Single Leg Hop Test

Single Leg Hop tests are often used as return to function/sport criteria. Dr. Nicole Surdyka breaks it down in this informative instagram post.

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A single leg hop test is often used in the return to sport testing criteria. Here, we are looking for the distance hopped on the injured leg vs the distance hopped on the uninjured leg, as well as the quality of your movement. ——— Patients 3-5 months post ACLR tend to shift from inter-limb compensations to intra-limb compensations that cannot always be seen clinically. This means that instead of putting more load through the nonsurgical side as is typical early after ACLR, they will now load the hip and ankle on the surgical side and avoid loading the surgical knee. ——— Patients with an ACLR may also show decreased performance on both legs in a hop test. So even if they achieve >90% LSI on hop tests, it doesn’t necessarily mean they are ready to return to sport. ——— This doesn’t mean hop tests are useless however. I still like to use them to assess quality of movement and see if there is any fear avoidance or hesitance with hopping on either side. The results should not be taken in isolation, however, as a means to clear an athlete to return to sport. ——— As of now, quad strength LSI is still the best indicator of secondary ACL injury risk. So at the very least, quad strength needs to be assessed! Single leg hop tests simply give us more information.
A post shared by Nicole Surdyka PT, DPT, CSCS (@dr.nicolept) on


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