SPIKE SHOES

THE QUESTION

Do shoes with spikes help me run faster than shoes without spikes?

THE RESEARCH
Well we know that when I am running I don't want shoes that stick like glue and I don't want shoes that have no friction at all becuase then I would fall. Without spikes, more of my shoe is actually touching the track therefore having more friction. Using shoes with spikes, the spikes, even though they decrease the overall friction slightly, dig deeper giving me more traction. Wearing shoes with spikes, I will accelerate faster and every step I take when my feet hit the ground my momentum pushes the spike into the ground creating static friction and giving me more grip. If I wasn't wearing spikes then as I speed up and kick my feet into the ground, without the spikes I could possibly slip if the track is fairly flat. Also when I wear shoes with spikes I will reach my top speed slightly quicker than the person wearing flat shoes.
Flat shoes on the other hand don't grip the ground as much as spikes do so there is a greater chance that you would slip and fall. Also, when you are accelerating you have a greater chance of slipping than when you are at a constant speed.I experienced the effect that spikes can have on a race. At a track meet this weekend, one of our runners didn't want to wear spikes for his starting sprint off the blocks and because he was wearing flat shoes he fell on his face as soon as he accelerated off the block.

nike_zoom_powercat_two_small[1].jpg4401-004-B2876318[1].jpg
The picture above shows classic track shoes. The reason there are spikes on the front of the shoe and not the back is because, firstly, you don't run on your heels but mainly because you sprint on your toes so more spikes on the front of the shoe give you maximum grip. The other picture shows many examples of our vocab words. The runners are knocking into each other creating kinetic friction, the one on the left has a lot of mass, they are accelerating, you can tell that they are moving at a quick speed. If you are sprinting, once you have reached your top speed you will only keep running at that
velocity
. Different types of spikes are more or less suitable for different sports. For instance, if you are running outdoors, like in cross country, you would want long spikes because when you accelerate up a steep hill, if you don't have spikes you might slip if you don't have enough friction but spikes will keep you going up the hill. there is a difference between track spikes and cross country spikes. On track spikes, you accelerate faster and maintain that speed so you want shorter spikes with more spikes on the toes, which will also help you keep your balance. Also, even if you have good spikes, you might have heavy shoes and gravity would really weigh down on you and if you are not used to running with spikes on you might trip.


BIBLIOGRAPHY
www.sprintic.com/ spikesnike/zoom_powercat/

http://www.britannica.com/EBchecked/topic-art/563736/7550/Start-of-a-womens-100-metre-sprint