I actually did a research project on natural motion and learned a lot about foot strike...so feel free to message me with any questions you might have.
If you can, landing on your forefoot is optimal when running. When you land on your heel, you are effectively bringing your forward momentum to a stop and causing your joints to work harder to absorb the shock of your body weight. When landing on your forefoot in shoes that allow your foot to move naturally, your arches act as springs, propelling you into your next step and helping to absorb the shock.
The physics of the two footstrikes are also different. Landing on your heel directs the forces to your knee joint while landing on your forefoot directs them to your hip, which is a larger joint that is better equipped to handle the huge impact forces of running.
I'm in the barefoot/minimalist running camp and have found I tire less quickly and have less pain and soreness when running with a forefoot strike. My minimal running shoes encouraged the transition as their lack of padding made it painful if I was slamming my heels onto the concrete.
If you do decide to make a change, transition slowly and give your body time to adjust to your new running style.
from Los Angeles-ish(PST)
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Seattle Furry 5K - 6/11 - 32:09 (10:21)
Malibu Spartan Sprint Obstacle 5K - 12/12 - 1:32:49 (23:12)
| current weight: 138.0