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Single-Session Distance Spikes Predict Running Injury Risk

An academic article, published in the British Journal of Sports Medicine, presents the findings of a large cohort study titled, "How much running is too much? Identifying high-risk running sessions in a 5200-person cohort study." This study explored the relationship between sudden increases in running distance and the risk of overuse injuries among adult runners, utilizing data collected from Garmin devices over an eighteen-month period. The researchers found a significant dose-response relationship between the distance covered in a single running session and injury risk, specifically noting that an increase of more than 10% compared to the longest run in the prior 30 days significantly raised the risk of overuse injury. Importantly, the study challenges traditional weekly load metrics, such as the acute:chronic workload ratio (ACWR), concluding that they were not associated with increased injury rates and advocating for a new "single-session paradigm" for injury prevention. The text includes detailed methodology, results with hazard rate ratios, and a discussion of the study's implications for coaches and healthcare professionals.

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