Applying the 80/20 Training Principle to HYROX: Evidence-Based Approaches to Program Design. A critical narrative review and testable framework for performance and athlete health

Purpose

HYROX combines running and functional exercise stations, complicating the interpretation of endurance intensity ratios. This review evaluates the 80/20 principle, defines its denominator within mixed training and develops an evidence-to-decision framework and testable hypothesis.

Methods