The Research Of Respiratory Training Combined With PNF On Upper Crossed Syndrome

Objective:Upper crossed syndrome(UCS)is a common bad posture syndrome,which has adverse effects on all aspects of the human body.This study revolves around the bad posture of UCS,and discusses the effect of respiratory training combined with PNF stretching and strength training on pain,range of motion of cervical spine joint,posture and pulmonary function in patients with upper crossed syndrome.To provide a theoretical basis for improving the upper crossed syndrome,so as to further promote the methods of improving the upper crossed syndrome and maintaining good posture.Methods:In this study,teachers and college students in Xi'an Physical Education University who meet the symptoms of upper crossed syndrome were selected as the subjects.A total of 45 subjects were selected and randomly divided into control group,PNF training group(hereinafter referred to as PNF group),respiratory training combined with PNF training group(hereinafter referred to as combined group),each group had15 persons.The control group received no intervention and did not carry out any other therapeutic activities during the experiment.The PNF group received PNF stretching and strength training,including muscle stretching for 10 minutes and strength training for about 20 minutes.The combined group added 20 minutes respiratory training on the basis of PNF group.The intervention of PNF group and combined group lasted for5 weeks and 4 times a week.Before and after the intervention,pain was assessed in all subjects,including shoulder and neck pain numerical score(NRS)and cervical dysfunction index(NDI)score.Evaluation of active range of motion of cervical spine included flexion,extension,left flexion,right flexion,left rotation and right rotation.Posture assessment related to upper crossed syndrome included craniocervical angle(CVA),the distance of forward head position,rounded shoulder angle(RSA),the angle of thoracic curvature kyphosis,horizontal distance between cervical curvature apex and thoracic curvature apex.Pulmonary function tests included vital capacity(VC),forced vital capacity(FVC),forced vital capacity per second(FEV1)and maximum ventilation volume(MVV).The experimental data were tested by paired sample t-test for intra-group significant difference.One-way ANOVA was used to test the difference between groups.P<0.05 was significant difference,P<0.01 was very significant difference.Results:(1)Comparisons of cervical pain indicators before and after intervention:(1)Comparison of NRS:After 5 weeks of intervention,NRS in PNF group and combination group decreased significantly(P<0.01),the NRS of the combined group improved more greatly among them.(2)comparison of NDI :After 5 weeks of intervention,NDI in PNF group and combination group decreased significantly(P<0.01).There was a significant difference in NDI between PNF group and control group(P<0.05).There was a significant difference between the combined group and the control group(P<0.01).(2)Comparisons of cervical active joint mobility before and after intervention:(1)Flexion range of motion:The flexion range of motion in PNF group decreased significantly after intervention(P<0.05).(2)Extension range of motion of joints: The combined group increased significantly after intervention(P<0.01).(3)Left flexion range of motion: The left flexion in PNF group and combination group increased significantly after intervention(P<0.01),and the improvement in combination group was greater.(4)Right flexion range of motion: The right flexion of PNF group and combination group increased significantly after intervention(P<0.01).Compared with control group,there were significant differences between PNF group and combination group after 5 weeks of intervention(P<0.05).(5)Left rotation range of motion:The left rotation range of motion in the combined group increased significantly after intervention(P<0.01).(6)Right rotation range of motion: PNF group and combination group increased significantly after intervention(P<0.01).(3)Comparison of postural indicators related to upper crossed syndrome before and after intervention:(1)Craniocervical Angle(CVA):Compared with before intervention,CVA in PNF group and combination group increased significantly(P<0.01).Intergroup comparison,the difference between PNF group and combination group was significant(P<0.01)after intervention.There was a significant difference between the PNF group and the combined group after intervention(P<0.05),and the combined group had a better improvement effect.(2)The distance of forward head position:Compared with before intervention,the PNF group and the combination group decreased significantly(P<0.01).Compared with the control group,there were significant differences between the PNF group and the combination group after intervention(P<0.01).(3)Round shoulder angle(RSA):Compared with before intervention,both PNF group and combination group decreased significantly(P<0.01).Compared with the control group,there was significant difference(P<0.05)in PNF group after intervention,and significant difference(P<0.01)in combination group after intervention.(4)The angle of thoracic curvature kyphosis: The combined group had a significant decreased in the angle of thoracic curvature kyphosis after intervention(P<0.05).(5)The horizontal distance between cervical curvature apex and thoracic curvature apex:Compared with before intervention,the distance between PNF group and combination group decreased significantly after intervention(P< 0.01).Compared with the control group,there was a significant difference in the distance between the PNF group and the control group(P<0.05).There was a significant difference in combination group(P<0.01)and the combination group improved more greatly.(4)Comparison of pulmonary function before and after intervention:(1)Vital capacity(VC):There was no significant change before and after intervention in the three groups(P>0.05).(2)Forced vital capacity(FVC): There was no significant change before and after intervention in the three groups(P>0.05).(3)forced vital capacity in one second(FEV1):Compared with before intervention,there were significant increases in PNF group and combination group(P<0.01).There was a significant difference between the combined group and the control group(P<0.01).In combination group,the improvement was greater.(4)Maximum ventilation volume(MVV):Compared with before intervention,PNF group and combination group were significantly increased after intervention(P<0.01).Compared with the control group,there was a significant difference in MVV in PNF group after intervention(P<0.05).The change of MVV in combination group was significantly different after intervention(P<0.01),and the improvement was greater in combination group.Conclusions:(1)5 weeks of PFN training can significantly improve the degree of pain and dysfunction of cervical spine in patients with upper crossed syndrome.Combining respiratory training can improve pain more greatly.(2)5 weeks of PFN training can improve the range of motion of cervical spine joints in patients with upper crossed syndrome.Respiratory training can improve the range of motion of cervical joints in all directions.(3)5 weeks of PFN training and respiratory training can improve the bad posture of forward head position and rounded shoulder in patients with upper crossed syndrome.It can also improve cervical curvature and thoracic curvature.(4)5 weeks of PFN training combined with respiratory training can improve pulmonary ventilation function in patients with UCS.