I think you offer a rather simplistic model. Yes, the definition of acceleration is a good one, but the biggest problem that most sprinters have initially is to know how to run once acceleration is complete. For this they initially need quality technique work which can use a controlled shorter period of acceleration and then a switch to max v mechanics. No it is not the fastest way down the track, but unless you can master the feel at lower velocities you cannot hope to know what to do once your maximal acceleration is complete.
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I believe in mechanics. Maximum velocity mechanics? The same mechanics that gets you going should sustain you. The difference is the athlete does not try to go any faster once he is at top speed. “He maintains speed by being relaxing and maintaining stroke speed” …Tom Tellez.
This seems totally at odds with all the good points that you have posted before! Maybe I have misunderstood your previous points?
There comes a time in the race where all pushing has stopped and the athlete has lifted. The mechanics are very different. It is fundamental to a good 100m performance.
Can you see the difference in the mechanics between acceleration and once she has lifted fully into max v?
Some people try and run the whole race like the example in the left. Some people try and run the whole race like the example in the right.
Our job as coaches is to help them one day aquire the ability to run as in both examples in the appropriate places with correct transition between the two.
I beg to differ with you here. The forces are more vertical at top speed. All the athlete tries to do is get back off of the ground not by lifting but by driving vertically. If you lift, the hips will drop to far down. It is easier to drive the hips up than to just lift the knee. If you focus on lifting what will gravity do to the body?
I can’t look at 2 clips to judge. What I do know from mechanics is that the postion of the body changes giving different looks. As the body position shifts, you will see different looks but the process is the same. Body position dictates the looks. The coach’s concern is with foot placement. If the body is leaning forward, some of the force is going to be horizotal. As the body straightens up, the forces are more vertical meaning that there is less of a horizontal impulse. Therefore the changes in mometum become less with each smaller impulse until the body experience zero horizontal impulse. At this point, the athlete maintains what he is already doing…(which is going vertical)… more than trying to get any faster. I don’t know where you are from but when people say “lift”, they are talking about knee lift.
This is my last posting and probably visit to the Website. It was fun while it lasted. Got to do other things but a couple of things I would leave you with are ‘to be true to your beliefs and fully examine things before you acept them’. Let science be your guide…if science can disprove it, don’t do it. Go seek knowledge but first, ask God for wisdom so that you might understand.
Bye
What quality does God give out that will allow someone to see more than 5% of the picture? Let’s hope you get it for Christmas!
I don’t normally comment on other people’s training methodologies because I think that there are many ways to get great results, but what I do comment on is when someone clearly does not understand what they are talking about and is giving incorrect training advice whilst trying to disguise it in a veneer of very conveniently presented scientific principles.
First off. A fair bit of arguing has been over definitions. I have always known “Lift” and/or “lift phase” as that period of the race where the top athletes lift their CG up above their opponants. No one here is suggesting that this is the period where the knee is lifted higher. (The knee must never rise up higher than the hip)
The arguement IS however over the top speed section and how far the (as you call it) speed is maintained by purely verticle means. As wind resistance takes 20 to 25% of the athlete’s power to overcome, deceleration will occur at the very first step after he’s passed over the crest of top speed and can no longer impart more horizontal impetus. This, in no way changes the way the run FEELS- which is as you describe.
