A number of best practice recommendations have been developed to improve practitioner comfort, similar to those recommended for digestive surgeons. It is recommended to use a height-adjustable examination table, position the screen at eye level, and use a chair during the procedure. The use of lead aprons is essential for certain endoscopic procedures (ERCP drainage of the bile ducts, prosthesis placement, etc.). Several retrospective studies in the surgical and radiological fields have shown an increased risk of MSDs among these populations. To distribute the weight of the apron, several shapes are available to limit stress. An apron weighs approximately 7 kg, due in particular to the amount of lead. The aim of this study is to evaluate the biomechanical forced experienced by the gastroenterologist during ERCP.

Inclusion Criteria:

• Adult subject (age ≥ 18 years)
• hepato-gastroenterologist
• Performing ERCP
• Person who has given consent for participation in the study