[Incidence of increase and decrease in Body Mass Index in middle-aged men and women: four-year follow-up].

The scope of this study was to analyze the incidence of increase and decrease in Body Mass Index (BMI) among middle-aged men and women according to sociodemographic characteristics and classification of nutritional status. It involved a population-based cohort of 689 adults aged 40 to 64 years followed up for four years. The proportion of reduction and increase in BMI (≥1 kg/m²) was verified according to sociodemographic variables and classification of nutritional status in the baseline by means of crude and adjusted Poisson regression.

[Occupational factors and physical activity among public school teachers: a prospective cohort study].

The association between self-reported changes in working conditions and the incidence of recommended levels of leisure-time physical activity (LTPA) among middle and high school teachers of the public school network was analyzed. It is a prospective cohort in which 298 teachers from the public middle and high school network in Londrina, State of Paraná, were monitored for 24 months. The incidence of recommended LTPA levels (≥150 minutes/week) was the study outcome.

[Teachers on temporary employment contracts reveal more frequent consumption of pre-prepared food].

The scope of this article is to analyze the eating behavior of schoolteachers according to the type of employment contract. Interviews were conducted at 20 public state schools in Londrina, State of Paraná, between 2012 and 2013. Of the 978 teachers interviewed, 672 (68.

Longitudinal associations of changes in physical activity and TV viewing with chronic musculoskeletal pain in Brazilian schoolteachers.

This study analyzed the longitudinal association of changes in leisure-time physical activity (LTPA) practice and television viewing (TV viewing) with chronic musculoskeletal pain (CMP). The data about LTPA, TV viewing, and CMP were obtained in 2012 and after 24 months through individual interviews with schoolteachers from elementary and secondary education public schools in a large city in the southern region of Brazil. The statistical analysis was performed using generalized estimating equation regression models adjusted for sex, age, body mass index and depression.

[Remote control or unlikely control? Behavioral economics and the promotion of healthy behaviors¿Control remoto o remota probabilidad de control? La economía comportamental y la promoción de determinados patrones de comportamiento].

Behavioral economics is a field of knowledge and practices that studies the effect of psychological, cognitive, emotional, and social factors relating to decision-making by individuals and institutions. It assumes that human choices are not the result of careful consideration of costs and benefits, and that some aspects (e.g.

Association Between Chronic Pain and Leisure Time Physical Activity and Sedentary Behavior in Schoolteachers.

Chronic pain (CP) is a public health problem with harmful social and individual effects, and its relationships with physical activity (PA) and sedentary behaviors are unclear. This study examined the relationship between CP and PA and time spent watching television as an indicator of leisure time sedentary behavior, and explored the effects of major confounding factors. The information was obtained between 2012 and 2013 from individual interviews with 943 teachers from public schools in Londrina, Brazil.

Insufficient free-time physical activity and occupational factors in Brazilian public school teachers.

Objective: To evaluate if perceived occupational factors are associated with insufficient free-time physical activity in Brazilian public school teachers.

Methods: The relationship between insufficient physical activity (< 150 minutes/week) and variables related to work was analyzed in 978 elementary and high school teachers calculating the prevalence ratio (PR) and 95% confidence interval (95%CI) in Poisson regression models, adjusted for sociodemographic and health variables.

Results: The prevalence of insufficient physical activity was 71.

Perceived barriers to leisure-time physical activity and associated factors in adolescents.

The objective of this study was to identify the prevalence of perceived barriers to leisure-time physical activity in teenagers and to examine the possible association of these barriers with leisure-time physical inactivity. This cross-sectional study was conducted in 2011 and a representative sample of 1,409 high school students from public schools in the city of Londrina/Paraná was selected through multistage sampling. For data collection, the adolescents completed a questionnaire.