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).
Thatâs because of the pounding of running. So the heavier you are and the harder you run, the faster you will break down the shoe and the foam. Sprinting means youâll go through shoes faster, too. Another thing that plays into how long your shoes will last is your cadence and how your feet strike the ground.