| Objective:Lower crossed syndrome(LCS),also known as pelvic crossed syndrome,can be divided into type A and type B.Type A is mainly manifested as pelvic anteversion,which is a kind of poor body posture and will have adverse effects on the body.At present,there are few studies on the functional characteristics of type A Lower crossed syndrome at home and abroad,and there is still no quick and effective rehabilitation intervention method to correct the bad posture caused by it.Therefore,this study summarized the functional characteristics of type A Lower crossed syndrome by comparing the differences between young women with type A Lower crossed syndrome and normal healthy young women in terms of anterior pelvic tilt angle,trunk inclination angle,hip joint mobility,and muscle strength,so as to provide reference for the comprehensive assessment and rehabilitation intervention.AT the same time,a corresponding rehabilitation treatment plan was developed for young women with type A Lower crossed syndrome.Specifically,PNF stretching technology combined with muscle training was used for 8 weeks of rehabilitation treatment intervention.In order to explore the rehabilitation intervention effect of this progrom on young female with type A Lower crossed syndrome,which provides theoretical basis for the effective correction of poor posture caused by the Lower crossed syndrome,thus maintaining good posture of young women and preventing the occurrence of low back pain.Methods:In this study,female college students and normal healthy female college students who meet the symptoms of type A lower crossed syndrome in Xi'an Physical Education University were taken as the research objects.A total of 67 students were recruited,including 32 healthy female college students and 35 pelvic anteversion female college students.16 normal healthy female college students were randomly selected as the control group.After further screening,19 female college students who met the criteria of type A lower crossed syndrome were included in the formal experimental group.The control group did not perform any intervention and did not perform any other therapeutic activities during the experiment.Nineteen subjects in the experimental group underwent an 8-week PNF stretching and muscle training intervention.The intervention was conducted three times a week for 30 minutes each time.PNF stretching is about 10 minutes. Strength training includes abdominal,gluteal and hamstring muscle strength training 20 minutes.Before and after the intervention,all subjects were measured for waist circumference,hip circumference,anterior pelvic tilt angle,trunk inclination angle measurement;hip and teunk flexion strength test;hip flexion and extension activity test.The experimental data were tested for significant differences between groups using the independent sample T test,and the significant differences within the group were tested using the paired sample T test.P <0.05 was a statistical difference and P <0.01 was a significant difference.Results:(1)Comparison of circumference indicators before and after the experiment:(1)There was no significant difference in waist circumference,hip circumference,and waist-hip ratio between the experimental group and the control group before the experiment(P> 0.05);(2)There were no significant differences in waist circumference,hip circumference,and waist-hip ratio between the experimental group and the control group after the experiment(P> 0.05);(3)There was no significant difference in waist circumference,hip circumference and waist-to-hip ratio in the experimental group after the experiment(P> 0.05).(2)Comparison of the anterior pelvic tilt angle before and after the experiment:(1)The anterior pelvic tilt angle is relatively large in the experimental group compared with the control group before the experiment(P <0.01);(2)There was no significant difference in the anterior pelvic tilt after the experiment(P> 0.05);(3)The anterior pelvic tilt angle in the experimental group decreased significantly after the experiment(P <0.01).(3)Comparison of the trunk inclination angle before and after the experiment:(1)The trunk inclination angle of the experimental group is relatively large compared with the control group before the experiment(P <0.05);(2)There was no significant difference in the trunk inclination angle of the experimental group and the control group after the experiment(P> 0.05);(3)The trunk inclination angle of the experimental group decreased significantly after the experiment(P <0.01).(4)Comparison of the index of hip joint mobility before and after the experiment:(1)Compared with the control group,the flexion of the hip joint was relatively small in the experimental group before the experiment(P <0.05),and the extension mobility was significantly smaller(P <0.01).There was no significant difference in hip flexion and extension between the experimental group and the control group(P> 0.05);(2)There was no significant difference in hip flexion and extension between the experimental group and the control group after the experiment(P(> 0.05);(3)The hip flexion and extension mobility of the experimental group increased significantly after the experiment(P <0.01).(5)Comparison of trunk strength indexes before and after the experiment:(1)There was no significant difference in trunk flexion peak torque,back extension peak torque,and flexion peak extension torque ratio between the experimental group and the control group before the experiment(P> 0.05);(2)There was no significant difference in trunk flexion peak torque,peak extension torque and flexion peak extension ratio in the group(P>0.05).(3)The trunk flexion peak torque of the experimental group increased significantly after the experiment(P < 0.05).There was no significant difference in peak extension torque and flexion peak extension ratio(P>0.05).(6)Comparison of hip strength indexes before and after the experiment:(1)There was no significant difference in hip flexion peak torque,peak extension torque,and flexion peak extension torque ratio between the experimental group and the control group before the experiment(P> 0.05).There was no significant difference in flexion peak torque,posterior extension torque,and flexion-extension peak torque ratio of the hip joint muscle groups on the left and right sides of the experimental group and the control group(P > 0.05);(2)After the experiment,the peak flexion torque,The peak extension torque was significantly increased(P<0.05),and there was no significant difference in the ratio of flexion and extension torque(P>0.05);(3)Compared with the experimental group after the experiment,the peak flexion torque of the hip joint increased significantly(P <0.01),The peak extension torque was significantly increased(P <0.05),and there was no significant difference in the peak extension torque ratio(P>0.05).Conclusions:(1)Compared with normal healthy young women,young female patients with type A lower crossed syndrome show certain significant characteristics in terms of function,and their posture was manifested as pelvic anteversion,trunk anteversion,abdominal lordosis,buttocks warped and slight flexion of the hip joint.In terms of joint mobility,the flexion and extension of the hip joint are slightly limited,and the flexion and extension of the left and right hip joints are reduced..In terms of muscle strength,the flexor and extensor muscles of the trunk and the flexor and extensor muscles of the hip are out of balance,but the left and right sides of the hip are balanced.(2)8 weeks of PNF stretching and strength training can effectively correct the poor posture of the pelvic anteversion and trunk anteversion with type A lower crossed syndrome,increase the range of hip flexion and extension,and improve the function of unbalanced muscles of the trunk and hip flexors and extensors. |
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