Keppler -……. 46'8
Sutej - ……….46'6
Stripling -…..47'
Lacy - ……..…49'8
POLE VAULT
THE APPROACH RUN……..……………THE KEY TO SUCCESS
SIX STRIDE MARK and CORRESPONDING GRIP
By: David F. Johnston e-mail
davidfjohnston@yahoo.com phone 352-642-2894
BAR................................HAND/GRIP....TAKE-OFF SIX..CHECK STEP-LENGTHS
HEIGHT/METRIC.................GRIP/METER.......MARK...........MARK/METRIC.........MPS.........FROM-CHECK
...........+15cm....................+.09cm..............................+.31cm..........................................+.05
14-0........4.25....................13-5/4.10.......10-8/3.25.......45-0/13.75.............7.3....................5-9/1.75
14-6........4.40....................13-9/4.19.......11-0/3.35.......46-0/14.06.............7.5
15-0........4.55....................14-0/4.28.......11-4.3.45.......47-0/14.37.............7.7....................5-11/1.80
15-6........4.70....................14-4/4.37.......11-8/3.56.......48-0/14.68.............7.9....................6-1/1.85
16-0........4.85....................14-7/4.46.......12-0/3.66.......49-0/14.99.............8.1
16-6........5.00....................14-1/14.55......12-4/3.76.......50-0/15.30.............8.3....................6-3/1.90
thanks Brian,
a point i would like to make is this... if the athlete is to far out from these "ratio's" and stretches the steps it creates major problems.. even when the matching speed is there...
when a vaulter stretches it not only slows them down it puts them in the
incorrect "Posture" to plant and takeoff correctly... stretching the last steps sends the body weight down at takeoff instead of up.. which causes a pole problem because you will "over bend" with less or sometimes even more pole speed, and think you need a bigger pole..
plus when you stretch into the takeoff the "physic" changes so much... the trajectory changes.. and 90% of the time you will come off, if you complete the jump.. "flat or flag" at the top.. only the strongest, usually men, per body mass can stretch and go vertical... the hips and posture have to be correct to plant and takeoff correctly.. the only way to do that is to do what Petrov says.. increase the frequency over the last six with the same stride length...
that's the only reason a "6 step check" is important at all... it's a reference.. if you are too far out based on your speed, you will have to "speed up" or stretch to be "on", normally stretching under... if you are a little close on your 6 step you can usually "quicken" (if you have trained with this in mind) and save the run and jump.. no one can train for being to far out or a stretch unless you were fast like Bubka and were on a big pole with a high grip when he needed to run faster to get to the correct "free takeoff" point... frequency creates speed and posture after the initial accesleration.......
thanks again for the post and data..
dj
hope this helps.. all
dj