Sprinting Technique question

I have a question regarding my form towards the end of the 100m and 200m sprints at around 85%+. It seems that as I’m coming down within the last about 25m-30m(100) and the last 30m-35m(200), my legs tend to feel like their moving fine, but when I look at them they aren’t coming up as high as they usually should. To me that isn’t the big deal the big deal is in those meters indicated above. I somehow seem to not get that much push(acceleration/holding speed) due to what I think is me running possibly too high on the balls of my feet and not producing as much force as I think I should with the effort I’m putting out. I know its hard to describe but the cloest description I can say is I’m trying to make suer I stay on the balls of my feet, but I’m not coering the amount of ground that I think I should. So if anyone has any ideas, please help and thanks.

I’m not quite sure I understand the question, but, when you say, “when I look at them” do you mean while you’re running?!?

Secondly at the end of the race you’re not going to accelerate, you’re fighting your decelerating. If you’re slowing down quite a bit, the problem may be your overall fitness level.

Rather than trying to exert greater amounts of force on the ground you should be looking to maintain your speed (like t-bone said). I good analogy I read was that it is like spinning the wheel of a bike with your hand. At first you need to get it moving, so you use more force. When it is up and spinning fast you will only slow the wheel down if you try to use more force as you would increase your contact time, in effect slowing the wheel down like you are putting on the breaks. The trick is to make the transition from power to quickness smoothly…

Hold your body position and focus on your arms.

I just got done doing some work today, and I have a litlte bit more information to add. In regards to T-Bone yes when I’m runnign I can glance down and look at my feet and knee. Today when I was running I said I was going to try to lean forward to help the angles i’m working with at the lower part of my body when I’m coming towards the finish line. After practicing this slightly a better lean forward technique I think my problem could have been the fact that as I’m trying to keep from decelerating I tend to let my body lean to far back and that may in turn mess up my hip swivel and all. Therefore a fix could be me focusing on making sure my body doesn’t lean that small extra notch back, as well as concentrating on the theory that littlegreg proposed. Any more clarifications anyone want to add? BTW thanks for the help I really want to get this issue solved.

i guess your cuz of dropping your speed iscuz u arent loose , i have a video of a 100 meters race which there was jon drummond boldon,and mo drummond went out a very good start but at the 75 meters he is keeping pushing himself he is exerting more force so guess what mo and boldon beaten him ,thats they were loosen up.what i mean is when u run tight in the 100 meters this is only in the first 30 meters where you need to reach you speed

the last 30m of the 100 is were things can go seriously wrong.think of it this way and trust me this is the easiest way to look at it.you accelerate you maintain and you relax.acceleration is straight forward,you simply are increassing speed until to hit top speed.maintaining is holding onto the speed but holding on is the wrong word as its often used imporperly.relaxation is the key from gun to tape.its one of the most important things/aspects in any sport! after you reach your top speed don’t try anything,just move.try things and it will have adverse reactions

interesting.