Heel strike running is bad because multiple lines of research over the last few decades have proved the many verifiable aspects of heel strike running that are primarily responsible for nearly all running injuries vs forefoot running.
Body Can’t Absorb Impact in Heel Strike Running
Another suggestion as to why heel strike runners are more likely to injure as compared with runners who use a forefoot strike, is that the human body does not have the anatomy or the physiology to fully absorb impact during the touchdown phase, also known as the impact phase of heel strike running.
