sof pt

The Capacity–Fatigue Balance Model

Military Fitness
January 22, 2026•1 min read

The Capacity–Fatigue Balance Model

Framework Overview
This model describes how performance outcomes emerge from the interaction between accumulated capacity and current fatigue.

Model Components

  • Capacity: Long-term adaptations

  • Fatigue: Short-term suppression of performance

Interpretation Logic
High fatigue does not negate capacity, but it can temporarily obscure it. Low fatigue does not create capacity.

Application
Training decisions should account for both variables rather than reacting to performance alone.

Key Takeaway
Capacity determines potential; fatigue determines expression.

What Is Tactical Conditioning? | What Is Training Load? | What Is Tactical Readiness?

capacity fatigue balance modelcapacity fatigue balancecapacity-fatigue modeltraining capacity vs fatigueperformance readiness modeladaptive training balancefatigue impact on performancecapacity and recovery balancetactical training modeloperational fitness balanceworkload and fatigue interactionadaptive capacity frameworktraining stress optimizationreadiness and fatigue model
Combat Fitness exists to produce capable humans. Tactical fitness for military, law enforcement, and people who refuse to be weak. We focus on strength, work capacity, endurance, and resilience that transfer outside the gym. No trends. No feel-good bullshit. Just hard training for people who expect more from themselves.

Combat Fitness

Combat Fitness exists to produce capable humans. Tactical fitness for military, law enforcement, and people who refuse to be weak. We focus on strength, work capacity, endurance, and resilience that transfer outside the gym. No trends. No feel-good bullshit. Just hard training for people who expect more from themselves.

LinkedIn logo icon
Instagram logo icon
Youtube logo icon
Back to Blog