Impact of Sit-Stand Desks and Cycloergometers on Sedentary Behavior and Health in Emergency Dispatchers and Firefighters

What this Trial Is About

Researchers are studying how sedentary behavior changes during work in emergency medical dispatchers and firefighters. The study compares a normal 12-hour workday to two behavioral interventions using a sit-and-stand desk with at least 5 minutes of standing per hour, and using a cycloergometer placed under the desk. This study uses a crossover design where participants experience all conditions in random order. During each 12-hour workday, participants wear devices that continuously measure heart rate variability, electrodermal activity, physical activity levels, and blood sugar. Blood and saliva samples are collected at multiple times throughout each workday. Participants also complete questionnaires about psychosocial factors, stress, fatigue, anxiety, mood, physical activity, sedentary time, and daily consumption of substances such as tobacco, alcohol, and caffeine. Each participant takes part for three separate days, one for each condition. Data collected include physiological measurements, stress and mood assessments, and detailed reports on physical activity and sedentary behavior. This comprehensive monitoring helps researchers understand how sit-stand desks and cycloergometers impact health and occupational stress. The study is sponsored by University Hospital, Clermont-Ferrand.

Effects of a Sedentary Behaviors at Work on Health in Emergency Medical Dispatchers and CODIS Operators (SECODIS)