Effectiveness of closed and open kinetic chain exercises in correcting strength, tone and endurance of tibial flexor and extensor muscles in patients after meniscular tear

Problem of the study. Meniscus is one of the most injured structures in knee joint. Every year 6 of 1000 people of word popularity is diagnosed with meniscular tear. It is 4 times more common among men than in women. Closed kinetic chain (CKC) or open kinetic chain (OKC) exercises can be used for effective quadriceps and biceps femoral muscle strengthening, muscle tone correction, and muscle endurance training(Sullivan et al, 2018). CKC exercises are safer than OKC exercises and are therefore more often recommended for rehabilitation after meniscus rupture. The aim of study: to evaluate the effectiveness of open and closed kinetic chain exercises in correcting strength, tone and endurance of tibial flexor and extensor muscles in patients after meniscal tear. Objectives of study: 1. To evaluate strength of tibial flexor and extensor muscles for patients after meniscal tear at the beginning and at the end of study 2. To evaluate muscle tone of tibial flexor and extensor muscles for patients after meniscal tear at the beginning and at the end of study 3. To evaluate endurance of tibial flexor and extensor muscles for patients after meniscal tear at the beginning and at the end of study 4. To do the comparative analysis between two experimental groups. The object of the study: the effectiveness of open and closed kinetic chain exercises in correcting strength, tone and endurance of tibial flexor and extensor muscles in patients after meniscal tear. Hypothesis. Closed kinetic chain exercises will have positive effect in correcting strength, tone and endurance of tibial flexor and extensor muscles for patients after meniscal tear. Methods: 1. VAS pain evaluation scale; 2. Muscle functional capability test; 3. Statical endurance evaluation of tibial flexors and extensors; 4. Evaluation of knee joint flexion and extension movement amplitude; 5. Subjective evaluation of knee joint function; 6. Evaluation of volume of injured knee joint; 7. Mathemathic statistical analysis of data. Results. There were no significant differences between the groups in muscle strength, tone, and static endurance at the beginning of the study (p> 0.05). At the end of the study, when analyzing the results of muscle functional capacity and static endurance, statistically significant differences were found between the study groups (p