Running is NOT bad for your knees if you land with a forefoot strike, but if you land with a heel strike, you will eventually struggle with knee injury due to the excessively high compressive forces that naturally accompanies landing heel-first when running. Here’s more on how foot strike pattern as well as certain kinds of running shoes can make or break your knees:
Minimalist and Barefoot Running Are Better for Your Knees
Minimalist running shoes and running barefoot delivers a natural stimulus for enhanced neuromuscular and reflexive responses in the knee-joint that result in a faster acquisition of more functional mechanics that are not only safer on the knees, but reduces energy costs!