Prevalence and factors associated with bone stress injury in middle school runners.

Background: Bone stress injury (BSI) in youth runners is clinically important during times of skeletal growth and is not well studied.

Objective: To evaluate the prevalence, anatomical distribution, and factors associated with running-related BSI in boy and girl middle school runners.

Design: Retrospective cross-sectional study.

Running-related injuries in middle school cross-country runners: Prevalence and characteristics of common injuries.

Background: Understanding the prevalence and factors associated with running-related injuries in middle school runners may guide injury prevention.

Objective: To determine the prevalence of running-related injuries and describe factors related to a history of injury.

Design: Retrospective cross-sectional study.