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).
Rating Newest Oldest. Sprinting works quads, hamstrings, glutes and calves. They all need to be strong or balance each other because if one is weaker than the other then you could injure the weaker one due to the strain/pressure put on it by the stronger muscle.ating Newest Oldest. Sprinting works quads, hamstrings, glutes and calves. They all need to be strong or balance each other because if one is weaker than the other then you could injure the weaker one due to the strain/pressure put on it by the stronger muscle.