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).
See Achilles Tendonitis and Tendon Injuries. Running and jumping can trigger Achilles tendon injuries. The Achilles tendon withstands stress from daily activity; running and jumping increase this burden. 1 Running, for example, can add up to 12.5 times a personâs body weight to the tendon. 2