Mental Imagery to Improve Quadriceps Strength Post Anterior Cruciate Ligament Reconstruction: a Feasibility Study

NCT ID: NCT06858293

Last Updated: 2025-03-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-02-14

Study Completion Date

2026-01-28

Brief Summary

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The goal of this clinical trial is to understand if people recovering from anterior cruciate ligament reconstruction (ACLR) surgery will complete mental imagery training and if this will improve their injured leg's strength. The main questions are:

* Will people complete a five-day mental imagery exercise schedule while in physical therapy for ACLR?
* Does mental imagery exercise help raise leg strength during ACLR recovery? Researchers will also compare if different mental imagery exercises involving leg extension or squats will change leg strength.

Participants will be asked to:

* Participate in two testing sessions to make measurements of leg function
* Complete about 10 minutes of mental imagery exercises once per day for five days at home and write down whether they complete the exercises.

Detailed Description

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Conditions

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Anterior Cruciate Ligament Reconstruction

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Mental Imagery Open Chain

Participants will receive a paper packet with instructions to imagine themselves performing seated maximal leg extension exercises. They will be instructed to imagine the feeling of the exercise for 5 seconds, rest for 5 seconds, and repeat this 50 times with a 2-minute rest period after the 25th repetition. They will also be asked to keep track of the exercises with tallies on a table within the packet and also to record on this table if they did not complete the exercises for that day. The participant is asked to perform the exercises on five consecutive days.

Group Type EXPERIMENTAL

Mental Imagery Open Chain

Intervention Type BEHAVIORAL

Participants will receive a paper packet with instructions to imagine themselves performing seated maximal leg extension exercises. They will be instructed to imagine the feeling of the exercise for 5 seconds, rest for 5 seconds, and repeat this 50 times with a 2-minute rest period after the 25th repetition. They will also be asked to keep track of the exercises with tallies on a table within the packet and also to record on this table if they did not complete the exercises for that day. The participant is asked to perform the exercises on five consecutive days.

Mental Imagery Closed Chain

Participants will receive a paper packet with instructions to imagine themselves performing maximal standing squat exercises. They will be instructed to imagine the feeling of the exercise for 5 seconds, rest for 5 seconds, and repeat this 50 times with a 2-minute rest period after the 25th repetition. They will also be asked to keep track of the exercises with tallies on a table within the packet and also to record on this table if they did not complete the exercises for that day. The participant is asked to perform the exercises on five consecutive days.

Group Type EXPERIMENTAL

Mental Imagery Closed Chain

Intervention Type BEHAVIORAL

Participants will receive a paper packet with instructions to imagine themselves performing maximal standing squat exercises. They will be instructed to imagine the feeling of the exercise for 5 seconds, rest for 5 seconds, and repeat this 50 times with a 2-minute rest period after the 25th repetition. They will also be asked to keep track of the exercises with tallies on a table within the packet and also to record on this table if they did not complete the exercises for that day. The participant is asked to perform the exercises on five consecutive days.

Interventions

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Mental Imagery Open Chain

Participants will receive a paper packet with instructions to imagine themselves performing seated maximal leg extension exercises. They will be instructed to imagine the feeling of the exercise for 5 seconds, rest for 5 seconds, and repeat this 50 times with a 2-minute rest period after the 25th repetition. They will also be asked to keep track of the exercises with tallies on a table within the packet and also to record on this table if they did not complete the exercises for that day. The participant is asked to perform the exercises on five consecutive days.

Intervention Type BEHAVIORAL

Mental Imagery Closed Chain

Participants will receive a paper packet with instructions to imagine themselves performing maximal standing squat exercises. They will be instructed to imagine the feeling of the exercise for 5 seconds, rest for 5 seconds, and repeat this 50 times with a 2-minute rest period after the 25th repetition. They will also be asked to keep track of the exercises with tallies on a table within the packet and also to record on this table if they did not complete the exercises for that day. The participant is asked to perform the exercises on five consecutive days.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* post anterior cruciate ligament reconstruction (ACLR) surgery
* cleared to participate in physical therapy
* currently in physical therapy related to ACLR

Exclusion Criteria

* greater than 9 months post ACLR surgery
* history of lower back of hip pain that would limit lower limb motor testing
* current neurological condition that limits muscle strength
* history of substance abuse in the last 5 years
* any uncontrolled medical condition
* inability to follow 2-step commands
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Marquette University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Marquette University

Milwaukee, Wisconsin, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Allison S Hyngstrom, PT, Ph.D.

Role: CONTACT

4142884566

Other Identifiers

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HR-4875

Identifier Type: -

Identifier Source: org_study_id

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