Year: 2025
Type: article
Study design: Observational Study
Abstract: Background: Bone mineralization can be influenced by physical activity and dietary factors; however, the relative contributions of these factors are not well defined. Physical activity in adolescents can be implemented with physical education (PE) classes and there is no reported data on their impact on bone mineralization. This study investigates the relationship between PE class attendance, dietary factors, and bone mineralization in adolescents. Methods: 57 adolescents (median age 17.00 [16.00–17.00] years) were enrolled in this study. Bone mineralization was assessed with bioelectrical impedance analysis (BIA) and dietary knowledge and selected foods intakes were assessed with a validated questionnaire. Results: PE attendance and dietary knowledge were positively associated with bone mineralization in the multivariate models (R2 = 0.85, p < 0.001 for the best model, and R2 = 0.81, p < 0.001 for the simplified model), and PE attendance was the dominant positive factor among the modifiable ones (B = 0.20, p = 0.02, and B = 0.25, p = 0.004, respectively). The impact of calcium sources intake was diminished when controlled for PE class attendance. Conclusions: PE attendance is one of the key factors of bone mineralization in adolescents. Our study showed that the role of calcium sources intake was diminished when acknowledging physical activity data, however dietary knowledge remained a significant predictor. Enhancing dietary knowledge and promoting physical activity are key targets for improving bone health.
Source: Nutrients
DOI: 10.3390/nu17183016
Authors: Agata Przytula, Joanna Popiolek-Kalisz
Institution: Medical University of Lublin
Language: English
Subfield: Orthopedics and Sports Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $3,499
Funder: Uniwersytet Medyczny w Lublinie
Award: G745424991
OpenAlex ID: W4414390881
