Abstract

Restrictions of sleep predispose to experience, in the long term, excess malnutrition and non-transmissible chronic diseases. The objective of this research has to study the inuence of working shifts on nutritional status lipid prole and fasting blood glucose (FBG). Study of a series of cases considered a total of 47 recruited workers from which 31 of them had a rotating shift (day and night) and 16 a steady shift (day). The nutritional assessment involved: BMI (Body Mass Index), waist and hip circumference, tricipital, bicipital, subescapular and suprailiac skinfolds. Sleep hours were studied with a weekly record, food intake was studied by means of 24-hours dietary recall. It was determined: total cholesterol, c- HDL, c-LDL, blood triglycerides and fasting blood glucose (FBG). The sample was composed by 87% women and 13% men, average age of 38,7 years [19,0] v/s 44,7[25,2] (p=0,420) in rotating and steady shifts respectively. The rotating shift did not show any signicant differences compared to the steady shift in terms of anthropometric parameters except for subescapular skinfold that was signicantly higher (p=0,032) in relation to the macronutrients intake. Lipid prole and glycemia did not show important differences (p=>0, 05). The prevalence of the nutritional status was: rotating shift 35,4% normal, 45,1% overweight and 19,5% obese. On the other hand, the steady shift showed: 43,7 % normal and 56,3% overweight. Seniority only in the rotating shift showed a positive correlation of BMI (r=0,436 p<0,005) body fat (r=0,454 p<0,005) total cholesterol (r= 0,394 p<0,005) LDL (r=0,484 p<0,005) and glycemia (r=0,405 p<0,005). We concluded that workers of the rotating and steady shift did not show signicant differences among variables studied except for the subescapular skinfold that was signicantly higher in the rotating shift, that can be associated to predominantly central fat distribution. Key words: working shift, nutritional standing, lipid prole, sleep restriction.