Walking for health in pregnancy: assessment by indirect calorimetry and accelerometry

The purpose of this study was to examine RT3 accelerometer activity counts and activity energy expenditure of 36 pregnant women at 20 and 32 weeks' gestation during treadmill walking and free-living conditions. During treadmill walking, oxygen consumption was collected, and activity energy expenditure was estimated for a 30-min walk at a self-selected walking pace. The number of min it would take a pregnant woman to meet exercise recommendations (i.e., kcal/week) were calculated. Preliminary activity count cut points at a self-selected walking pace were then estimated and applied in interpreting free-living data. For the treadmill walking condition, the self-selected walking pace significantly decreased from 20 to 32 weeks' gestation. Additionally, few women (< 12% each day) met physical activity guidelines in the free-living condition. Encouraging pregnant women to walk for 30-40 min per day at a self-selected walking pace may be an appropriate public health recommendation.     

O Bem Amado: A cinematic representation of humor,populism, and death in Brazilian politics

The theatrical play O Bem Amado is based on a tragic and comical Brazilian reality: the way politicians plot their interests, without regard for their voters’ well-being. Populist and eccentric, the protagonist Odorico Paraguaçu embodies gestures, spoken gags, unfilled promises, and other typical characteristics of Brazilian politicians. This article analyzes how the most recent cinematic version of the play staged a character who was born in the 1960s, became a television soap opera hit in the 1970s, starred a movie in the 2000s, and comes back to life in every election period. We intend to make clear that much of what was criticized in Brazilian politics then is still very much alive today. The characteristics that make Odorico laughable are described in the article and are the same ones that highlight aspects of Brazilian political culture, all played out in a lighthearted comedy of manners spiced with political satire. This article introduces the latest version of O Bem Amado with some important background information. Based on scenes extracted from the film, popular comedy is portrayed as an opportunity for the public to take revenge, through mockery, of those who take advantage of their public position in favor of private interest. The article also explores added dimensions of the most recent version, brought on by new technological aspects added when the story was adapted for the big screen.     

Communities of Ruin: Humanitarian Violence and the Amazon's Uncontacted Tribes

This essay investigates portrayals of ‘uncontacted tribes’ of the Amazon by the humanitarian organisations and the popular texts that aim to study and save them. These portrayals rely upon a convergence of figures of racial, gender and sexual deviance recuperated from the age of high imperialism, with newer configurations of the human which emerged in the wake of the Second World War. How might we account for the fact that these objects of preservation are presented – save for a few crucial exceptions – as degraded, almost dead or simply not there? By way of addressing this question, I offer the production of the ‘uncontacted’ as one site for examining the imbrication of humanitarianism and violence.     

Dissimilarity and learning in teams: The role of relational identification and value dissimilarity

The purpose of this study is to shed light on the relationship between team members’ demographic dissimilarity (race/ethnic origin and nationality) from their team and their learning in the team. Drawing from social identity theory and self-categorization theory, it is argued that relational identification with team members and perceived value dissimilarity moderate this relationship. Hypotheses were tested using a survey of individual team members in multiple organizations. Race/ethnic origin dissimilarity negatively influenced learning when relational identification with team members was lower. Race/ethnic origin dissimilarity and national dissimilarity were more negatively related to learning under higher perceived value dissimilarity. Finally, national dissimilarity most negatively influenced learning under lower relational identification with team members and higher perceived value dissimilarity.     

Authoring Future Identities: Latina Girls Reading and Writing the University

In this article, we describe the campus visit we organized for Latina girls (grades 6–12) that participated in Somos Escritoras/We Are Writers. Somos Escritoras is a creative space that invites Latina girls to explore their lives and examine their worlds through art, writing, and theater. We focus on the writing marathon we designed for our visit and share the ways this activity invited girls to read and write the campus, while re-imagining their stories and authoring their futures. Drawing on figured words, we discuss how a campus visit can support Latina girls in constructing identities as future college students and graduates.     

Pathways linking perceived athletic competence and parental support at age 9 years to girls' physical activity at age 11 years

Girls' perceived athletic competence and parental support of physical activity across the ages of 9 to 11 years were examined as predictors of girls' physical activity at age 11 years. Participants were 174 girls and their mothers and fathers who completed questionnaires when the girls were ages 9 and 11 years. Two alternative temporal pathways linking perceived competence, parental support, and physical activity were assessed using path analysis. Results provided evidence for the child elicitation pathway; higher perceived competence at the age of 9 years predicted higher parental support at age 11 years, which, in turn, predicted higher physical activity among girls. Findings highlight the importance of encouraging parents to make a special effort to support physical activity among girls who do not perceive themselves as being athletically competent.     

Preschoolers’ Physical Activity Participation Across a Yearlong Mastery-Motivational Climate Intervention

Purpose: This study sought to determine how children’s participation in physical activity during a mastery-motivational climate changed during a 20-week intervention and to compare it to children’s free-play activity during a typical day at their local day-care facility. Method: Twelve 4-year-old children participated in a mastery-motivational climate physical activity program delivered 2 days a week for 20 weeks during a period of 8 months. All children were fitted with an Actigraph GT3X triaxial accelerometer. Data from the accelerometers were reduced to determine minutes of sedentary time, light physical activity, and moderate-to-vigorous physical activity (MVPA) during (a) all 20 weeks, and (b) Weeks 1 through 4, Weeks 9 through 12, and Weeks 17 to 20 for the mastery climate. Activity levels in the mastery condition were compared to the children’s activity during unplanned free play in Weeks 1, 10, and 20. Results: During the course of the mastery-motivational climate program, participation in sedentary behavior decreased statistically significantly, while participation in MVPA increased statistically significantly. Within the free-play condition, there were no changes in the levels of activity across time, with the children spending on average more than 80% of their time being sedentary. Conclusions: Findings indicate that when specific task structures associated with a mastery climate are included in an instructional setting, these climate manipulations seem to have a direct effect on physical activity levels once the children learned how to manage themselves in the setting. Free-play activity in and of itself does not appear to stimulate MVPA.