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Jump distance asymmetry is the percent difference between the maximum jump distances produced from each leg. A consistent jump asymmetry for a particular leg is common, especially if you participate in a sport or activity that requires more usage of that same leg. The inverse of jump distance asymmetry (100-asymmetry) will yield a Leg Symmetry Index (LSI), which is commonly used for return to play decision making.
Limb symmetry with SLJ-D and self reported knee function - Limb symmetry (or conversely, asymmetry) in the single leg jump for distance predicted self-reported knee function scores a year later in patients who were nonoperatively treated for ACL injuries. Note that additional horizontal hop tests did not increase sensitivity of the prediction.