The Role of Muscle in Knee Stability
The Role of Quadriceps and Hamstring Muscles in Knee Stability During Single Leg Hop Landing in Patients With Anterior Cruciate Ligament Reconstruction
1 other identifier
observational
30
1 country
1
Brief Summary
This project aims to compare the difference in muscle strength, muscle elasticity and muscle coordination of quadriceps and hamstring muscle and their association with knee biomechanics during single leg hop landing in patients with anterior cruciate ligament reconstruction.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for all trials
Started Aug 2019
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
August 1, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 31, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
January 31, 2020
CompletedFirst Submitted
Initial submission to the registry
November 11, 2020
CompletedFirst Posted
Study publicly available on registry
November 18, 2020
CompletedNovember 18, 2020
November 1, 2020
1 month
November 11, 2020
November 11, 2020
Conditions
Keywords
Outcome Measures
Primary Outcomes (4)
knee biomechanics during single leg hop landing
knee kinematics(peak knee flexion, knee valgus, knee internal rotation, knee flexion excursion, valgus excursion and internal excursion) and kinetics(vertical ground reaction force, knee extension moment, knee valgus moment) were collected by 3D motion analysis system(VICON) during the landing phase of single leg hop test
post-operatively 6-18 months
muscle strength
muscle peak torque of knee extension and knee flexion at 60°/s and 180°/s tested with isokinetic mode by Biodex
post-operatively 6-18 months
muscle elasticity
muscle shear elastic modulus of vastus medialis, rectus femoris, vastus lateralis, semimembranosus,semitendinosus and biceps femoris was measured by ultrasound shear wave elastography
post-operatively 6-18 months
muscle coordination
muscle activity level and onset time of vastus medialis, vastus lateralis, semimembranosus,and biceps femoris was assessed by electromyography(EMG) during the landing phase of single leg hop test
post-operatively 6-18 months
Secondary Outcomes (3)
knee laxity
post-operatively 6-18 months
subjective knee function
post-operatively 6-18 months
Psychological readiness for return-to-play
post-operatively 6-18 months
Eligibility Criteria
Young and active ACL patients within their post-ACLR 6-18 months
You may qualify if:
- (1) Male aged 18-35 (2) With pre-injury activity level of more than 6 in Tegner score (3) Within their post-operative 6-18 months (4) Without injury history for the contralateral limb
You may not qualify if:
- (1) With concomitant fracture, meniscus injury or chondral lesion (2) With preoperative radiographic signs of arthritis (3) With revision ACL surgery (4) With injury history of the spine or hamstring strain during the past 6 months.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
The chinese University of Hong Kong
Hong Kong, Hong Kong
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- CROSS SECTIONAL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- PhD candidate
Study Record Dates
First Submitted
November 11, 2020
First Posted
November 18, 2020
Study Start
August 1, 2019
Primary Completion
August 31, 2019
Study Completion
January 31, 2020
Last Updated
November 18, 2020
Record last verified: 2020-11