Dados do Trabalho

Título

Association between social jetlag, central blood pressure and pulse wave velocity in shift workers

Introdução

Large-scale world production, 24 hours a day, led to the expansion of the working day beyond the daytime, making shift work more common. Performing work tasks at night increases the chance of changes in biological rhythms and adverse health effects. Shift work can misalign biological rhythms and cause changes in circadian rhythms signaling that the body should be awake when it should be sleeping, which can lead to social jetlag. Sleep deprivation due to night work has a proven relationship with blood pressure changes and a higher risk of developing cardiovascular diseases. Evidence suggests that early alteration of central parameters (pulse wave velocity and central blood pressure) is associated with increased cardiovascular risk and unfavorable clinical outcomes.

Objetivo

To analize the association between social jetlag, central blood pressure and pulse wave velocity in shift workers.

Métodos

It was a quantitative, prospective and cross-sectional study. The study included 83 nursing professionals, being 64 shift workers and 19 day workers. This study had a quantitative and cross-sectional approach. The participants answered questions related to sociodemographic, health conditions, lifestyle, work timetable and social jetlag data through validated questionnaires. Central arterial pressure was measured by the triple Pulse Wave Velocity (PWV) method, using the Arteris AOP® equipment.

Resultados

The mean age of participants was 44.4 years, being 76 females (91,6%) and 7 males (8,4%). More than half (62,7%) did not use to pratice physical activity. The body mass index average was 28,1Kg/m², 81 (97,6%) were not smokers and 43 (51,8%) drank alcoholic beverages The average of the cardiovascular data were: central blood pressure 105x81mmHg, PWV 6,54m/s and 19,6 of Augmentation index (AI@75 ). When adjusted by sex and age in a linear regression analisis, statistically significant associations between social jetlag and PWV (β = 0,125; p = 0,043) and jetlag and cSBP (β = 2,808; p = 0,031) were found.

Conclusões

In the population studied, sleep deprivation, represented by social jetlag, was associated with higher values of cSBP and PWV, which allows us to infer that shift work and its repercussions constitute a risk of arterial stiffness. and long-term negative cardiovascular outcomes.

Palavras -chave

Jetlag Social, Central Blood Pressure, Arterial Stiffness, Shift Workers.