011 - Intermittent High-Quality CPR: A Tactical Upgrade for EMTs & First Responders
CPR Isn’t Just About Technique—Strength & Endurance Matter
Upper limb & core strength directly impact compression depth, which is critical for CPR effectiveness.
Stronger responders delivered more consistent chest compressions, reinforcing the need for physical preparedness.
Tactical professionals should be training for CPR strength the same way they train for load-bearing tasks.
Short Rest Intervals Improve CPR Quality & Reduce Fatigue
CPR-20s (20-second rest intervals) resulted in the lowest fatigue scores (RPE = 12.36 ± 2.23) without sacrificing compression effectiveness.
Compression quality remained high, and chest compression fraction (CCF) peaked at 97.08% with intermittent rest.
Going beyond 20-second rest intervals negatively impacted effectiveness, proving that controlled, brief recovery is key.
How to Optimize CPR Performance & Responder Endurance
1. Train Strength & Endurance for CPR-Ready Performance
Develop upper body and core strength through resistance training for improved compression depth.
Incorporate HIIT & anaerobic conditioning to simulate CPR intensity and sustain physical output.
Train for prolonged exertion—because in the field, CPR fatigue is a reality.
2. Use Intermittent CPR in Long-Duration Scenarios
Implement structured rest durations (≤20 sec) to sustain high-quality compressions.
Train for real-world. conditions—adapt to high-fatigue environments like transport settings.
3. Monitor Fatigue & Adjust CPR Effort in Real-Time
Use the Borg RPE scale in training & live events to measure fatigue and optimize performance.
Incorporate CPR feedback devices and manikins to ensure compression depth and rate stay within optimal ranges.
Thick Necks, Strong Hands, No Weak Links
A responder who gasses out in minutes is a liability. A team that doesn't account for fatigue is gambling with survival rates.
Train like it’s real—because it will be.
Stay Thick.
Chang CH, Hsu YJ, Li F, et al. The feasibility of emergency medical technicians performing intermittent high-quality cardiopulmonary resuscitation. Int J Med Sci. 2021;18(12):2615-2623. Published 2021 Apr 29. doi:10.7150/ijms.59757