Free ebook: Optimize Power and Return-to-Play with the Comprehensive CMJ Testing Guide

A practical resource to master CMJ protocols, interpret force-time data, and enhance decision-making in performance and rehab

The Countermovement Jump (CMJ) is the gold standard for assessing lower-body power and neuromuscular performance. Widely used in sports science and clinical practice, it provides essential insights into dynamic strength, fatigue, and adaptation. While several tools can measure jump height, force plates remain the gold standard, offering the most accurate representation of the CMJ force-time curve.

This free ebook, “CMJ Procedures and Testing,” distills the key principles needed to perform and interpret a CMJ with precision. It breaks down the standardized testing protocol, explains each biomechanical phase of the jump, and highlights the performance metrics that matter most, from peak force and power to RFD, impulse, and asymmetry indices. These objective data points are crucial for profiling athletes, monitoring long-term progress, and making confident return-to-play (RTP) decisions.

The guide also clarifies how dual force plates quantify inter-limb asymmetry and why relying solely on a 10–15% threshold is insufficient. Instead, it introduces robust methods such as the Coefficient of Variation (CV) to distinguish true asymmetry from normal measurement variability.

For therapists, performance coaches, and sports scientists, this ebook provides the structure and precision required to elevate CMJ testing to a professional standard.

Download your free copy and transform your CMJ assessments with force-plate accuracy.