Rate of Force Development vs Isometric Strength of Quadriceps

July 1, 2019 updated by: Kaiser Permanente

Is Rate of Force Development (RFD) Superior to Isometric Strength (QS) of the Quadriceps as a Predictor of Functional Performance After Anterior Cruciate Ligament Reconstruction

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.

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment (Actual)

19

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • West Los Angeles, California, United States, 90034
        • Kaiser Permanente West Los Angeles Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

14 years and older (ADULT, OLDER_ADULT, CHILD)

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Kaiser Permanente patients attending out-patient physical therapy post ACL reconstruction.

Description

Inclusion Criteria:

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

Exclusion Criteria:

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Limb Symmetry (Noyes hop testing, Isokinetic testing-rate of force development, Isokinetic testing-quadriceps index)
Time Frame: March - June 2019
Limb symmetry was calculated comparing surgical leg over non-surgical leg giving a percentage. A percentage will be calculated for each one of the 3 observations allowing easy comparison with same unit of measure.
March - June 2019

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Kaiser Permanente

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

March 8, 2019

Primary Completion (ACTUAL)

April 8, 2019

Study Completion (ACTUAL)

April 8, 2019

Study Registration Dates

First Submitted

June 20, 2019

First Submitted That Met QC Criteria

July 1, 2019

First Posted (ACTUAL)

July 2, 2019

Study Record Updates

Last Update Posted (ACTUAL)

July 2, 2019

Last Update Submitted That Met QC Criteria

July 1, 2019

Last Verified

July 1, 2019

More Information

Terms related to this study

Other Study ID Numbers

  • KPSC IRB 12068

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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