Lesson 17 – Shift Load & Fatigue Control The Hidden Physics of Winning Hockey Most fans watch the puck. Coaches watch oxygen debt. Fatigue management is the invisible layer of elite hockey control. 1. Average Shift Length (ASL) 2. High-Intensity Burst Count (HIBC) After the 4th full-speed burst, muscle efficiency drops by 22-28%. 3. Recovery … Continue reading IHM Academy · Performance Metrics Masterclass – Lesson 17