In science, mechanical energy is the sum of potential energy and kinetic energy. It is the energy associated with the motion and position of an object.The law of conservation of mechanical energy states that in an isolated system that is only subject to conservative forces the mechanical energy is constant.n science, mechanical energy is the sum of potential energy and kinetic energy. It is the energy associated with the motion and position of an object.
As with the standing shin stretch, the cross-over stretch is well-suited for pre- and post-running stretching. You can perform this stretch with or without shoes. Start standing with your feet together. Cross your right leg in front of your left leg and place the tops of your pointed right toes on the ground.
Protect yourself by strengthening your feet, ankles, calves, and hips, which support your shins. Do two to three sets of 10 to 15 reps daily (but not before a run). Stand with feet hip-width apart at the edge of a towel. With the toes of your left foot, gather the towel and slowly pull it toward you.