- •Meta-analyses claim 50% injury risk reduction using the Nordic hamstring exercise.
- •By using more appropriate methodology, previous results could not be replicated.
- •The evidence underpinning the protective effect of Nordic hamstring exercise so far remains inconclusive.
- •According to The Grading of Recommendations Assessment, Development and Evaluation, Nordic hamstring exercise can be only conditionally recommended.
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Conflict of interest: none.
Financial support: none.
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Franco M. Impellizzeri contributed to the conceptualization, methodology, formal analysis, and writing the original draft; Alan McCall contributed to the investigation, and writing (Review & Editing), Maarten van Smeden contributed to the conceptualization, and writing (Review & Editing).