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PJFT & KPH =?

Posted: Mon 17 Sep, 2007 4:41 pm
by paddlequack
Sorry if this has been done to death but i need to know as my medical is this wednesday and my PJFT will follow soon after.
What is the minimum KPH on a treadmill to pass?

Posted: Mon 17 Sep, 2007 5:02 pm
by marcus2007
I think its 15.2 mate. Please bear in mind that it takes about 15 seconds to get the treadmill upto that speed. What i did was have it on 15 for 5 minutes, 15.5 for 3 minutes, and 16 for as long as i could.
Running isnt my strength if you noticed :lol:
But it passed me, just run flat out for as long as you can, and repeat. Its only 8+ minutes of pain, so you'll be fine :D

Make sure you get plenty of interval and fartlek training in for the PJFT, i felt it helped drastically!

Good luck mate

Edit: Remember, this is a best effort test! You dont want to be just scraping it, run like man possessed till its done!

Posted: Mon 17 Sep, 2007 5:48 pm
by paddlequack
Cheers mate, i'm running at 13.2 as my fastest kph for running 10 mins straight so i got alot of fartlekking to go till i can get to 15 :)

Posted: Mon 17 Sep, 2007 5:49 pm
by MadAd
My advise is put it up to 15.5 for 3 mins then 16 for the rest. Just bomb it.

Posted: Mon 17 Sep, 2007 6:06 pm
by jarhead
^^, im going to keep it on 15.2 for first lot then 15.4 for second stage then press upto 16.

or just do 15.6 for 75% of run then can allways go slower if you proper struggle at end.

i hate tredmills lol

Posted: Mon 17 Sep, 2007 6:40 pm
by marcus2007
paddlequack wrote:Cheers mate, i'm running at 13.2 as my fastest kph for running 10 mins straight so i got alot of fartlekking to go till i can get to 15 :)
Well how long have you got till your PJFT buddy?

Dont just rely on fartlek..use different techniques. One 6 miler a week would really make these little runs a bit easier, aswell as a small 1 miler to get a bit of speed going!

If you want me to write you up a little running program give me a P.M! :wink:

Posted: Mon 17 Sep, 2007 7:06 pm
by Illustrious
I know this can't really be classed as help as such but one thing I always do when running at higher speeds, is lengthen my stride. Lengthening your stride allows for a greater running speed, I can attest to it by smugly saying I ran at 23km/h albeit only for 40 seconds before succumbing (sp?) to that bastard, Lactic Acid.

Posted: Mon 17 Sep, 2007 7:21 pm
by paddlequack
marcus2007 wrote:
paddlequack wrote:Cheers mate, i'm running at 13.2 as my fastest kph for running 10 mins straight so i got alot of fartlekking to go till i can get to 15 :)
Well how long have you got till your PJFT buddy?

Dont just rely on fartlek..use different techniques. One 6 miler a week would really make these little runs a bit easier, aswell as a small 1 miler to get a bit of speed going!

If you want me to write you up a little running program give me a P.M! :wink:

I haven't booked my PJFT yet, next is my medical and after that is PJFT so yeah i have around a month to get up to scratch!!!!!!!!

Posted: Mon 17 Sep, 2007 7:34 pm
by MadAd
I always do when running at higher speeds, is lengthen my stride. Lengthening your stride allows for a greater running speed
I always do this on a short fast run. I look like a mad man trying to measure my strides with the pavement. But yeh try your hardest to get long strides out on the treadmill, cos the less time your feet spend on the belt the quicker your times gonna be.

Posted: Mon 17 Sep, 2007 7:43 pm
by marcus2007
p.m sent mate 8)

Posted: Mon 17 Sep, 2007 9:50 pm
by fubar84
Fellas no one will care about your PJFT as long as you pass it in under 10 mins. Pass it in 9:59, pass it in 6 mins, it's doesn't mean squat after the AFCO has submitted you as an applicant for PRMC.

Btw, if you run witha short stride length your time will be exactly the same as with a long stride length when the speed you run at is dictated by the treadmill.

Posted: Mon 17 Sep, 2007 10:29 pm
by MadAd
Btw, if you run witha short stride length your time will be exactly the same as with a long stride length when the speed you run at is dictated by the treadmill
Howd you work this out? A treadmill belt runs at a certain revolutions per minute and the added weight on you running on this slows it down, so no it wont be exactly the same time as if you shortened your strides.

Posted: Mon 17 Sep, 2007 11:43 pm
by marcus2007
whenever i run on the road i always find that i shorten my strides when i want to go faster, however this may be different for treadmill. but i can understand however long your feet are up in the air the treadmill is still running.

Posted: Mon 17 Sep, 2007 11:51 pm
by degrees of passion
MadAd wrote:
Btw, if you run witha short stride length your time will be exactly the same as with a long stride length when the speed you run at is dictated by the treadmill
Howd you work this out? A treadmill belt runs at a certain revolutions per minute and the added weight on you running on this slows it down, so no it wont be exactly the same time as if you shortened your strides.
i dont think the effect of your weight slows the belt down to any great degree to make much of a difference,and its debateable it would slow it down at all...

im no expert but i would have guessed that the mechanism of the treadmill wouldnt make this possible anyway..

Im guessing that yes the belt runs on an rpm basis BUT the calculated rpm goes off the turns of the rotors that actually pull the belt,not the belt itself,and that the belt isnt attatched to the rotors per se,only they grip it to pull it along,much like a set of turntable decks and a slipmatt,ie/your fingers on the vinyl are like your feet on the belt,and any slowing down of the belt wouldnt make a difference to the reading on the display-that is a complete guess mind so correct me if im wrong,but anyway all this isn't important since i reckon the treadmill has enough torque to make the weight of an average person stepping on it make no difference at all regardless(wow im so very bored :-? )

I think the more important point with treadmills is that they do alot of the work for you,ie/you dont have to propel yourself foreward as much as you do on the road(i've certainly found that although treadmills do work your cv system,they do less for your leg muscles than normal roadwork),its more a case of going forward and upward because the ground in effect is moving for you,so....the longer your stride on a treadmill the less strides you have to take to cover the same distance.

Posted: Tue 18 Sep, 2007 11:46 am
by fubar84
MadAd wrote:
Btw, if you run witha short stride length your time will be exactly the same as with a long stride length when the speed you run at is dictated by the treadmill
Howd you work this out? A treadmill belt runs at a certain revolutions per minute and the added weight on you running on this slows it down, so no it wont be exactly the same time as if you shortened your strides.
As degrees of passion mentioned, if a treadmill didn't have enough torque to cope with a person running on it, the speed indicator on the treadmill would be false, and the treadmill would be useless. If you set the speed at 15.2 kmh and run for 2.4k, your time will be exactly the same if you run with short gait, longer gait or just stand next to the bloody thing and watch it spin.