Shift Work-Related Problems in 16-h Night Shift Nurses (2): Effects on Subjective Symptoms, Physical Activity, Heart Rate, and Sleep.

Nurses working 16-hour night shifts reported similar or lower levels of sleepiness and fatigue compared to those on 8-hour evening/night shifts.

• Subjective symptoms such as difficulty concentrating and fatigue were comparable between the two shifts.
• Physical activity levels and heart rate (HR) were similar or lower during the 16-hour shifts compared to the 8-hour shifts.
• Main sleep duration was longer after shifts and during days off for the 16-hour shift nurses.
• The findings suggest that with appropriate strategies, 16-hour night shifts may not lead to significantly greater work-related issues than 8-hour shifts.

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