Aim of the study is to test the feasibility of transcutaneous oxygen pressure (TcPO2) recording in the diagnosis of iliac kinking in 20 patients with suspected of endofibrosisoriliackinking and 40 asymptomatic control heathy subjects

Patients suspected of PES and healthy controls after detailled explanation of the protocol will have a recording of tcpO2 on both calves and will perform a series of thigh flexion in the standing position.

Inclusion Criteria:

- Age over 18 years Insurance company affiliation Symptoms consistent with iliac kinking (patients) or absence of symptoms (controls)

Exclusion Criteria:

• Refuse to participate Exclusion period from another protocole Non affiliation to the French healthcare system