Articles
Force in Acceleration: The Debate Continues
The debate continues regarding the importance of vertical and horizontal forces during sprinting.
CrossFit and the Freelap Mantra
Intensity is the trademark of Crossfit, but it is the intensity combined with “rabid empiricism and obsessiveness about the measurement of results.” CrossFit focuses on real world assessments of performance under intensity that can be “clocked, counted, or put on a scale.”
High Speed Running and the Central Governor Theory
If there is a central governor relative to high speed running—and again this is just a theory---are the fastest athletes in the world those who are able to over-ride that governor? And in so doing, might they be choosing to put themselves on the edge of a catastrophic injury?
ASR Training Distance Over Time
By Lisle Track Coach Ken Jakalski This video shows athletes starting at a certain point on the track based on their individual ASR speed regression calculation. Instead of running a set...
Ken Jakalski ITCCCA 2014 Presentation Notes
Ken Jakalski is head track and field coach at Lisle High School As a sprint coach, my concerns should be answering two fundamental questions. First, I’d like to know what...
My Evolution to Freelap
By Ken Jakalski Since the mid-seventies, when I first began trying to extend the predictive ability of Russian coach Valentin Petrovksy’s fly sixty projections for Olympic sprinter Valery Borzov...
