CECS & PAES: Quick Guide

What is CECS?

Chronic Exertional Compartment Syndrome (CECS) occurs when pressure inside the muscle compartments rises during exercise, reducing blood flow and nerve function. Symptoms often include tightness, cramping, pain, numbness, or weakness after a few minutes of activity. Symptoms typically improve with rest—but return with exertion.

What is PAES?

Popliteal Artery Entrapment Syndrome (PAES) is when the artery behind the knee is compressed due to anatomy or movement, limiting blood flow to the lower leg and foot. People may feel pain, coolness, or numbness with activity; in some cases the foot can “go limp.” Like CECS, symptoms often subside at rest and recur with exertion.

Who Gets These Conditions?

• Veterans & service members can be medically discharged due to persistent symptoms.
• Teen athletes—including many girls—may be sidelined from sports with little guidance for return.
• Endurance & field athletes (marathon runners, lacrosse, soccer, basketball) report exercise-induced pain and weakness.
• Motocross & racing athletes may experience forearm CECS (known as “arm pump”), losing grip strength mid-race.

Do We Know the Cause?

Not definitively. CECS and PAES are complex and often underdiagnosed. Advanced imaging and exertional testing can help, but insurance coverage is inconsistent, and surgery success rates vary by patient and technique.

How Is Courtney Finding Relief?

Our founder, Courtney Conley, is receiving innovative care at The McGinley Clinic in Casper, Wyoming, including targeted Botox and Daxxify treatments. After years of pain, she’s finally experiencing more moments of movement without pain—and renewed hope.

How Does My Purchase Help?

A percentage of every Duck Duck Surprise! sale supports research and treatment for rare mobility conditions affecting athletes and veterans. When you unbox a duck, you’re helping fund solutions—and unboxing hope for someone who needs it.

Shop with Purpose

Disclaimer:

The information in this article is provided for educational and awareness purposes only. It should not be taken as medical advice, diagnosis, or treatment. If you believe you may have Chronic Exertional Compartment Syndrome (CECS), Popliteal Artery Entrapment Syndrome (PAES), or any other medical condition, please consult a qualified healthcare professional. Do not disregard or delay seeking professional medical advice because of something you have read here.

For more information about CECS and PAES, or to find a doctor experienced in diagnosing and treating these conditions, we encourage you to search for a licensed medical professional or specialty clinic.