Experimental Ultrasound Approach for Studying Knee Intra-Articular Femur–Tibia Movements under Different Loads
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Published:2023-12-29
Issue:1
Volume:9
Page:8
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ISSN:2411-5142
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Container-title:Journal of Functional Morphology and Kinesiology
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language:en
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Short-container-title:JFMK
Author:
Ivanov Ivan12ORCID, Ranchev Sergey2, Stoychev Stoyan2
Affiliation:
1. National Sports Academy “Vassil Levski”, 1700 Sofia, Bulgaria 2. Institute of Mechanics, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
Abstract
The purpose of the present study was to develop an experimental model for the study of intra-articular knee movements depending on the function of the knee joint and involved muscle groups under isometric stretching conditions with different loads. The experimental procedure included an ultrasound examination of a knee joint after isometric stretching in healthy men (n = 32). The changes (in millimeters) in the distances between the femur and tibia were measured using an ultrasound sonographer at three stages. The first stage was performed on ten (n = 10) healthy men in five different sitting and upright positions. In the second and third experimental model stages, lower limbs loading was applied to 22 participants. Our hypothesis, which was confirmed, was that as a result of increased loads on the participant’s back, an intra-articular decrease in the femur–tibia cartilage surface distance would be observed. The accuracy of the created experimental model was improved over its three stages from 30% to 9%. Quantitative model data can help to create a mathematical model of the mechanical effects during the deformation of knee joint bone cartilage and it can also help outline some future tasks: increasing loading weights, enlarging participant groups, performing comparisons of men and women, and performing comparisons of healthy and pathological individuals.
Funder
Bulgarian National Science Fund
Subject
Physical Therapy, Sports Therapy and Rehabilitation,Orthopedics and Sports Medicine,Histology,Rheumatology,Anatomy
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