The effect of whole-body vibration on public transportation passenger performance while typing on smartphones.

This study verified typing performance on smartphones of public transportation passengers using subjective assessments of comfort and difficulty and objective assessments of the number of errors and typing speed. Three frequency values (5, 10, and 15 Hz), two magnitudes (0.6 and 1.

[Determinants of paid work among older Brazilians using structural equation modeling: evidence from the ELSI-Brazil study].

This study aimed to develop a conceptual model and to explore direct and indirect associations between paid work and life-course factors in a representative national sample of the Brazilian population 50 years and older. The analysis was based on 8,903 participants in the baseline of the Brazilian Longitudinal Study of Aging (ELSI-Brazil). The exposure variables were sociodemographic, health, work, and social interaction variables.

Effects of vehicular whole-body vibration on focus measured by a mobile app for brain training: A pilot study on the influence of gender and Attention Deficit Hyperactivity Disorder.

Background: Students, as well as other professional drivers, must have focus to adequately perform their tasks. However, they are subjected to whole-body vibration (WBV) in their journey to school or work.

Objective: To investigate the influence of in-loco WBV exposure on focus, both instantaneously, as well as residually.

[Influence of education and health conditions on paid work of elderly Brazilians].

The objective of this study was to determine associations between socio-demographic and health characteristics with paid work among elderly Brazilians. The analysis included 11,177 subjects aged 60 years and over from the National Health Survey conducted in 2013. The multivariate analysis was based on prevalence ratios and their respective 95% confidence intervals estimated by Poisson regression.

Life course and work ability among older adults: ELSI-Brazil.

Objective: To examine factors associated with perception of work ability in a nationally representative sample of Brazilians aged 50 years and over.

Methods: We used data from 8,903 participants of the baseline survey of the Brazilian Longitudinal Study of Aging (ELSI-Brazil). The dependent variable was self-rated work ability (good or very good versus fair, poor, or very poor).

Socioeconomic position and disability: "The Belo Horizonte, Brazil Health Study".

This study aims to investigate the association of socioeconomic status and comorbidities of self-reported disability. Data were obtained from a population survey in Belo Horizonte from 2008 to 2009. The sample was probabilistic and stratified by conglomerates in three stages: census tracts, households and individuals.

Life course socioeconomic position and C-reactive protein: mediating role of health-risk behaviors and metabolic alterations. The Brazilian Longitudinal Study of Adult Health (ELSA-Brasil).

Background: Chronic inflammation has been postulated to be one mediating mechanism explaining the association between low socioeconomic position (SEP) and cardiovascular disease (CVD). We sought to examine the association between life course SEP and C-reactive protein (CRP) levels in adulthood, and to evaluate the extent to which health-risk behaviors and metabolic alterations mediate this association. Additionally, we explored the possible modifying influence of gender.