Energy balance also has to do with whatâs going on in your cells. When youâre in a positive energy balance (more in than out) and when youâre in a negative energy balance (more out than in), everything from your metabolism, to your hormonal balance, to your mood is impacted.
Muscle injuries are very common in both professional and recreational athletes. They typically occur in muscles that cross two joints, during explosive activities such as sprinting, and when the athlete is suddenly increasing their exercise regimen (i.e., training camp).
Sprinting uses the same muscles as running, but requires that they are considerably more limber for short bursts of speed while avoiding injury. Running is powered by the legs, hips and glutes, so training the same muscles with a focus on speed will prepare you for sprinting.While training, avoid raising on the toes or pumping too high with the arms. Allow the primary muscles used for running to provide the power to sprint.hese muscles are vital to sprinting more than regular running, because the muscles of the calves control foot flexion when running. Sprinters should be prepared to spring off the next foot during each stride before impact to minimize time on the ground. Strong, elastic calves support the additional speed of a sprint.