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During cardiopulmonary resuscitation (CPR), it is recommended to alternate rescuers every 2min when two or more rescuers are available, regardless of the rescuer's position. It is unclear, however, whether rescuer fatigue depends on the rescuer's position.

To compare rescuer fatigue by doing CPR in different positions.

This randomized controlled crossover trial studied 24 experienced health-care providers from a teaching hospital in southern Taiwan. Each participant performed CPR for 10min on days 1, 8, and 15 of the study in three different positions: kneeling, standing on a taboret, and standing on the floor. Effective compression was recorded using the Laerdal Resusci-Anne Skillreporter manikin. The range of motion (ROM) of the elbows and lower back were detected using a flexible goniometer, and the severity of back pain was scored using the Brief Pain Inventory …