EVZ Definitions™
The EVZ Definitions Framework™ is a structured system that defines how athletic power behaves across repeated efforts rather than focusing solely on peak output. It introduces key concepts such as retention, re-expression, output behavior, and drop-off to describe how performance is sustained, declines, or stabilizes under fatigue. By standardizing terms like retainable output, retention profile, and output decay rate, the framework enables coaches to diagnose performance breakdowns more accurately and apply retention-driven programming strategies. This approach improves performance consistency, durability, and transfer to sport, forming the foundation for applied models such as the 3 Sets Diagnostic™, Drop-Off Threshold Rule™, and Output Retention Programming (ORP™).