The intervention consists of a series of vertical jump tests captured using high-resolution cameras with markerless motion capture technology.The intervention consists of a series of vertical jump tests captured using high-resolution cameras with markerless motion capture technology at 6 months and 12 months
The intervention consists of a series of vertical jump tests captured using high-resolution cameras with markerless motion capture technology.: Participants will undergo clinical evaluations including the Single Leg Decline Squat (SLDS) test, VISA-PF, OSTRC-P questionnaires, and Doppler ultrasound of the patellar tendon. These assessments will take place at baseline (T0) and follow-up periods (M3, M6, M9, M12) to track the evolution of kinematic markers and clinical symptoms related to patellar tendinopathy.
The intervention consists of a series of vertical jump tests captured using high-resolution cameras with markerless motion capture technology at 6 months and 12 months: Participants will undergo clinical evaluations including the Single Leg Decline Squat (SLDS) test, VISA-PF, OSTRC-P questionnaires, and Doppler ultrasound of the patellar tendon. These assessments will take place at baseline (T0) and follow-up periods ( M6 et M12) to track the evolution of kinematic markers and clinical symptoms related to patellar tendinopathy.
Study summary
This research aims to identify and monitor specific kinematic markers associated with patellar tendinopathy in athletes at risk. Using a markerless motion capture system, vertical jump tests will be analyzed to detect early biomechanical changes in the knees, hips, trunk, and ankles. By comparing injured participants, the study seeks to improve early diagnosis and personalized prevention strategies for patellar tendinopathy.
Eligibility
Sex
MALE
Min age
18 Years
Max age
45 Years
Healthy volunteers
Accepted
* Subject aged between 18 and 45 years
* Male subject
* Regularly participating in physical activity involving jumping (a predisposing factor for patellar tendinopathy) twice a week for at least one year.
* Participants affiliated with or covered by a social security scheme
SPECIFIC INCLUSION CRITERIA FOR THE PATELLAR TENDINOPATHY GROUP
Patients with at least 2 of the following 3 criteria:
* Modified Öhberg score ≥2 according to L Öhberg, H Alfredson (2002)
* VISA-PF \< 80/100 according to Kaux et al. (2016) and/or OSTRC P ≥ 6/100 according to Owoeye et al. (2018)
* Single Leg Decline Squat (SLDS): VAS ≥ 1/10 with pain mapping at the patellar tendon; according to Coombes et al. (2020)
SPECIFIC INCLUSION CRITERIA FOR THE HEALTHY GROUP
Patients with 0 or 1 of the following 3 criteria:
* Modified Öhberg score ≥2 according to L Öhberg, H Alfredson (2002)
* VISA-PF \< 80/100 according to Kaux et al. (2016) and/or OSTRC P ≥ 6/100 according to Owoeye et al. (2018)
* Single Leg Decline Squat (SLDS): VAS ≥ 1/10 with pain mapping at the patellar tendon; according to Coombes et al. (2020)
Non inclusion Criteria:
* Significant medical and surgical history involving the lower limbs (e.g., ACL ligament reconstruction, meniscectomy, etc.)
* Contraindications to participating in sports activities
* Other pathologies involving the lower limbs (\< 6 months), e.g., torn knee ligaments, ankle sprain, knee sprain, etc.
* Participants who have not given their informed consent
* Participants subject to legal protection measures (legal guardianship, conservatorship, curatorship)
* Participants deprived of their liberty by judicial or administrative decision
Primary outcome measure(s)
Variations of knee flexion angle at initial contact at 3 months (only for patients in the patellar tendinopathy group) — Between the initial visit and the 3-month visit The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Variations of knee flexion angle at initial contact at 6 months — Between the 3-month visit and the 6-month visit The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Variations of knee flexion angle at initial contact at 9 months (only for patients in the patellar tendinopathy group) — Between the 6-month visit and the 9-month visit The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Variations of knee flexion angle at initial contact at 12 months — Between the 9-month visit and the 12-month visit The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Variations of the maximum knee flexion angle at 3 months (only for patients in the patellar tendinopathy group) — Between the initial visit and the 3-month visit The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Variations of the maximum knee flexion angle at 6 months — Between the 3-month visit and the 6-month visit The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Variations of the maximum knee flexion angle at 9 months (only for patients in the patellar tendinopathy group) — Between the 6-month visit and the 9-month visit The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Variations of the maximum knee flexion angle at 12 months — Between the 9-month visit and the 12-month visit The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Variations of the range of motion (ROM) of the knee between initial contact and maximum flexion angle at 3 months (only for patients in the patellar tendinopathy group) — Between the initial visit and the 3-month visit The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Variations of the range of motion (ROM) of the knee between initial contact and maximum flexion angle at 6 months — Between the 3-month visit and the 6-month visit The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Variations of the range of motion (ROM) of the knee between initial contact and maximum flexion angle at 9 months (only for patients in the patellar tendinopathy group) — Between the 6-month visit and the 9-month visit The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Variations of the range of motion (ROM) of the knee between initial contact and maximum flexion angle at 12 months — Between the 9-month visit and the 12-month visit The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Variations of the angle at the peak of the vertical ground reaction force (VGRF) at 3 months (only for patients in the patellar tendinopathy group) — Between the initial visit and the 3-month visit The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Variations of the angle at the peak of the vertical ground reaction force (VGRF)at 6 months — Between the 3-month visit and the 6-month visit The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Variations of the angle at the peak of the vertical ground reaction force (VGRF) at 9 months (only for patients in the patellar tendinopathy group) — Between the 6-month visit and the 9-month visit The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Variations of the angle at the peak of the vertical ground reaction force (VGRF) at 12 months — Between the 9-month visit and the 12-month visit The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Comparison of variation between healthy group and patellar tendinopathy group of knee flexion angle at initial contact at 6 months — Between the two 6-month visits of the two groups The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Comparison between the healthy group and the patellar tendinopathy group of variation of the maximum knee flexion angle at 6 months — Between the two 6-month visits of the two groups The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Comparison between the healthy group and the patellar tendinopathy group of variations of the range of motion (ROM) of the knee between initial contact and maximum flexion angle at 6 months — Between the two 6-month visits of the two groups The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Comparison between the healthy group and the patellar tendinopathy group of variations of the angle at the peak of the vertical ground reaction force (VGRF)at 6 months — Between the two 6-month visits of the two groups The participant will perform the required vertical jump tests. The kinematic data will be captured by the investigating physical therapist specializing in motion analysis using a camera and markerless technology.
Trial sites (1)
Facility
City
Region
Status
Sports Medicine and Traumatology LAPEYRONIE Hospital - Montpellier University Hospital
Montpellier
France
Recruiting
More University Hospital, Montpellier trials in France
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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