Psychological and Physiological Parameters for Return-to-sport After ACL Reconstruction

NCT ID: NCT07259083

Last Updated: 2025-12-02

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

Total Enrollment

30 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-04-16

Study Completion Date

2025-12-31

Brief Summary

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Injuries to the anterior cruciate ligament are common and are usually treated with reconstruction and subsequent rehabilitation. Many people succeed in return to sport (RTS), but not to the original level. Muscle strength factors can be assessed using isokinetic strength measurements, while the psychological readiness to return to sport can be assessed using the Anterior Cruciate Ligament-Return to Sport after Injury (ACL-RSI) questionnaire. In this study, isokinetic strength testing and psychological testing with the ACL-RSI questionnaire 1 to 4 years after ACL reconstruction will be assessed. The study will be conducted at the Institute of Physical Medicine \& Rehabilitation at the Kepler University Hospital. The Biodex System Pro™, a medical device for measuring and training muscle strength, will be used for the isokinetic measurements. The research question is as follows: Is there a correlation between the results of the ACL RSI questionnaire and the results of isokinetic strength testing on the Biodex System 4 Pro™ in test subjects following ACL reconstruction?

Detailed Description

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Conditions

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ACL Reconstruction

Study Design

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Observational Model Type

OTHER

Study Time Perspective

PROSPECTIVE

Study Groups

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Participants after ACL reconstruction

1 to 4 years after ACL reconstruction, age: 18 - 50 years, physically active

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Primary unilateral ACL reconstruction 1 to 4 years prior testing
* Physically active
* 18-50 years
* Medical approval for maximum loads

Exclusion Criteria

* Bilateral Knee injury
* Pregnancy
* Acute pain (VAS ≥ 3)
* Extremely limited mobility
* Extreme joint instability
* Acute injuries
* Inflammation
* Fever
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Salzburg

OTHER

Sponsor Role collaborator

Johannes Kepler University of Linz

OTHER

Sponsor Role lead

Responsible Party

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Christian Mittermaier

M.D.

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Kepler University Clinic, Dept. of Physical Medicine & Rehabilitation

Linz, , Austria

Site Status RECRUITING

Countries

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Austria

Central Contacts

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Christian Mittermaier, M.D.

Role: CONTACT

+43 (0)5 7680 83 - 6170

Facility Contacts

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Christian Mittermaier, M.D.

Role: primary

+43 5 7680 83 6170

Other Identifiers

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Kepler Universitätsklinikum /

Identifier Type: -

Identifier Source: org_study_id

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