Objectives: Little is yet known about the determinants of bone mineral density (BMD) in young adults. Thus, in this study, we aimed to determine the factors that have an impact on BMD in young men.
Methods: Questionnaires were sent out to 111 male medical students. Information on age, socio-economic status, medical history, lifestyle, physical activity during adolescence, school club participation, current physical activity, and dietary intake were collected by the survey. Height, weight, percent body fat and muscle mass were estimated by bioelectrical impedance, and BMD was obtained using calcaneal quantitative ultrasound. Using the Poisson regression model, prevalence ratios (PRs) were used to estimate the degree of association between risk factors and osteopenia.
Results: The height and current physical activity showed a correlation to the Osteoporosis Index. Among the categorized variables, past physical activity during adolescence (p=0.002) showed a positive effect on the bone mineral content. In the multivariate model, past physical activity (≥1 time/wk) had a protective effect on osteopenia (PR, 0.37; 95% confidence interval [CI], 0.18 to 0.75) and present physical activity (1000 metabolic equivalent of task-min/wk) decreased the risk of osteopenia (PR, 0.64; 95% CI, 0.44 to 0.91).
Conclusions: Past physical activity during adolescence is as important as physical activity in the present for BMD in young men.
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http://dx.doi.org/10.3961/jpmph.2013.46.2.89 | DOI Listing |
J Physiol
January 2025
Clinic for Thoracic and Cardiovascular Surgery, Herz- und Diabeteszentrum NRW, Bad Oeynhausen, Germany.
Am J Physiol Regul Integr Comp Physiol
January 2025
College of Sport and Health, Shandong Sport University, Jinan, Shandong, 250102, China.
Obesity can change the immune microenvironment of adipose tissue and induce inflammation. This study is dedicated to exploring the internal mechanism by which different intensities of exercise reprogram the immune microenvironment of epididymal adipose tissue in nutritionally obese mice. C57BL/6J male obese mouse models were constructed by high-fat diet, which were respectively obese control group (OC), moderate intensity continuous exercise group (HF-M), high intensity continuous exercise group (HF-H) and high intensity intermittent exercise group (HF-T).
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January 2025
Medical Oncology, The Ottawa Hospital Cancer Centre, University of Ottawa Faculty of Medicine, Ottawa, Ontario, Canada.
Importance: Evolving breast cancer treatments have led to improved outcomes but carry a substantial financial burden. The association of treatment costs with the cost-effectiveness of screening mammography is unknown.
Objective: To determine the cost-effectiveness of population-based breast cancer screening in the context of current treatment standards.
World J Pediatr
January 2025
The First Hospital of Peking University, Beijing, China.
Background: Glucose transporter 1 deficiency syndrome (Glut1DS) was initially reported by De Vivo and colleagues in 1991. This disease arises from mutations in the SLC2A1 and presents with a broad clinical spectrum. It is a treatable neuro-metabolic condition, where prompt diagnosis and initiation of ketogenic dietary therapy can markedly enhance the prognosis.
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January 2025
Laboratory of Imaging and Biomarkers in Cognitive Disorders, School of Medical Sciences, Universidade Estadual de Campinas, Campinas, Brazil.
Mild cognitive impairment (MCI) refers to cognitive alterations with preservation of functionality. Individuals with this diagnosis have a higher risk of developing dementia. Non-pharmacological interventions, such as physical exercise, are beneficial for the cognition of this population.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!