Using Wearable Sensor Technology to Analyze Running Technique and Prospective Running-Related Injuries During United...

Area of Science:

• Sports Medicine
• Military Health
• Biomechanics

Background:

• Running biomechanics are implicated in running-related injuries among recreational and military runners.
• Understanding injury risk factors is crucial for preventing injuries in physically demanding training environments.

Purpose of the Study:

• To investigate the association between personal characteristics and running biomechanics with running-related injury incidence and time to injury in military cadets.
• To test the hypothesis that rearfoot strike, high impact rate, or low step rate predict higher injury incidence and shorter time to injury.

Main Methods:

• A prospective cohort study involving 674 military cadets over 60 days of basic training.
• On-shoe wearable sensors collected data on foot strike pattern, impact rate, pace, step rate, step length, and contact time.
• Injuries were identified via medical records; statistical analyses included t-tests, chi-square, Kaplan-Meier curves, and Cox regression models.

Main Results:

• 11% of cadets sustained running-related injuries.
• Female sex and a history of prior injury were significantly associated with a higher risk of injury.
• Running biomechanical variables, including foot strike pattern and step rate, were not found to be associated with injury risk.

Conclusions:

• Non-modifiable factors like female sex and prior injury history are significant predictors of running-related injuries in military cadets.
• The wearable sensor-derived running biomechanics in this study did not correlate with injury risk.
• Further research may explore other biomechanical or intrinsic factors influencing injury in this population.