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Prevalence and Factors Associated with Bone Stress Injury in Middle School Runners. PM & R : the journal of injury, function, and rehabilitation Tenforde, A. S., DeLuca, S., Wu, A. C., Ackerman, K. E., Lewis, M., Rauh, M. J., Heiderscheit, B., Krabak, B. J., Kraus, E., Roberts, W., Troy, K. L., Barrack, M. T. 2021

Abstract

INTRODUCTION: Bone stress injury (BSI) in youth runners are clinically important during times of skeletal growth and are not well studied.OBJECTIVE: Evaluate the prevalence, anatomical distribution, and factors associated with running-related BSI in boy and girl middle school runners.DESIGN: Retrospective cross-sectional study.SETTING: Online survey distributed to middle school runners.METHODS: Survey evaluated BSI history, age, grade, height, weight, eating behaviors, menstrual function, exercise training, and other health characteristics.MAIN OUTCOME MEASUREMENTS: Prevalence and characteristics associated with history of BSI, stratified by cortical-rich (eg, tibia) and trabecular-rich (pelvis and femoral neck) locations.PARTICIPANTS: 2107 runners (n=1250 boys, n=857 girls), age 13.2±0.9y.RESULTS: One hundred-five (4.7%) runners reported a history of 132 BSIs, with higher prevalence in girls than boys (6.7% vs 3.8%, P=0.004). The most common location was the tibia (n=51). Most trabecular-rich BSIs (n=16, 94% total) were sustained by girls (pelvis: n=6; femoral neck: n=6; sacrum: n=4). In girls, consuming <3 daily meals (OR=18.5, 95%CI=7.3, 47.4), eating disorder (9.8, 95%CI=2.0, 47.0), family history of osteoporosis (OR=6.9, 95%CI=2.6, 18.0), and age (OR=1.6, 95%CI=1.0, 2.6) were associated with BSI. In boys, family history of osteoporosis (OR=3.2, 95%CI=1.2, 8.4), prior non-BSI fracture (OR=3.2, 95%CI=1.6, 6.7), and running mileage (OR=1.1, 95%CI=1.0, 1.1) were associated with BSI. Participating in soccer or basketball =2years was associated with lower odds of BSI for both sexes.CONCLUSION: While family history of osteoporosis and prior fracture (non-BSI) were most strongly related to BSI in the youth runners, behaviors contributing to an energy deficit, such as eating disorder and consuming<3 meals daily, also emerged as independent factors associated with BSI. While cross-sectional design limits determining causality, our findings suggest promoting optimal skeletal health through nutrition and participation in other sports including soccer and basketball may address factors associated with BSI in this population. This article is protected by copyright. All rights reserved.

View details for DOI 10.1002/pmrj.12673

View details for PubMedID 34251763