The study included 200 employees from the departments of administration, support, direct patient care, and maintenance of hospital machinery and equipment, who worked in the day and night shifts and accepted to participate in the study. The study was performed during the period from April 2013 to December 2014 participants were recruited during annual medical exams at a university hospital in the city of Porto Alegre, southern Brazil. The objective of this study was to evaluate the association between night work and obesity, as well as quality of life among the workers in the South of Brazil. In this sense, it is believed that the reduction in the number of hours of sleep may be related to the increased incidence of obesity and overweight, although the mechanisms of such a relationship are not yet fully known. Restricted sleep has metabolic and endocrine consequences, including reduction of glucose tolerance and insulin sensitivity, increased serum concentration of nocturnal cortisol, rise of ghrelin levels, reduction of leptin levels and an increased feeling of hunger and appetite. Short sleep (defined as ≤ 6 h of sleep/day) and sleep disorders due to shift work, have been associated with negative effects on the hormone profile and a positive energy balance. found that the reduction of sleep duration may also increase the risk of cardiovascular diseases, insulin resistance, diabetes as well as obesity. Some authors observed a positive relationship between night work or shifts with the increased body mass index (BMI), and this is significantly greater compared to the day shift workers. However, other factors, besides genetic profile, have been implicated in its pathogenesis, such as duration of sleep and shift work. It is acknowledged that life style related factors, such as the excessive intake of calories and sedentary life are the main factors responsible for increased obesity. The prevalence of obesity has grown gradually over the last few decades in the USA and is associated with an increase in overall mortality and comorbidities secondary to the disease. Several studies have demonstrated that shift work may induce the development of dyslipidemias, diabetes mellitus and systemic arterial hypertension (SAH). Exposure to continuous light during the night, frequent snacks, little physical activity, nocturnal eating habits and nocturnal physical activities are among the possible triggering factors. Night work or shift work presents common characteristics which may interfere in the circadian physiological process causing desynchronization. In the USA and Europe it is estimated that about 18 to 20% of workers are involved in night work or in shifts. Shift work can be continuous, where workers follow each other at the workplace, or in rotating shifts. Shift work has been definitively incorporated into society, and is no longer limited to essential services such as health, public safety and heavy industry, but also occurs in other goods and services production branches. Night work was a risk factor for abdominal obesity, social jetlag was higher in night shift workers and it was associated with presence of obesity. We found no difference for quality of life between shifts. Social jetlag had an association with obesity. MCTQ parameters showed that night shift workers had lower sleep duration during working days and also during free days, associated with a higher level of social jetlag. Night shift workers had almost 3 times higher association with abdominal obesity independent of age and gender, than day shift workers. Night shift workers sleep less hours, had higher weight, body mass index and abdominal circumference when compared to the day shift workers. In this sample, the night shift workers had higher income and were older compared to day shift workers. Venous blood was collected after 12-h of fasting for laboratory tests. ![]() ![]() The physical activity was evaluated using the International Physical Activity Questionnaire (IPAQ), Chronotypes and daily sleep preference were investigated using Munich Chronotype Questionnaire (MCTQ). ![]() Sociodemographic data were evaluated and BREF WHOQOL was used for quality of life. MethodsĪ cross-sectional study was performed from April 2013 to December 2014 with 200 workers of a University Hospital. The aim of this study was to evaluate the association between shift work, quality of life and obesity among healthcare workers of a Brazilian University Hospital. Obesity is associated with increased general mortality and comorbidities, it is multifactorial and some evidence has shown that sleep duration and shift work may be implicated in its pathogenesis.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |