Track: Human Factors and Ergonomics

Abstract

This study aims to design an ergonomic birthing chair for public maternity hospitals in the Philippines in order to provide comfort for patients and maternity healthcare workers. Previous studies prove that for normal delivery, patients giving birth in sitting position provides 30% more ease compared to lateral position. In addition, healthcare workers are also exposed to less risk for musculoskeletal disorders if they are in sitting position when assisting patients compared to standing position. In this regard, the researchers intends to design an ergonomic birthing chair for patients with an adjustable chair for healthcare workers by applying the principles of anthropometry that is fit for Filipino users. Ergonomic assessment tools such as CMDQ and RULA were used in order to determine the risks of workers for MSD due to the current design of birthing bed for normal delivery. Statistical tools such as analysis of variance (ANOVA) and correlation analysis were also used in order to determine significant factors that contribute to the MSDs of healthcare workers in maternity hospitals. The result of CMDQ and RULA indicated that musculoskeletal disorders are evident in the following: (a) obstetricians: wrist (95.2%), thighs (86.9%), shoulders (69.05%), forearms (60.7%) and lower back (52.4%); (b) midwives: knees (81.5%), wrists (78.8%), lower back (72.4%) and shoulders (72%). Statistical analysis proved that task factors such as positioning, supporting baby’s head as it emerge, supporting baby’s neck using both hands, delivering placenta and final positioning significantly contributes to the MSD experienced by workers. Thus, the new design of birthing chair proves significant reduction of MSDs for healthcare workers and provides more comfort for patients.