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regulates · 2
→Bone
The impact of each landing loads the bones, and bone remodels along those loads and grows stronger. But the impacts add up, and if they outpace the bone's repair, cumulative injuries such as stress fractures can follow. When van Gent 2007 pooled leg injuries in distance runners, the risk factors with the strongest evidence were a long weekly distance in men and a previous injury.
The evidence that changing your running form or shoes prevents injury is weak. For a beginner, injury prevention rests on building up volume gradually and adding strength training, which gives tendons and bone time to adapt; putting all your attention on shoes crowds out what matters more.