The Analysis of the Biomechanical Alterations Present During Running at Sportsmen Who Suffered from Knee Sprain

摘要

Introduction: In the field of sports traumatology, the knee strain represents one of the most frequent injuries, with particular implications in what the performances of the sportsmen are concerned, the inactivity period and the recovery process of these sportsmen. Purpose of the study: The aim of this study was the analysis of the biomechanical characteristics of the knee joint in sportsmen who experienced knee sprains, of I and II degree. The analysis of the recordings made during the study, indicated the occurrence of some modifications and therefore we could evaluate the efficiency of the kinetic programme the subjects underwent. Subjects and method: The study comprises a number of 18 sportsmen who experienced a knee sprain, of I and II degree, and who besides the speciality treatment, followed a recovery period consisting in individualised kinotherapy. The age group distribution was the following: 19-25 years-14 sportsmen, 26-30 years - 1 sportsman, 31-35 years - 3 sportsmen. Out of the 18 subjects, 13 were male and 5 female. The duration of the research study was 4 years. The cinematic analysis of the joints of the lower limb was made with the use of the CMS Zebris system. The biomechanical modifications found in the knee joint were monitored while running on a flat surface and on a rolling carpet, at the end of the recovery period. Results and interpretation of results: The analysis of the recordings made during the study, was done in order to investigate the running biomechanical characteristics. All the sportsmen who were recruited in this study were proved to have an associated laterality movement, caused by ligament laxity, secondary to knee sprain. Conclusions: The analysis of the gathered data proved the existence of some high values of ligament laxity in 6 sportsmen, with the following age distribution: 2 cases -21 years, 3 cases -30/35 years, 1 case -25 years.