Description of Return to Sport in Amateur Athletes Who Underwent Several Functional Tests (K-STAR… (NCT07249645) | Clinical Trial Compass
Not Yet RecruitingNot Applicable
Description of Return to Sport in Amateur Athletes Who Underwent Several Functional Tests (K-STARTS, Vertical Jumps and Soleus Muscle Strength) After Initial ACL Reconstruction
230 participantsStarted 2025-12-01
Plain-language summary
ACL injuries are incapacitating for both professional and amateur athletes, with long-term repercussions on performance and return to sport (RTS).
Surgical reconstruction of the ACL is the main treatment option. Despite this, recurrence rates are high. Half of all recurrences occur within 8 months of reconstruction, and 70% within the first 6 months after RTS. Decision to RTS is therefore an important one, as returning too early can increase the risk of recurrence, while returning too late delays a return to pre-injury performance levels. As described by the Bern Consensus, RTS consists of three phases :
* Phase 1: Return to participation (RTp)
* Phase 2: Return to sport (RTS)
* Phase 3: Return to performance (RTP)
RTS decision must be based on multiple factors, including psychological, athletic and functional components, as well as specific nature of the patient's activities. However, few individual tests have been associated with a specific level of RTS. Furthermore, the majority of studies rely on subjective and non-objective assessments to determine whether the athlete has returned to their pre-injury level.
It would therefore be relevant to study the RTS time of patients who have performed a combination of several objective functional tests whose results could be complementary, in particular the K-STARTS, the CMJ, the DJ and the measurement of soleus muscle strength.
Who can participate
Age range
18 Years – 30 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Patient, male or female, aged between ≥ 18 and ≤ 30 years old
* Amateur athlete with a Tegner score ≥ 5
* Patient with primary ACL reconstruction dating back 6 months
* Patients with ACL damage in one knee only
* Patients who have undergone an isokinetic strength test with results that do not contraindicate functional testing
* Patients affiliated with or covered by a social security scheme
* French-speaking patients who have signed an informed consent form
Exclusion Criteria:
* Patients treated for bilateral ACL reconstruction
* Patients who are professional athletes or compete at a national level
* Patients with severe associated disorders (neurological, connective tissue, congenital diseases)
* Patients with multiple ligament defects or associated osteotomy
* Patients already included in another study
* Protected patients: adults under guardianship, curatorship or other legal protection, deprived of their liberty by judicial or administrative decision
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Return to sport
Timeframe: 18 months
Trial details
NCT IDNCT07249645
SponsorGCS Ramsay Santé pour l'Enseignement et la Recherche