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).
There are two main causes of shin splints. The first is the excess of impact to the lower legs, which is primarily created by heel striking. The second main cause is overuse of the lower legs while running. Overuse injuries primarily happen when you push off with your toes to propel yourself forward.