Abstract: Investigates intensive care nurses' resilience levels and their association with personal factors and physical activity behaviour; physical work activity behaviour during a 12-hour shift; and clustered physical activity profiles and associations with resilience. Performs a cross-sectional study with intensive care nurses from four units at three hospitals in Auckland. Employs accelerometry to measure participants' physical activity during four days, two at work and two in their own time, and uses the Connor-Davidson Resilience Scale to measure resilience levels.