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Interscholastic Athletics and Bone Strength: The Iowa Bone Development Study.
Anna Pashkova1, Jeffrey M Hartman2, Elena M Letuchy3
1Division of Medical Dietetics, The Ohio State University, Columbus, Ohio.
Journal of Strength and Conditioning Research
|May 28, 2020
Summary
High-power sports participation in adolescents significantly enhances bone strength in both males and females. Promoting these activities is crucial for achieving optimal bone mass before peak development.
Area of Science:
- Exercise physiology
- Pediatric bone health
- Sports science
Background:
- Adolescence is a critical period for bone development, with physical activity influencing peak bone mass.
- Interscholastic sports participation offers a structured environment for physical activity among adolescents.
- Understanding the impact of different sport intensities on bone health is essential for public health initiatives.
Purpose of the Study:
- To investigate the association between participation in various interscholastic sports and bone strength in adolescents.
- To compare bone strength outcomes across different levels of sport-related physical exertion (no-power, low-power, high-power).
Main Methods:
- Utilized data from 380 adolescents in the Iowa Bone Development Study.
- Categorized participants into no-power, low-power, and high-power sport groups.
- Employed peripheral quantitative computed tomography (pQCT) to assess bone strength indices (torsion, cortical content, compression strength).
Main Results:
- High-power sport participation showed significant positive differences in all bone strength measures for both males and females compared to no-power sports.
- Significant differences in bone strength were observed between low-power and no-power groups for males, but not females.
- Bone strength outcomes were positively correlated with the intensity of interscholastic sports engaged in.
Conclusions:
- High-power interscholastic sports participation is strongly linked to superior bone strength in adolescents.
- Encouraging participation in high-power sports may be vital for maximizing bone development during late adolescence.
- Targeted promotion of high-intensity athletic activities can support lifelong bone health.
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