What is the ten per cent rule primarily concerned with?

The ten per cent rule is primarily concerned with improving physical fitness while reducing injury risk. This guideline suggests that individuals should only increase their exercise duration or intensity by no more than ten percent each week. This gradual progression helps the body to adapt to increased demands without overloading it, which can lead to injuries such as strains or sprains. By adhering to this principle, individuals can safely enhance their fitness levels while minimizing the risk of setbacks associated with sudden increases in exercise volume or intensity.