Jump Distance Asymmetry

 

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.

Grindem, Hege, Logerstedt, David, Eitzen, Ingrid, Moksnes, Håvard, Axe, Michael J, Snyder-Mackler, Lynn, Engebretsen, Lars, & Risberg, May Arna. (2011). Single-Legged Hop Tests as Predictors of Self-Reported Knee Function in Nonoperatively Treated Individuals With Anterior Cruciate Ligament Injury. The American Journal of Sports Medicine, 39(11), 2347–2354. https://doi.org/10.1177/0363546511417085

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Jump Distance (Average)