But.... New research shows that for some injury prevention, a "forefoot" strike is beneficial. When people run without wearing shoes, they usually land with the forefoot and this leads researches to believe that's best..... so they tested it out a little further.
- Knees, ankles, and the Achilles' tendon are the sites of most running injuries and when force was analyzed with female athletes during running, they found greater force (especially with the knees -- 16% more force produced!) with heel landings
- However.... striking with the ball of the foot could lead to tendonitis, plantar fasciitis, or a stress fracture
So..... if you're not in pain, best not to switch your techniques. If you can, have a coach or trainer watch you run and observe your technique. Then, if you are having pain, see how best to alter to shift the pressure and force on the joints.