CompletedNot Applicable

Bilateral Lower Limb Biomechanics During Side-Cutting in Unilateral Patellar Tendinopathy

China60 participantsStarted 2023-07-15

Plain-language summary

Patellar tendinopathy (PT) is a common overuse injury in sports that involve jumping and directional changes. The biomechanical differences between individuals with PT and healthy controls during side-cutting, as well as whether both legs are similarly affected, remain unclear. This study aimed to compare the kinematics and kinetics of the affected leg in patients with PT, their unaffected leg, and healthy controls during side-cutting. Methods: Thirty patients with PT and thirty healthy participants performed a side-cutting task. Motion capture and force plates were used to collect data. Five peak ground reaction forces (GRFs) and the corresponding hip, knee, and ankle joint angles and moments were analyzed. Statistical comparisons were performed using t-tests with Bonferroni correction.

Who can participate

Age range

18 Years – 50 Years

Sex

ALL

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Inclusion criteria for the PT group were as follows: * Age 18-40 years and regular participation in sports, defined as engaging in physical activities for at least 90 minutes per week over the past three months, such as basketball, soccer, tennis, volleyball, long-distance running, and other sports activities, * Structural tendon changes on imaging, including tendon thickening, hypoechogenicity, and/or increased neovascularization on Doppler ultrasound, or increased signal intensity on T2-weighted Magnetic Resonance Imaging (MRI) sequences relative to normal tendon tissue, with observable localized edema, inflammation, or degenerative changes, * positive tenderness response upon palpation of the patellar tendon, * reproduction of patellar tendon pain during resisted knee extension and/or during a standardized single-leg squat test, * a score of ≤ 80 on the VISA-P (Victorian Institute of Sport Assessment-Patella) questionnaire. Inclusion criteria for the control group were as follows: * Participants were reported regular participation in sports, defined as engaging in physical activities for at least 90 minutes per week over the past three months, such as basketball, soccer, tennis, volleyball, long-distance running, and other sports activities, * no history of knee injury, * no history of lower-limb surgery, * normal range of motion of the lower-limb joints (hip, knee, and ankle joints with no limitations in active or passive movements, within the normal physiological rang…

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What they're measuring

Vicon 3D gait test

Timeframe: Day 1 (single time point)

Trial details

NCT IDNCT07463560

SponsorPeking University Third Hospital

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2025-05-30

View on ClinicalTrials.gov More Patellar Tendinopathy trials