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.
Can You Run Safely with a Heel Strike? NO!
More studies show that there’s no way to heel strike safely when running. Manipulating other stride parameters, wearing shoes with more cushioning and strengthening your core was found to do nothing to reduce the damaging impact and other physical stressors accompanied by landing heel-first when running.
