Why don’t you measure right vs. left limbs?

Studies that examine the effects of inter-limb asymmetry on measures of physical performance are scarce, but research has shown that they tend to be task-specific. There isn’t always agreement depending upon the assessment or task at hand. For example, a recent paper states that “asymmetries vary across commonly used strength and jumping-based tests, and that the same side is also rarely favored.” This means that the right leg can be dominant in a squat, and the left leg dominant in a jump. Other studies have found that even multiple similar dynamic tests don’t always agree. The agreement is questionable in our in-house research as well. Defining and measuring asymmetry, while seemingly simple on the surface, is much more complex in practice. We address unilateral balance and global stability issues using tests that have shown to be much more reliable—and those metrics help create individual baseline scores and guides for Return to Play programming.