John Evans | Expert Vertical Jump Coach on Instagram: "If you want to jump higher you need to develop your ability to get on and off the ground quick. This is largely dictated by the period between the down and up phase called the amortization period. To improve this, work on your isometric strength."

John Evans | Expert Vertical Jump Coach on Instagram: "Heavy slow strength training is one of the BEST ways to fix tendon pain FAST. It stretches the musclotendinous junction slowly over a long time period, helping the tendon repair in the long run. If you want a free 69 page guide comment the word tendon"