Prediction of Knee Injuries Through System Dynamics Modeling
1 other identifier
observational
99
1 country
1
Brief Summary
The large number of studies in the recent decade dealing with knee injury prevention seems not effective enough to cause a decline in knee injury rates. Thus, it has been proposed to use non-linear mathematical models that simulate the operation of complex and dynamic systems. The present study aims to analyze the dynamic relationships of the risk factors for knee injuries through system dynamics modeling to effectively predict and prevent knee injury. The first part of this project includes a qualitative study informing the theoretical non-linear interrelationships among the risk factors. The aim is to examine the initial hypothetical model formulated in the first part of the project through statistical analysis such as factor analysis and structural equation modeling. Pre-season and in-season data from questionnaires and biomechanical measurements for risk factors will be collected from at least 100 athletes who participate in high-risk sports. The athletes will be monitored for injuries during one season, and these data will be used in the next part of the research plan. The next part of the project aims to develop a dynamic simulation model for predicting knee injuries using specific equations. The function of the simulation model will predict the propensity of knee injuries over time. The next step includes the validation and calibration of the model based on the knee injuries that occurred during the season. The validated and calibrated model will then provide implications for effective policy decisions in knee injury prevention.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Jul 2022
Typical duration 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
First Submitted
Initial submission to the registry
June 15, 2022
CompletedFirst Posted
Study publicly available on registry
June 24, 2022
CompletedStudy Start
First participant enrolled
July 22, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 22, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2024
CompletedDecember 20, 2023
December 1, 2023
10 months
June 15, 2022
December 19, 2023
Conditions
Outcome Measures
Primary Outcomes (11)
Score in landing error scoring system test
The landing technique of the athletes will be assessed using the test landing error scoring system. The LESS assesses the quality of movement during landing based on a 19-point continuous scale. A maximum score of 19 can be reached; the lower the score, the better the landing technique.
Baseline test
BMI (kg/m^2)
Baseline test
Leg length (cm)
Baseline test
Tibia length (cm)
Baseline test
Demographic, history of injury, and activity level
Using questionnaires data will be collected regarding the age, level of competition, details of previous injuries, playing position, training volume
Baseline test
Passive range of motion with Goniometer
It will be assessed the range of motion for the following movements: Hip external/internal rotation, knee hyperextension, and ankle dorsiflexion
Baseline test
Core muscle endurance
It will be measured the time in seconds until exhaustion to maintain the position in the following tests: side bridge test, prone bridge test, extensor endurance test
Baseline test
Muscle strength
Muscle strength examination with hand held dynamometer for the following muscles: quadriceps, hamstrings and hip abductors
Baseline test
Balance
Assessment of the balance with the pressure platform during the task of single leg drop jump
Baseline test
Muscle activation
Assessment of quadriceps and hamstrings muscle activation with surface electromyography in the single leg hop for distance
Baseline test
Incidence of knee injuries
Collection data through questionnaire for knee injuries of the athletes during the season that cause at least one-day time loss from game or training
1 year
Secondary Outcomes (1)
Incidence of other lower extremity injuries
1 year
Eligibility Criteria
100 healthy athletes (17-40 years old) that participate in sports that include activities such as jumping, slowing down, and change of direction by pivoting such as football, basketball, and handball
You may qualify if:
- Healthy professional athletes that participate in team sports (football, handball, basketball)
You may not qualify if:
- Injured athletes
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Patras
Aigio, 25100, Greece
Related Publications (3)
Fonseca ST, Souza TR, Verhagen E, van Emmerik R, Bittencourt NFN, Mendonca LDM, Andrade AGP, Resende RA, Ocarino JM. Sports Injury Forecasting and Complexity: A Synergetic Approach. Sports Med. 2020 Oct;50(10):1757-1770. doi: 10.1007/s40279-020-01326-4.
PMID: 32757162BACKGROUNDBittencourt NFN, Meeuwisse WH, Mendonca LD, Nettel-Aguirre A, Ocarino JM, Fonseca ST. Complex systems approach for sports injuries: moving from risk factor identification to injury pattern recognition-narrative review and new concept. Br J Sports Med. 2016 Nov;50(21):1309-1314. doi: 10.1136/bjsports-2015-095850. Epub 2016 Jul 21.
PMID: 27445362BACKGROUNDHulme A, Thompson J, Nielsen RO, Read GJM, Salmon PM. Towards a complex systems approach in sports injury research: simulating running-related injury development with agent-based modelling. Br J Sports Med. 2019 May;53(9):560-569. doi: 10.1136/bjsports-2017-098871. Epub 2018 Jun 18.
PMID: 29915127BACKGROUND
Study Officials
- STUDY DIRECTOR
Sofia A. Xergia
University of Patras
- STUDY DIRECTOR
Elias Tsepis
University of Patras
- STUDY DIRECTOR
Konstantinos Fousekis
University of Patras
- PRINCIPAL INVESTIGATOR
Charis Tsarbou
University of Patras
- STUDY DIRECTOR
George Papageorgiou
European University Cyprus
- PRINCIPAL INVESTIGATOR
Nikolaos I. Liveris
University of Patras
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
June 15, 2022
First Posted
June 24, 2022
Study Start
July 22, 2022
Primary Completion
May 22, 2023
Study Completion
December 31, 2024
Last Updated
December 20, 2023
Record last verified: 2023-12