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NCT03209531 · ClinicalTrials.gov registry record · NA

Conditioning Brain Responses to Improve Thigh Muscle Function After Anterior Cruciate Ligament Reconstruction

A NA study, sponsored by University of Michigan.

Completed
Registry status
NA
Development phase
11
Enrollment target

NCT03209531: Completed NA study, sponsored by University of Michigan.

NCT03209531 is a NA study that has completed, run by University of Michigan. The registered enrollment target is 11 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (99% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT03209531, a NA study, has completed, sponsored by University of Michigan.

COMPLETED
Registry status
NA
Development phase
11 participants
Enrollment target

Study Summary

The purpose of this study is to examine if thigh muscle weakness and the lack of muscle activation that accompanies ACL injury can be improved through a form of mental coaching and encouragement, known as operant conditioning.

Primary Outcome

Quadriceps strength will be measured using an isokinetic dynamometer. Improvements in quadriceps strength from baseline to the end of intervention will be assessed and compared between groups.

Interventions

  • BEHAVIORAL Control
  • BEHAVIORAL Operant Conditioning
  • DEVICE Single Pulse Transcranial Magnetic Stimulation

Trial Details

FieldValue
Enrollment Target 11 participants
Start Date 2017-09-21
Est. Completion 2025-11-24
Phase NA
University of Michigan

1,327 total trials

What the finished NCT03209531 record still lists

NCT03209531 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 11 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (99% lower).

The record links to 0 conditions, and to 3 interventions - of which Control is the first listed.

NCT03209531 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT03209531 about?

NCT03209531 is a clinical study titled "Conditioning Brain Responses to Improve Thigh Muscle Function After Anterior Cruciate Ligament Reconstruction". The purpose of this study is to examine if thigh muscle weakness and the lack of muscle activation that accompanies ACL injury can be improved through a form of mental coaching and encouragement, known as operant conditioning.

What is the current status of trial NCT03209531?

This trial is currently completed. It is a NA study. The enrollment target is 11 participants. The study started on 2017-09-21. Estimated completion is 2025-11-24.

What interventions are being tested in trial NCT03209531?

The interventions under investigation include: Control (BEHAVIORAL), Operant Conditioning (BEHAVIORAL), Single Pulse Transcranial Magnetic Stimulation (DEVICE).

Who is sponsoring clinical trial NCT03209531?

This trial is sponsored by University of Michigan, which has 1,327 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT03209531's enrollment target sits among peer trials

11 1927th of 2000 higher than 74 of 2,000 other NA trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT03209531, the US trial registry maintained by the National Library of Medicine. NCT03209531 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.