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.
There's a lot to be done on race morning including parking, packet pick-up, waiting in line for the restroom, warming up. Arrive at the race site 60 minutes prior to the startâknowing where you can park, what time packet pick-up closes (if you couldn't do it the day before) and where to go for the starting line.. Get your z's two nights before. Pre-race jitters tend to strike the night before the race, interrupting your sleep. When it comes to running for beginners or even experienced racers, trust that this is normal and will not influence your race.