At 6 months, which threshold predicts successful return to sport for the single leg hop for distance?

At 6 months, which threshold predicts successful return to sport for the single leg hop for distance?

• A. 80% of CL limb
• B. 88% of CL limb
• C. 90% of CL limb
• D. 85% of CL limb

Answer: (B)

The test relies on limb symmetry index from the single leg hop for distance to gauge readiness for return to sport after knee injury. You measure how far the injured leg hops compared to the non-involved leg, then express it as a percentage of the contralateral limb. At around six months, a threshold of about 88% has been found to best predict successful return because it reflects sufficient restoration of power, strength, and neuromuscular control in the affected leg without being unrealistically strict. If the injured leg achieves only around 80% of the contralateral limb, that indicates lingering weakness and a higher risk of re-injury, suggesting more rehab is needed. An 85% threshold is somewhat lenient, while 90% is stricter and may unnecessarily delay RTS for some athletes; 88% sits in a balance supported by evidence for this time point. Remember, RTS decisions are multifactorial: you’d also consider strength, ROM, movement quality, and psychological readiness, not this test alone.

The test relies on limb symmetry index from the single leg hop for distance to gauge readiness for return to sport after knee injury. You measure how far the injured leg hops compared to the non-involved leg, then express it as a percentage of the contralateral limb. At around six months, a threshold of about 88% has been found to best predict successful return because it reflects sufficient restoration of power, strength, and neuromuscular control in the affected leg without being unrealistically strict.

If the injured leg achieves only around 80% of the contralateral limb, that indicates lingering weakness and a higher risk of re-injury, suggesting more rehab is needed. An 85% threshold is somewhat lenient, while 90% is stricter and may unnecessarily delay RTS for some athletes; 88% sits in a balance supported by evidence for this time point. Remember, RTS decisions are multifactorial: you’d also consider strength, ROM, movement quality, and psychological readiness, not this test alone.