DiscoverRun Long Run HealthyThe new 10% rule: the #1 predictor of running injury risk
The new 10% rule: the #1 predictor of running injury risk

The new 10% rule: the #1 predictor of running injury risk

Update: 2025-10-03
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The study:
How much running is too much? Identifying high-risk running sessions in a 5200-person cohort study 

https://bjsm.bmj.com/content/59/17/1203


Brady’s newsletter breaking it down…

https://runlongrunhealthy.substack.com/p/run-long-run-healthy-how-much-running


00:00 Intro - The “How Much Running Is Too Much Study?”

01:15 Critiquing the classic 10% rule of running

02:21 The New Study, explained

03:30 Single Session Spike method

04:13 The Findings

04:51 The “single session paradigm”

05:07 Time to ditch the classic 10% rule?

05:58 Why the data doesn’t support the classic 10% rule

07:14 Our takeaways from the new study

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The new 10% rule: the #1 predictor of running injury risk

The new 10% rule: the #1 predictor of running injury risk

Run Long Run Healthy