’ll develop an appreciation for the demands on your hamstrings (which power you up) and quadriceps (which steady you down). Three muscles make up the hamstring, which runs down the back of the thigh, bends the knee and extends the leg at the hip
of the leg more than the front, runners often have overworked, tight calf muscles and weak shin muscles. This can lead to four specific lower-leg injuries – calf pulls, shin splints, stress fractures and compartment syndrome.A calf pull (also called a strain
