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Quantifying exposure to running for meaningful insights into running-related injuries
  1. John J Davis IV,
  2. Allison H Gruber
  1. Department of Kinesiology, School of Public Health, Indiana University, Bloomington, Indiana, USA
  1. Correspondence to Dr Allison H Gruber; ahgruber{at}


The very term ‘running-related overuse injury’ implies the importance of ‘use’, or exposure, to running. Risk factors for running-related injury can be better understood when exposure to running is quantified using either external or internal training loads. The advent of objective methods for quantifying exposure to running, such as global positioning system watches, smartphones, commercial activity monitors and research-grade wearable sensors, make it possible for researchers, coaches and clinicians to track exposure to running with unprecedented detail. This viewpoint discusses practical issues surrounding the use and analysis of data from such devices, including how wearable devices can be used to assess both internal and external training loads. We advocate for an integrative approach where data from multiple sources are used in combination to directly measure exposure to running in diverse settings.

  • accelerometer
  • running
  • measurement

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  • Contributors Both authors made substantial contributions to the conception, drafting and revisions of this work.

  • Funding The authors did not receive a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent for publication Not required.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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