Rate of Force Development vs Isometric Strength of Quadriceps

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

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT04005274

Enrollment

Registered

2019-07-02

Start date

2019-03-08

Completion date

2019-04-08

Last updated

2019-07-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Post ACL Reconstruction

Brief summary

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.

Interventions

None listed

Study design

Observational model

CASE_ONLY

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

14 Years to No maximum

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

Design outcomes

Primary

Measure	Time frame	Description
Limb Symmetry (Noyes hop testing, Isokinetic testing-rate of force development, Isokinetic testing-quadriceps index)	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.

Countries

United States

Outcome results