One reason forefoot running is more efficient is because it requires less muscle energy to absorb impact. Impact forces and loading dissipate best and are consistently prevented from rising to dangerous levels when initial ground-contact is made on the balls of the foot (forefoot) during running. Its for this reason that habitual barefoot runners or runners who run in barefoot shoes, who typically land forefooted, are able to run safely, regardless of surface hardness, without generating greater impact and costly soft tissue movements and muscle tuning can be avoided altogether. Read more here!
