This is a voluntary research study to implement and assess the efficacy of interventions aimed to improve surgical ergonomics in OBGYN residents, fellows, and attendings and decrease the incidence of work-related musculoskeletal disorders (WRMD). We want to learn the baseline incidence of WMRD in our population and to see if the implementation of a surgical ergonomics lecture, pre-operative surgical ergonomics time-out, and intra-operative stretch breaks will improve the incidence of WRMD in this population.