Effect Of Antigravity Treadmill Training On Early Rehabilitation After Anterior Cruciate Ligament Reconstruction

Objective: To observe the efficacy of anti-gravity treadmill training in early rehabilitation after anterior cruciate ligament reconstruction,to explore the influence of anti-gravity treadmill training combined with conventional rehabilitation training on relevant indicators,and to provide scientific theoretical basis for the application of anti-gravity treadmill training in early rehabilitation after anterior cruciate ligament reconstruction.Methods: A total of 54 patients who underwent anterior cruciate ligament reconstruction were selected from the Rehabilitation Medicine Clinic,orthopedic Clinic,Sports Medicine Center and the Medical Consortium of Zhongda Hospital from December 1,2022.All patients signed informed consent forms and were numbered.The patients were randomly divided into three groups: Group A(conventional treatment group,18 patients),group B1(conventional walking training group,18 patients)and group B2(anti-gravity treadmill training group,18 patients).All patients in the three groups were given routine basic rehabilitation training,3 times a week.Group A only received routine basic rehabilitation training,group B1 received routine walking training on the basis of routine basic rehabilitation training,and group B2 received anti-gravity treadmill training on the basis of routine basic rehabilitation training.Each group was treated three times a week for five weeks.Knee motor function(IKDC-2000 knee function score,lysholm score),ultrasonic morphology(thickness,pinniate Angle,cross-sectional area)of the rectus femoris,proprioception of the knee joint(recurrence deviation of the knee joint 0° ～ 40°,recurrence deviation of the knee joint 41° ～ 80°),stability of the knee joint(KT-1000 measurements),and quadriceps femoris Each index of muscle recruitment degree(vastus medialis AEMG,rectus femoris AEMG,vastus lateralis AEMG)was evaluated by rehabilitation treatment,and the treatment cycle was 5 weeks.The first data were collected before the first treatment,and the second data were collected after the treatment cycle.The collected experimental data were sorted out and analyzed,and finally discussed.Research results: Before the treatment,The knee motion function(IKDC-2000 knee function score and lysholm score),ultrasonic morphology of the rectus femoris muscle(thickness,pinniate Angle,cross-sectional area),proprioception of the knee joint(recurrence deviation of the knee joint from 0° to 40°,recurrence deviation of the knee joint from 41° to 80°),and stability of the knee joint(KT-1000 measurements)were not clear in the three groups The difference was significant(P>0.05).After 5 weeks,knee motor function(IKDC-2000 knee function score and lysholm score)were significantly different among the three groups compared with before treatment(P<0.05).There were no significant differences between group B1 and group A(P>0.05),there were significant differences between group B2 and group A(P<0.05),there were significant differences between group B2 and group B1(P<0.05);The ultrasonic morphology(thickness,pinnate Angle and cross-sectional area)of the rectus femoris muscle in the three groups were significantly different compared with that before treatment(P<0.05).There were no significant differences among the three groups(P>0.05).Knee proprioception(recurrence deviation of knee 0° ～40° and 41° ～ 80°)was significantly different among the three groups compared with before treatment(P<0.01).There were no significant differences between B1 and group A(P>0.05),there were significant differences between B2 and group A(P<0.05),and there were significant differences between B2 and group B1(P<0.05).Knee stability(measured by KT-1000)was significantly different among the three groups compared with that before treatment(P<0.01).There were no significant differences between B1 and group A(P>0.05),there were significant differences between B2 and group A(P<0.05),and there were significant differences between B2 and group B1(P<0.05).The degree of quadriceps muscle recruitment(femoris medialis,rectus femoris and lateralis femoris AEMG)in anti-gravity treadmill training group was significantly different from that before treatment(P<0.05).Conclusion:(1)5 weeks of routine basic rehabilitation training,routine walking training and anti-gravity treadmill training can effectively improve knee motor function,ultrasonic morphology of the rectus femoris muscle and proprioception of the knee joint.(2)Compared with the conventional treatment group and the conventional walking training group,the antigravity treadmill training group had better clinical efficacy in the knee motor function,knee proprioception and knee stability,but the ultrasonic morphology of the rectus femoris muscle after treatment was no different from the other two groups.(3)Anti-gravity treadmill training can improve the degree of quadriceps muscle recruitment in patients with ACL reconstruction.