NCT07406516

Brief 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.

Trial Health

63
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
37mo left

Started May 2026

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
not yet recruiting

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

Study Progress1%
May 2026May 2029

First Submitted

Initial submission to the registry

February 5, 2026

Completed
7 days until next milestone

First Posted

Study publicly available on registry

February 12, 2026

Completed
3 months until next milestone

Study Start

First participant enrolled

May 1, 2026

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2029

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2029

Last Updated

February 12, 2026

Status Verified

February 1, 2026

Enrollment Period

3 years

First QC Date

February 5, 2026

Last Update Submit

February 5, 2026

Conditions

Patellar TendinitisJumper's KneeMusculoskeletal InjuriesKnee Injuries

Keywords

patellar tendinopathyinjuryJumper's kneeBiomechanical variablesBiomechanical modelingMeasurement in an ecological environmentProfilingMarkerless technology

Outcome Measures

Primary Outcomes (20)

  • Variations of knee flexion angle at initial contact at 3 months (only for patients in the patellar tendinopathy group)

    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.

    Between the initial visit and the 3-month visit

  • Variations of knee flexion angle at initial contact at 6 months

    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.

    Between the 3-month visit and the 6-month visit

  • Variations of knee flexion angle at initial contact at 9 months (only for patients in the patellar tendinopathy group)

    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.

    Between the 6-month visit and the 9-month visit

  • Variations of knee flexion angle at initial contact at 12 months

    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.

    Between the 9-month visit and the 12-month visit

  • Variations of the maximum knee flexion angle at 3 months (only for patients in the patellar tendinopathy group)

    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.

    Between the initial visit and the 3-month visit

  • Variations of the maximum knee flexion angle at 6 months

    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.

    Between the 3-month visit and the 6-month visit

  • Variations of the maximum knee flexion angle at 9 months (only for patients in the patellar tendinopathy group)

    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.

    Between the 6-month visit and the 9-month visit

  • Variations of the maximum knee flexion angle at 12 months

    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.

    Between the 9-month visit and the 12-month visit

  • 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)

    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.

    Between the initial visit and the 3-month visit

  • Variations of the range of motion (ROM) of the knee between initial contact and maximum flexion angle at 6 months

    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.

    Between the 3-month visit and the 6-month visit

  • 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)

    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.

    Between the 6-month visit and the 9-month visit

  • Variations of the range of motion (ROM) of the knee between initial contact and maximum flexion angle at 12 months

    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.

    Between the 9-month visit and the 12-month visit

  • 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)

    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.

    Between the initial visit and the 3-month visit

  • Variations of the angle at the peak of the vertical ground reaction force (VGRF)at 6 months

    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.

    Between the 3-month visit and the 6-month visit

  • 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)

    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.

    Between the 6-month visit and the 9-month visit

  • Variations of the angle at the peak of the vertical ground reaction force (VGRF) at 12 months

    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.

    Between the 9-month visit and the 12-month visit

  • Comparison of variation between healthy group and patellar tendinopathy group of knee flexion angle at initial contact at 6 months

    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.

    Between the two 6-month visits of the two groups

  • Comparison between the healthy group and the patellar tendinopathy group of variation of the maximum knee flexion angle at 6 months

    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.

    Between the two 6-month visits of the two groups

  • 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

    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.

    Between the two 6-month visits of the two groups

  • 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

    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.

    Between the two 6-month visits of the two groups

Secondary Outcomes (16)

  • Variations of the angle of flexion of the trunk, hips, knees, and ankles at initial contact at 3 months (only for patients in the patellar tendinopathy group)

    Between the initial visit and the 3-month visit

  • Variations of the angle of flexion of the trunk, hips, knees, and ankles at initial contact at 6 months

    Between the 3-month visit and the 6-month visit

  • Variations of the angle of flexion of the trunk, hips, knees, and ankles at initial contact at 9 months (only for patients in the patellar tendinopathy group)

    Between the 6-month visit and the 9-month visit

  • Variations of the angle of flexion of the trunk, hips, knees, and ankles at initial contact at 12 months

    Between the 9-month visit and the 12-month visit

  • Variations of the maximum flexion angle of the trunk, hips, knees, and ankles upon landing at 3 months (only for patients in the patellar tendinopathy group)

    Between the initial visit and the 3-month visit

  • +11 more secondary outcomes

Study Arms (2)

patellar tendinopathy group

EXPERIMENTAL

Diagnostic Test: The intervention consists of a series of vertical jump tests captured using high-resolution cameras with markerless motion capture technology.

Diagnostic Test: The intervention consists of a series of vertical jump tests captured using high-resolution cameras with markerless motion capture technology.

healthy group

OTHER

Diagnostic Test: The intervention consists of a series of vertical jump tests captured using high-resolution cameras with markerless motion capture technology.

Diagnostic Test: 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

Interventions

The intervention consists of a series of vertical jump tests captured using high-resolution cameras with markerless motion capture technology.DIAGNOSTIC_TEST

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.

patellar tendinopathy group
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 monthsDIAGNOSTIC_TEST

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.

healthy group

Eligibility Criteria

Age18 Years - 45 Years
Sexmale(Gender-based eligibility)
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • 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)
  • 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)
  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Sports Medicine and Traumatology LAPEYRONIE Hospital - Montpellier University Hospital

Montpellier, France

Location

MeSH Terms

Conditions

Knee InjuriesWounds and Injuries

Condition Hierarchy (Ancestors)

Leg Injuries

Central Study Contacts

Benjamin BEN ZAKI

CONTACT

+336 66 09 13 43b-benzaki@chu-montpellier.fr

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 5, 2026

First Posted

February 12, 2026

Study Start

May 1, 2026

Primary Completion (Estimated)

May 1, 2029

Study Completion (Estimated)

May 1, 2029

Last Updated

February 12, 2026

Record last verified: 2026-02

Locations

FR(1)