Office Workers' Objectively Measured Sedentary Behavior and Physical Activity During and Outside Working Hours

Mar 8, 2014Journal of occupational and environmental medicine

Office workers’ measured sitting and activity levels during and outside work hours

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Abstract

Participants spent 71% of working hours in sedentary behavior.

Sedentary behavior was significantly higher on workdays (68%) compared to nonworkdays (60%).
Light-intensity physical activity was lower on workdays (28%) than on nonworkdays (36%).
Individuals with higher sedentary time at work also exhibited increased sedentary behavior during nonworking hours.
There is no observed compensation in physical activity levels for those who are most sedentary at work.

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OBJECTIVE: To examine objectively determined sedentary behavior and physical activity (PA) during and outside working hours in full-time office workers.

METHODS: A total of 170 participants wore an ActiGraph GT1M accelerometer for 7 days. Time spent sedentary (<100 counts/min), in light-intensity PA (100 to 1951 counts/min), and moderate-to-vigorous PA (≥1952 counts/min) was calculated for workdays (including working hours and nonworking hours) and nonworkdays.

RESULTS: Participants accumulated significantly higher levels of sedentary behavior (68% vs 60%) and lower levels of light-intensity activity (28% vs 36%) on workdays in comparison with nonworkdays. Up to 71% of working hours were spent sedentary. Individuals who were most sedentary at work were also more sedentary outside work.

CONCLUSIONS: Those who are most sedentary at work do not compensate by increasing their PA or reducing their sedentary time outside work. Occupational interventions should address workplace and leisure-time sedentary behavior.

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Office Workers' Objectively Measured Sedentary Behavior and Physical Activity During and Outside Working Hours

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