ABSTRACT
Objetivo descrever o impacto do trabalho em turnos na saúde, no sono e na qualidade de vida de maquinistas ferroviários. Métodos foram avaliados 611 maquinistas (escalas de trabalho 4 x 1 e 6 x 2), por meio de polissonografia, Índice da Qualidade do Sono de Pittsburgh, Índice de Gravidade de Insônia, Questionário de Qualidade de Vida SF-36, Questionário de Horne e Östberg, Capacidade de Trabalho e Escala de Sonolência de Epworth. Resultados os maquinistas apresentaram idade média de 36,6 ± 15,1 anos, 22% apresentaram obesidade e 38,1% risco para doenças cardiovasculares. Em relação ao sono, 64,2% dos maquinistas relataram qualidade ruim de sono, 11,6% apresentaram distúrbios do sono e 29,3% sonolência excessiva. Os resultados da polissonografia mostraram que 36,1% deles apresentaram apneia do sono e 47,2% demonstraram eficiência do sono reduzida. Além disso, os maquinistas apresentaram baixos índices de qualidade de vida, especialmente os da escala 4 x 1. Conclusão é possível afirmar, na população estudada, que a exposição ao trabalho em turnos, a rotatividade inversa, pouco tempo dispensado às folgas e horas extras de trabalho estão associados a danos ao bem-estar, saúde, sociabilização e ao sono de qualidade desses trabalhadores e que provavelmente os fatores relacionados aos turnos de trabalho contribuem para esses danos. .
Objective to describe the impact of shiftwork on the health, sleep and quality of life of railway drivers. Methods six hundred eleven railway drivers (schedule 4x1 and 6x2) were evaluated by polysomnography, Pittsburgh Sleep Quality Index, Insomnia Severity Index, Work Capacity Index, Quality of Life questionnaire (SF-36), Morningness-eveningness questionnaire (MEQ), and Epworth Sleepiness Scale. Results railway drivers assessed were 36.6 ± 15.1 years of age, 22% were obese, and 38.1% presented risks for cardiovascular disease. Poor sleep quality 64.2%, 11.6% had sleep disorders and 29.3% excessive sleepiness. The polysomnography results showed that 36.1% of them presented sleep apnea and 47.2% had significant reduction in sleep efficiency. The railway drivers showed low levels of quality of life, especially those working under the 4x1 schedule. Conclusion it is possible to assert that exposure to shiftwork, reverse rotation schedule, few days off, and working overtime are associated with impairment to well-being, health, sociability and workers’ sleep quality, and the factors related to shiftwork probably contribute to these findings. .
ABSTRACT
INTRODUCTION: Sleepiness is responsible for a considerable proportion of traffic accidents. It is thus an important traffic safety issue to find a robust, objective and practical way to estimate the amount of time a person has been awake. To attempt to meet this goal, we investigated the relationship between sleepiness and posture control. METHODS: Subjects were kept awake for 36 hours and posturographic data during quiet standing were collected every two hours by means of a force platform. The standing surface (rigid surface or foam surface) and visual (eyes open or eyes closed) conditions were manipulated. RESULTS: In the more challenging conditions (with foam surface and/or eyes closed), the body sway variables derived from the center of the pressure measurement increased significantly when time since awakening became greater than 21 h in almost all subjects. CONCLUSION: Based on this result, we propose a practical protocol that could robustly assess whether time since awakening was greater than 21 h.