Publications by authors named "Pedro Hallal"
The present study aimed at describing and comparing the physical activity (PA) patterns of adolescents from a middle-income country over a 4-year period. This is a longitudinal observational study (four waves of data collection, 2014-2017) with 668 adolescents aged 10-13 years in 2014 (mean age of 11.8 ± 0.
View Article and Find Full Text PDFObjective: To outline the features of COVID-19 in Brazil through a countrywide telephone survey.
Methods: Data from the Telephone Survey of Risk Factors for Chronic Noncommunicable Diseases During the Pandemic (Covitel), a telephone survey of individuals aged 18 years or older from all macro-regions of Brazil, were used. The questionnaire included sociodemographic characteristics and outcomes related to COVID-19 infection, severity, vaccination, and use of masks.
To evaluate the cross-sectional association of physical activity during pregnancy with gestational weight gain and verify if associations are modified by levels of sleep duration and efficiency. Mothers who were participants of the 2015 Pelotas (Brazil) Birth Cohort study were analyzed. Physical activity (PA) and sleep were measured using the nondominant wrist accelerometer model wGT3X-BT (ActiGraph, Pensacola, FL).
View Article and Find Full Text PDFObjective: To estimate the prevalence of COVID-19 diagnosis and hospital admissions, and to evaluate their correlates in a nationwide Brazilian sample.
Methods: A cross-sectional study was carried out with secondary data from the Telephone Survey of Risk Factors for Chronic Noncommunicable Diseases in Times of Pandemic - Covitel 2022. The Covitel study uses cluster sampling, carried out through random digit dialing on landlines and cell phones, among people aged 18 years or over.
Analysis of the Prevalence of Traumatic Dental Injuries in the Primary Dentition: Findings From a Cohort Study Involving 4-Year-Old Children From South Brazil.
Dent Traumatol
November 2024
Objective: To identify factors associated with the prevalence of traumatic dental injuries (TDI) in children at 4 years of age.
Methods: Participants from the 2015 Pelotas (Brazil) birth cohort were included. Demographic, socioeconomic, behavioral, and environmental data were collected through interviews and physical examinations during cohort follow-up.
Introduction: Community health workers (CHWs) stand as critical frontline agents within the Brazilian healthcare system. In this qualitative study, we examined the impact of a community-based behavioral change intervention spearheaded by CHWs.
Methods: The intervention focused on promoting healthy behaviors - physical activity, nutrition, and emotional well-being - among individuals aged 50 and older living in a rural community in Brazil.
City mobility patterns during the COVID-19 pandemic: analysis of a global natural experiment.
Lancet Public Health
November 2024
Background: During the COVID-19 pandemic, changes were seen in city mobility patterns around the world, including in active transportation (walking, cycling, micromobility, and public transit use), creating a unique opportunity for global public health lessons and action. We aimed to analyse a global natural experiment exploring city mobility patterns during the pandemic and how they related to the implementation of COVID-19-related policies.
Methods: We obtained data from Apple's Mobility Trends Reports on city mobility indexes for 296 cities from Jan 13, 2020 to Feb 4, 2022.
Background: Ubiquitous car ownership may affect children's activity and health. We assessed the cross-sectional and longitudinal associations between household car ownership and children's daily time spent sedentary (SED) and in moderate to vigorous physical activity (MVPA).
Methods: Pooled cohort data were from the International Children's Accelerometry Database.
Background: The purpose of this paper is to examine the evolution of physical activity research and the comprehensiveness of national physical activity policies and surveillance systems in Canada.
Methods: A systematic review was conducted by the Global Observatory for Physical Activity (GoPA! ) on physical activity and health publications between 1950 and 2019. Findings from Canada were extracted and included in the present analysis.
Objectives: This study aims to evaluate the gender inequalities in accelerometer-based physical activity (PA) across different age groups using data from 5 Pelotas (Brazil) cohorts.
Methods: The data come from 4 birth cohort studies, covering all live births in the urban area of Pelotas for each respective year (1982, 1993, 2004, and 2015), and the Como vai? cohort study focusing on 60 years and above. Raw accelerometry data were collected on the nondominant wrist using GENEActive/ActiGraph devices and processed with the GGIR package.
Background: Physical activity is crucial for maintaining health and preventing chronic diseases. However, climate conditions can impact physical activity patterns, and conversely, physical activity can impact climate change. This umbrella review aims to summarize the existing evidence regarding the relationships between physical activity and climate change, as revealed in previous reviews.
View Article and Find Full Text PDFArticle Synopsis
- The study examines government efforts to promote physical activity (PA) both before and during the COVID-19 pandemic, highlighting its impact on PA policies worldwide.
- Surveys from 2023 included responses from 105 participants across 61 countries, revealing that while 82% had national PA policies, COVID-19 significantly disrupted their implementation, with less than 40% integrating PA into their pandemic responses.
- The findings emphasize the need to prioritize PA in public health agendas post-pandemic, focusing on resource allocation, partnerships, and addressing participation inequities, which are vital for effective policy moving forward.
Objective: To examine the acute and chronic effects of reducing prolonged sedentary time (ST) with physical activity (PA) on cognitive and brain health.
Design: Systematic review and meta-analysis.
Data Sources: PubMed, Scopus, CINAHL, PsycINFO, SPORTDiscus, Web of Science, and ProQuest Dissertation and Theses.
Article Synopsis
- This article analyzes the growth of physical activity and health research in China from 1950 to 2019, focusing on 610 publications that included data collected in China.
- The findings show a significant increase in publications over time, from just one per year in the 1990s to an average of 47 per year in the 2010s, with most research concentrated on correlates, determinants, and health consequences of physical activity.
- The study also highlights that female authorship in these publications increased from 64% in the 1990s to 90% in the 2010s, while research on interventions and policy remains relatively scarce compared to other areas.
Background: The objective of this study was to investigate gender differences in authorship in physical activity and health research.
Methods: A bibliometric study including 23,399 articles from 105 countries was conducted to estimate the participation of female researchers in physical activity publications from 1950 to 2019. The frequency of female researchers was analyzed and classified by first and last authors and the overall percentage of female authors by region and country.
Objective: To describe the evolution of physical activity (PA) research in Africa, examine income and gender inequalities, and discuss future possibilities.
Methods: A secondary analyses of the Global Observatory for Physical Activity data on PA research in Africa (1950-2019).
Results: We identified 514 PA articles from 47 African countries in the past 70 years.
Article Synopsis
- This study explores the national and subnational physical activity (PA) policy processes in selected Latin American countries, focusing on how these levels interact during agenda setting, formulation, adoption, implementation, and evaluation of policies.
- Using the GoPA! INTEGRATE-PA-Pol tool, data was collected from policymakers in Colombia, Costa Rica, Ecuador, and Mexico, finding that most respondents work in health-related sectors and report the existence of PA policies linked to noncommunicable disease prevention.
- Results indicate a central role for subnational actors in PA promotion, but low collaboration between national and subnational policymakers across the entire policy process, highlighting a need for better engagement.