Muscle Function Following Anterior Cruciate Ligament Reconstruction: Impaired Power Output in Physically Active Individuals
ReGAIN
1 other identifier
interventional
110
1 country
1
Brief Summary
The goal of this clinical trial is to to determine the extent of the association between objective changes in the muscle function of the knee extensors (strength and power) and the function reported by the patient following ACL reconstruction surgery. The main questions it aims to answer is: \- Pre- and post-operative (6 months) changes in maximum knee extensor strength following ACL reconstruction, correlated with the IKDC-SKF score.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Jun 2026
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 1, 2026
CompletedStudy Start
First participant enrolled
June 8, 2026
CompletedFirst Posted
Study publicly available on registry
August 14, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 8, 2030
ExpectedStudy Completion
Last participant's last visit for all outcomes
June 8, 2030
August 14, 2026
August 1, 2026
4 years
June 1, 2026
August 10, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Correlation of maximum knee extension strength to IKDC-SKF scores
Relationship (r coefficient) between 0-6 month delta of maximum knee extension strength measurements and International Knee Documentation Commitee-SKF scores (100: no limitation)
6 month
Secondary Outcomes (9)
Peri-operatory trajectory of maximal dynamic force
0, 3 and 6 month
Peri-operatory trajectory of maximal contraction velocity
0, 3 and 6 month
Peri-operatory trajectory of rate of force development
0, 3 and 6 month
Peri-operatory trajectory of maximal isometric force
0, 3 and 6 month
Peri-operatory trajectory of maximal dynamic force during cycling
0, 3 and 6 month
- +4 more secondary outcomes
Study Arms (1)
evaluated group
EXPERIMENTALassessment of knee function before and after cruciate ligament surgery
Interventions
* Assessment of force-velocity and power-velocity relationships in each leg during a cycling task * Assessment of unilateral force-velocity and power-velocity relationships during a knee extension task * Assessment of maximum force and explosive force in isometric (static) conditions of the knee extensors. * Measurement of scores using questionnaires (IKDC-SKF).
Eligibility Criteria
You may qualify if:
- Patients requiring isolated or complex ACL reconstruction (combined with a meniscal injury)
- Patients who are physically active (Tegner score ≥ 4) and wish to resume such activity.
- Patients with no history of surgery on the ipsilateral knee (i.e., native knee).
- Patients able to comply with the study procedures
- Patients who have given their free and informed written consent, having been informed of the purpose of the study, its procedure and its risks.
- Be affiliated to a social security scheme.
You may not qualify if:
- Patient with comprehension difficulties
- Recurrent rupture of the ipsilateral ACL
- Multi-ligament injuries (i.e., injury to the medial collateral ligament, lateral collateral ligament or posterior cruciate ligament)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Centre Hospitalier Metropole Savoielead
- Université Savoie Mont Blanccollaborator
Study Sites (1)
Médipôle de Savoie
Challes-les-Eaux, 73190, France
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- SUPPORTIVE CARE
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 1, 2026
First Posted
August 14, 2026
Study Start
June 8, 2026
Primary Completion (Estimated)
June 8, 2030
Study Completion (Estimated)
June 8, 2030
Last Updated
August 14, 2026
Record last verified: 2026-08
Data Sharing
- IPD Sharing
- Will not share