Social Jetlag Among Night Workers is Negatively Associated with the Frequency of Moderate or Vigorous Physical Activity and with Energy Expenditure Related to Physical Activity

Dec 24, 2016Journal of biological rhythms

Social Jetlag in Night Workers Linked to Less Moderate or Vigorous Exercise and Lower Activity-Related Energy Use

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Abstract

Among 423 shift workers, the prevalence of insufficiently active individuals was high across all shifts.

  • Physical activity levels were assessed using the International Physical Activity Questionnaire (IPAQ-SF).
  • Social jetlag (SJL) was calculated based on mid-sleep times on work and free days.
  • Negative associations were found between SJL and various measures of physical activity among night-shift workers.
  • No significant differences in sedentary behavior were observed between different work shifts.
  • The findings indicate that SJL may negatively impact physical activity levels in night-shift workers.

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