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Background: Most US children and adolescents do not meet recommended daily physical activity (PA) guidelines. Determinants of PA are complex; however, access to opportunities precedes actual PA engagement. Schools are well positioned to support student PA through the provision of physical education (PE) and before, during, and after school PA opportunities through comprehensive (ie, expanded) school PA programming. Monitoring access to school PE and PA opportunities is an essential function of public health. However, there are limited comprehensive data across K-12 settings. Therefore, the purpose of this study was to evaluate students' access to PE and expanded recreation time before, during, and after school PA opportunities in K-12 schools across 25 US states.
Methods: The US Physical Education and Physical Activity Policy questionnaire was completed by 4845 K-12 PE teachers across 25 states, representing diverse geographical regions, with responses standardized across varying academic calendars. Descriptive statistics were used to illustrate access to PE and PA opportunities.
Results: Access to PE and PA varied, with elementary schools generally providing more opportunities than middle and high schools. There was an overall misalignment with national PE and recess recommendations. Limited before and after school PA opportunities were also reported.
Discussion: The relative dearth of access to PE and expanded PA opportunities currently available to students in relation to national guidelines shows a need for states to prioritize expanding access to PE and recreational PA to reduce disparities. To ensure more equitable student access, collaborative efforts among educators, policymakers, and stakeholders are essential.
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http://dx.doi.org/10.1123/jpah.2024-0340 | DOI Listing |
JCO Glob Oncol
May 2025
Grupo Oncoclínicas, São Paulo, Brazil.
Head and neck squamous cell carcinoma (HNSCC) represents a significant public health burden in developing countries, where access to early diagnosis, comprehensive care, and research infrastructure is limited. This article synthesizes the insights generated during a Fireside Chat convened by members of the Latin American Cooperative Oncology Group (LACOG)-Head and Neck and the Brazilian Group of Head and Neck Cancer (GBCP), with the participation of international expert Professor Hisham Mehanna. The discussion addressed key challenges and opportunities in clinical and translational research within resource-constrained settings.
View Article and Find Full Text PDFMenopause
September 2025
Epidemiology Division, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.
Objective: The objective of the present work is to: (1) describe the trends in obesity among premenopausal and postmenopausal women in the United States between 1999 and 2018, and (2) describe the effect of aging on body mass index in women, using novel BMI-for-age percentile curves.
Methods: Data from the National Health and Nutrition Examination Survey (NHANES) collected between 1999 and 2018, including self-identified female participants older than 20 years, was used. Menopause status was self-reported, and body mass index (BMI, kg/m2) was calculated based on measured height and weight.
PLoS Comput Biol
September 2025
Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland.
Ubiquity of cancer across the tree of life yields opportunities to understand variation in cancer defences across species. Peto's paradox, the finding that large-bodied species do not suffer from more cancer despite having more cells at risk of oncogenic mutations compared to small species, can be explained if large size selects for better cancer defences. Since birds live longer than non-flying mammals of equivalent size, and are descendants of moderate-sized dinosaurs, we ask whether ancestral cancer defences are retained if body size shrinks in a lineage.
View Article and Find Full Text PDFPLoS One
September 2025
The George Institute for Global Health, Imperial College London, London, United Kingdom.
Background: Tobacco use remains a major public health challenge in sub-Saharan Africa, with significant gendered dimensions. Place of residence is an important determinant, as rural and urban contexts shape exposure, access, and consumption patterns. This study investigates rural-urban disparities in tobacco use among women in sub-Saharan Africa, with a focus on quantifying the relative contributions of socioeconomic factors.
View Article and Find Full Text PDFPLoS One
September 2025
Yale Program for Recovery and Community Health (PRCH), New Haven, Connecticut, United States of America.
Background: Rates of acute myocardial infarction (AMI) morbidity and mortality have increased in young women aged ≤55 years but little is known about their experience recovering from and living with AMI. A personal recovery (experience of an identity shift manifested in both losses and gains) has been reported among general AMI survivors. Our objective was to gain insights into young women's perspectives on long-term post-AMI recovery, under the patient-centered personal recovery framework.
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