Rate of Force Development vs Isometric Strength of Quadriceps

Completed

Conditions studied: Post ACL Reconstruction

In brief

Peak isometric strength of quadriceps (QI) has been used to help determine an athletes ability to safely return back to sport following an anterior cruciate ligament (ACL) reconstruction surgery. However, rate of force development (RFD) of the quadriceps, or how fast the quadriceps are able to reach their peak strength, is rarely used as part of this decision despite the role it plays in protecting the knee. This retrospective data only study will look back at the limb symmetry index (LSI) of patients post ACL reconstruction for the Noyes Hop Test, QI, and RFD. The hypothesis is that RFD does not recover at the same rate as Noyes Hop Test and QI.

Key facts

Study ID

NCT04005274

Run by

Kaiser Permanente

People needed

19

Starts

2019-03-08

Expected to finish

2019-04-08

Last updated by the study team

2019-07-02

Who can join

Age: 14 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• No pain (at baseline) or edema/effusion
• Full knee range of motion
• Post Op: 20 weeks - 2 years
• Non antalgic gait

You may not qualify if…

• History of low back pain or other lower extremity injury within 1 year, skeletal immature, pregnant, concomitant ligament injury

Where it is running

• Kaiser Permanente West Los Angeles Medical Center — West Los Angeles, California, United States

Full record on ClinicalTrials.gov

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