
Exertional Sickling occurs in athletes carrying the sickle cell trait. When the red blood cells change shape or “sickle” it causes a buildup of red blood cells in small blood vessels leading to decreased blood flow. This drop in blood flow leads to a breakdown of muscle tissue and cell death known as fulminant rhabdomyolysis.

Signs and Symptoms of Exertional Sickling:
- Cramping Muscle Weakness > Muscle Pain 
- Fatigue 
- Slumps to Ground 
- Muscles Look and Feel Normal 
- Rapid Breathing 
- Core (Rectal) Temperature <102oF 
What to do in the event of this emergency?
- Check and monitor vitals. 
- Monitor for shock, responsiveness, tachycardia (fast heart rate) that begins to evolve into bradycardia (slow heart rate). 
- If available, give supplemental oxygen at 15 L/min by non-breather mask. 
- Cool athlete, if necessary. 
- Failing immediate improvement, call 911 and attach an AED. Be ready to start CPR, if needed. 
- Transport athlete. 
