Author Topic: 150m dash Usain BOLT!!  (Read 1164 times)

0 Members and 1 Guest are viewing this topic.

TKXII

  • Hero Member
  • *****
  • Posts: 1255
  • Respect: -12
    • View Profile
    • Email
150m dash Usain BOLT!!
« on: March 31, 2013, 09:55:09 pm »
+1
world record video 14.35 (2009)
<a href="http://www.youtube.com/watch?v=h0d69bXakUo" target="_blank">http://www.youtube.com/watch?v=h0d69bXakUo</a>

14.41 (2013)
<a href="http://www.youtube.com/watch?v=w3f_StDCFfM" target="_blank">http://www.youtube.com/watch?v=w3f_StDCFfM</a>

Tyson Gay 14.51 (2011)
<a href="http://www.youtube.com/watch?v=twUSYj-o8Os" target="_blank">http://www.youtube.com/watch?v=twUSYj-o8Os</a>
"Performance during stretch-shortening cycle exercise is influenced by the visco-elastic properties of the muscle-tendon units. During stretching of an activated muscle, mechanical energy is absorbed in the tendon structures (tendon and aponeurosis) and this energy can subsequently be re-utilized if shortening of the muscle immediately follows the stretching. According to Biscotti (2000), 72% of the elastic energy restitution action comes from tendons, 28% - from contractile elements of muscles.

http://www.verkhoshansky.com/Portals/0/Presentations/Shock%20Method%20Plyometrics.pdf