Bone geometry and lower extremity bone stress injuries in male runners
| Autor: | Kristin L. Popp, Adam C. Frye, Steven D. Stovitz, Julie M. Hughes |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Adult
Male Adolescent Fractures Stress Bone density Dentistry Physical Therapy Sports Therapy and Rehabilitation Body size Running Young Adult 03 medical and health sciences 0302 clinical medicine Bone Density medicine Humans Orthopedics and Sports Medicine 030212 general & internal medicine Tibia Quantitative computed tomography Bone geometry Bone mineral Anthropometry medicine.diagnostic_test business.industry Incidence Section modulus 030229 sport sciences bacterial infections and mycoses musculoskeletal system Cross-Sectional Studies medicine.anatomical_structure Lower Extremity Athletic Injuries Cortical bone Tomography X-Ray Computed business human activities |
| Zdroj: | Journal of Science and Medicine in Sport. 23:145-150 |
| ISSN: | 1440-2440 |
| DOI: | 10.1016/j.jsams.2019.09.009 |
| Popis: | Bone stress injuries (BSI) are common among distance runners and research investigations examining risk factors for BSI among men are limited. Therefore, investigations are needed to determine if men with a history of BSI have skeletal properties that may heighten BSI incidence. Objectives To analyze differences in bone density, bone geometry, and estimates of bone strength in male runners with and without a BSI history. Design Cross-sectional. Methods We recruited 36 male distance runners ages 18–41 for this study. We used peripheral quantitative computed tomography (pQCT) to assess volumetric bone mineral density (vBMD, mg/mm3), bone geometry (total and cortical bone area, mm2), tibia robustness (total area/tibia length, mm) and estimates of bone strength (section modulus and polar strength-strain index, mm3) at 5 tibial sites. Results After adjusting for age, the BSI group had more slender tibias (9%), lower stress strain indices (−16%), lower section moduli (−17%) and smaller total cross-sectional (−11%) and cortical areas (−12%) at the 66% site of the tibia compared with controls (P Conclusions These results indicate that men with a history of BSI have lower estimated bending strength compared to controls because of narrower tibias. However, differences are largely attenuated in the distal ½ of the tibia after adjusting for body size. Thus, smaller tibia size, particularly at the mid-diaphysis, may be an important indicator for BSI incidence. |
| Databáze: | OpenAIRE |
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