Asymmetries are a risk factor for many injuries, both muscle and ligamentous. This risk factor is based on the excessive difference in strength between the two upper extremities (between the two arms) or lower extremities (between the two legs). This difference is established as harmful if it exceeds 10-15%, however, there is a lot of controversy with this percentage. To give an example of this risk factor, the most powerful leg may generate a very large force that must be absorbed. The dominant leg will be able to absorb this force, however, the non-dominant leg, if it has a very large difference in strength with the other, will not be able to absorb these forces, an aspect that will increase the risk of suffering an injury. joint, ligamentous, muscular or bone. An asymmetry can occur due to the specific demands of each sport and training (tennis players who basically play with one limb/arm), due to the position of a player (full backs in soccer, most of the time they use the same leg ), and without forgetting the most important one, due to a previous injury to an extremity (very frequently an ACL, fractures, sprains…)
That said, we emphasize the importance we always give to injury prevention. For us it is important to detect these asymmetries and work to reduce them. If you avoid one injury, you are preventing the risk factors for many others from increasing.
