A Comparative Study On The Therapeutic Effect Of Isometric Squat With A Swiss Ball And Isometric Squat Against A Wall For Patellar Chondromalacia

Purpose: Patellar chondromalacia is a chronic knee joint disease that occurs frequently in the population.It is usually caused by the disorder of the biomechanical relationship of the patellofemoral joint.The main clinical symptom is the pain in the front of the knee joint.As for the treatment and prevention of patellar chondromalacia,doing functional rehabilitation training as conservative therapy,especially using isometric squat to train the quadriceps is an important method.With clinical practice,this study proposes a training method for isometric squat with a Swiss ball,and compares it with traditional isometric squat training against a wall.It aims to find a more novel and scientific isometric squat training method and observe the therapeutic effect of two isometric squat training on patellar chondromalacia for patients with patellar chondromalacia.Method: The research is carried out through methods of literature,experimental method,questionnaire survey and expert interviews.According to the experimental requirements,23 effective male patients with patellomalacia were selected to participate in the experiment.They have been investigated and studied the relevant characteristics,symptoms and causes of injury,and randomly divided into two groups A and B.Group A received isometric squat training with a Swiss ball,and group B received isometric training against a wall.The whole experiment period was 8 weeks.Before training and every two weeks after training,the visual analogue scale(VAS)and revised Lysholm knee score scale(LKSS)were measured for changes as the observation indicators.Results:(1)The ages of groups A and B were basically the same.There were 23 test patients,all of whom were young people around 30 years old.The duration of the disease varies from 3 months to 5 years(62 months).Some patients have unilateral affected keens and some have bilateral affected knees.Few patients have symptoms on both knees,while the number of patients tested with symptoms on unilateral knees is the most.All subjects have pain in the front of the knee joint.Most patients cannot run and jump.More than half of the subjects had varying degrees of worsening pain when going downhill,standing after sedentary and going up and down,feeling legs unstable,fearing of feeling joints cold,repeating knee joint swelling,fluid effusion,knee instability,noose and other symptoms.;(2)The results of visual analogue scale(VAS)showed that after eight weeks of training,the VAS of group A was significantly lower than which before the start of training,with a very significant difference(P<0.01),while the VAS of group B did not change significantly,and there was no significant difference(P>0.05);the VAS of group A was significantly lower than that of group B,with a significant difference(P<0.05);(3)The results of the reviesed Lysholm knee score scale(LKSS)showed that the scores of both groups A and B were higher after eight weeks of training compared of which before the start,there was a significant difference(P<0.05);and the number of group A was higher than that of group B,and there was a significant difference(P<0.05).Conclusion:1.Basic situation(1)subject population: The subject population is mainly young people and sports enthusiasts with unilateral patellomalacia symptoms.Among them,most of the subjects love basketball and football.A small number of patients are middle-aged,a small number of patients have bilateral patellomalacia,and some patients have no exercise habits.The course of the subjects ranged from 3 months to 5 years.(2)Related symptoms: All people have pain symptoms on the anterior side of the knee joint.Most patients cannot run and jump.More than half of the subjects had symptoms of varying degrees of worsening pain when going downhill,standing after sedentary and going up and down,feeling legs unstable,fearing of feeling joints cold,repeating knee joint swelling,fluid effusion,knee instability,noose and other symptoms.Among them,all non-sports enthusiasts tested patients had symptoms of feeling knees unstable when go up and down.(3)Causes of injury:(1)MRI showed high patella or congenital femoral trochlear dysplasia;(2)engaged in intense and confrontational sports;(3)inappropriate exercise intensity and amount of exercise(4)inadequate preparation and recovery before and after exercise;(5)lack of correct exercise mode and awareness of injury prevention.2.Both the isometric squat training with a Swiss ball and the isometric squat training against a wall have a certain effect on patellomalacia,but the isometric squat against a wall does not significantly change the symptoms of knee joint pain.3.The isometric squat training with a Swiss ball is better than the isometric squat training against a wall on the improvement of knee joint function.