Utilization of High Frequency Ultrasound to Diagnose Chronic Exertional Compartment Syndrome

Inclusion Criteria: * Male or female ages 13 and over * Patients with any combination of the following symptoms who would otherwise be evaluated for CECS: * Symptoms of leg pain worsened with activity and relieved by rest * Pain that is generalized in the anterior or lateral compartments of lower leg * Numbness or tingling in the distribution of the superficial peroneal nerve * Sensation of "slap foot" or anterior/lateral compartment weakness * Able to exercise for CPT testing: Patients will be asked to go through a standardized warm up on a treadmill with increasing speed and incline settings until symptoms are achieved. They will maintain exercise for a minimum of five minutes or to patient tolerance. Exclusion Criteria: * Known vascular disease * Neurogenic or radicular symptoms