Learning Curves of Different Devices for Vaginal Birth on Mannequin

Residents and specialists were exposed to formal lecture having the opportunity of digital evaluation of digital support. After a frontal lecture they will have a formal explanation of mannequin approach for each device (Odòn, Kiwi, Simpson) After one month and after two month they will re-train on mannequin for each device. Before frontal lecture they will answer to a questionnaire evaluating status of residency (year), elderly of specialization (years after degree) and personal experience in labor ward and on mannequin for training. After each training session they will have a further questionnaire evaluating how the training was working on their knowledge and on retaining of skills. All training sessions will be recorded in a blind way erasing voice and face and with a ID computer generated code. All videos will be evaluated by three different specialists of known experience on the three devices