Benefits of Ballistic Tests After the Anterior Cruciate Ligament Surgery
Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorAlmaviva Sante
About this trial
During physical activities, the time available to produce a force is infinitely shorter than the time required to reach maximal muscle capacity.
Previous studies have observed that the time elapsed between ground contact and ACL rupture is on average 50-60 ms, suggesting that this is the time window available for any attempt at dynamic stabilization of the joint through muscle contraction.
Sports movements include ballistic movements, defined as very fast movements whose objective is to accelerate a moving mass as much as possible so that it reaches a high speed in a very short time. This is the case for vertical jumps, running and most movements performed in physical and sporting activities.
Thus; (1) isokinetic tests do not allow a rigorous analysis of the components related to the speed of the movement; (2) functional tests such as jumping, which only give a distance between one leg and the other, do not allow the calculation of precise and reproducible variables concerning the force and speed of the movement, in particular during the first milliseconds of the movement, and do not provide information on compensation phenomena. It is therefore interesting to use the ballistic tests developed to monitor the movements of athletes as a new possible indicator of the return to sport.
The main objective of this study is to evaluate the performance of ballistic tests in predicting failure to return to physical activity 24 months after ACL surgery.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Adult patient (> 18 years),
Isolated ACL sprain without injury to the collateral ligaments or the PCL,
ACL reconstruction without associated meniscal injury or with repaired or menisctomized meniscal injury,
Having to perform a K-STARTS test and an isokinetic test,
Disqualifiers
Patient with high cardio-respiratory risk,
Osteoarticular and neuromuscular traumatic sequelae of the lower limbs,
Degenerative neuromuscular diseases,
Connective Tissue and Collagen Disease (e.g. Marfan),
Trial design
Design model
Single group
Treatments tested in this trial
isokinetic test
Other interventionBilateral strength will be measured using a Contrex ® dynamometer equipped with an exercise table. Each subject will perform isokinetic tests of the right and left knee extensors and flexors. Subjects will be stabilized by straps during testing and the joint rotation axis will be aligned with the input shaft of the dynamometer.
Ballistic test
Other interventionballistic squat jumps performed in the supine position on a frictionless sled at a resistance between 0% of body weight (BW)
K-STARTS test
Other interventionThe K-STARTS (Knee Health Athletic Return To Sport) test brings together a set of 7 tests validated in the scientific literature to assess the control and neuromuscular capacities of the lower limb when performing dynamic movements as well as apprehension when resuming activity. Test in 30 minutes with physical exercises and questionnaire.
Questionnaires
Other interventionKOOS (Knee Injury and Osteoarthritis Outcome Score) Questionnaire
Treatment groups
140 Participants
are divided into 1 treatment groupGroup A: patient underwent ACL reconstructionExperimental treatment 4 interventions
Trial outcomes
Primary outcomes
1
Analysis of the kinetics of force waves produced at high speed during ballistic movement
Analysis of the kinetics of force waves produced at high speed during a ballistic movement will make it possible to determine the ability to resume physical activity at a level similar to that before the rupture in the absence of injury (risk = 2.3 / no risk = 0.1). Failure to resume physical activity 24 months after ACL surgery is defined by the occurrence of one of the following events: * Graft rupture, * Contralateral ACL rupture, * Decrease of at least 2 points in the Tegner 24 months after cruciate ligament surgery compared to the Tegner before the rupture
Time frame
24 MonthsSecondary outcomes
1
Return to physical activity via isokinetic test
Fitness to resume physical activity via isokinetic test will be determined by quadriceps torque values (\>3.0 Nm/kg) and an LSI\>90%.
Time frame
24 Months2
Return to physical activity via the K-STARTS test
Fitness to resume physical activity via the K-STARTS test will be determined by a total score ≥ 18 points and individual results of the tests comprising the K-START between 2 and 3.
Time frame
24 MonthsSponsors and contacts
Click on the lead sponsor to view all of their trials.
Source ClinicalTrials.gov
This trial is not recruiting at the moment. You can still explore other options: