprints. I've hit 170bpm for hillsprints in less than a minute, no prob.
& U mentioned there Ur warm-up is only 1 min. U sure thts enuff ? Maybe U need to warm-up at least 10 mins by slow jogging to get warmed up. & I use Polar RS300sd for all my workouts.