Aaron Shaffer

“Calf pain is not a rite of passage; it is mostly a wrong of technique. If you bend the knees more and learn to allow a heel touch after the ball-of-the-foot landing, you should not suffer much, if any, calf pain. Those who say, “Barefooters must suffer while strengthening their calves”—either through pain on the road or hitting the weight room—are wrong;”
― Ken Bob Saxton, Barefoot Running Step by Step: Barefoot Ken Bob, The Guru of Shoeless Running, Shares His Personal Technique