How Coach Korfist Uses the kBox to Improve Vertical Force
Some creativity goes a long way in creating specialised exercises on the kBox. Fredrik Correa reads a new article by sprint guru Chris Korfist, and sees implications for any…
“The Best Piece Of Equipment That I Have Come Across”
This quote about the Exxentric kBox comes from US based track coach Chris Korfist, who has produced 59 all-state track athletes in the last 22 years. We read his…