Fig. 4

Nurse 3 Late Shift on a Medical Ward. Green = break; Red = direct patient care tasks; Grey = indirect patient care tasks. A Data captured with accelerometry. Black lines indicate an accelerometry cut-points: Sedentary (SED) is < 8 counts per epoch; Light-intensity physical activity (LPA) is 8–163; Moderate-intensity physical activity (MPA) is 164–477; Vigorous-intensity physical activity (VPA) is > 478. B Data captured for heart rate monitoring. Black lines indicate a heart rate cut-points: SED is < 40%; LPA is 41–50%; MPA is 5–70%; VPA is > 71%