Heart rate variability in shift workers: responses to orthostatism and relationships with anthropometry, body composition, and blood pressure.

Autor: Monteze NM; School of Nutrition, Federal University of Ouro Preto, 35400-000 Ouro Preto, MG, Brazil., Souza BB; School of Medicine, Federal University of Ouro Preto, 35400-000 Ouro Preto, MG, Brazil., Alves HJ; Department of Statistics, Federal University of Ouro Preto, 35400-000 Ouro Preto, MG, Brazil., de Oliveira FL; Department of Statistics, Federal University of Ouro Preto, 35400-000 Ouro Preto, MG, Brazil., de Oliveira JM; Institute of Psychiatry, Federal University of Rio de Janeiro, 22290-140 Rio de Janeiro, RJ, Brazil., de Freitas SN; School of Nutrition, Federal University of Ouro Preto, 35400-000 Ouro Preto, MG, Brazil., do Nascimento Neto RM; School of Medicine, Federal University of Ouro Preto, 35400-000 Ouro Preto, MG, Brazil., Sales ML; Institute of Cancer of São Paulo, 01255-000 São Paulo, SP, Brazil., Souza GG; Department of Biological Sciences, Federal University of Ouro Preto, 35400-000 Ouro Preto, MG, Brazil.
Jazyk: angličtina
Zdroj: BioMed research international [Biomed Res Int] 2015; Vol. 2015, pp. 329057. Date of Electronic Publication: 2015 Oct 01.
DOI: 10.1155/2015/329057
Abstrakt: In order to investigate the response of heart rate variability (HRV) components to postural change and their association with cardiovascular risk factors in shift workers, a cross-sectional study with 438 Brazilian males rotating shift workers was done. Anthropometric, body composition, and clinical measures were collected. Electrocardiogram was recorded for 3 minutes, in the supine and orthostatic position, and HRV components were extracted. Descriptive analyses showed that mean values of body mass index, waist circumference (WC), waist-to-height ratio, visceral fat area (VFA), and blood pressure (BP) were higher than the reference values. In the regression model, age, WC, VFA, and systolic BP showed negative association with HRV components. These findings suggest the need for determining effective strategies for the evaluation and promotion of health among shift workers focused on the altered variables.
Databáze: MEDLINE