Running with a minimalist shoe increases plantar pressure in the forefoot region of healthy female runners runners

No surprises here, and the conclusion is the key point: "Running with a minimalist shoe increased plantar pressure without a change in landing pattern. This increased pressure in the forefoot region might play a role in the occurrence of metatarsal stress fractures in runners who switched to minimalist shoes and warrants a cautious approach to transitioning to minimalist shoe use."

Bergstra, S., Kluitenberg, B., Dekker, R., Bredeweg, S., Postema, K., Van den Heuvel, E., Hijmans, J., & Sobhani, S. (2014). Running with a minimalist shoe increases plantar pressure in the forefoot region of healthy female runners. Journal of Science and Medicine in Sport DOI: 10.1016/j.jsams.2014.06.007