To achieve more speed while using less effort and preventing injuries, there is one common fundamental error which most of the runners commit and that is overstriding. Overstriding is when as your heel makes contact with the ground, it is ahead of your knee, which is less advantageous and may add stress to the shin and knee joints. The cure for this involves focusing on particular running mechanics such as the running cadence and the stride length which includes sucking in your limbs higher off the ground to decrease the length of the swing leg lever making it easier for the hip flexors to pull the leg forward. It is this adjustment which enables one to appreciate landing his or her foot beneath a flexed knee, making the foot strike softer and allowing faster and more efficient running motion.