Hamstring Strength Risk Factors and the Limits of Injury Prediction

The part opens with Kahneman's fast and slow thinking and the idea that what you see is all there is, then sets out why teams screen at all. UEFA data show hamstring injuries still rising by about 4% per year, and the van Mechelen injury prevention model frames the search for risk factors. The speaker presents a PhD project with Ghent University that tested strength at low and high speeds and, later, Nordic strength. Across more than 190 injuries, only a few of many strength variables were associated with injury: lower quadriceps strength, lower eccentric hamstring strength and, in the categorized analysis, higher quadriceps strength. The injured and uninjured groups overlap almost completely, so no cutoff separates them. Using a weather forecast analogy, the speaker argues that association studies explain why injuries happen but do not predict them, and that real prediction would need large international injury registries.