Effect Of Integrating And Strengthening Shoulder And Neck Exercise On Lung Function In Young Women With Forward Head Posture

Objective:The purpose of this study was to investigate whether integrating and strengthening shoulder and neck exercise can improve the bone structure and lung function in young women with forward head posture.Methods:(1)According to the mechanism of forward head posture affecting lung function,combined with the physiological characteristics and living habits of Chinese residents,on the basis of consulting authoritative literature,a set of integrating and strengthening shoulder and neck exercise suitable for Chinese residents is compiled.(2)This study was a before and after self control study,by means of convenient sampling.During September 2019 to November 2019,according to the inclusion and exclusion criteria,female students in a university in Changchun,Jilin Province,whose craniovertebral angle was less than 53 ° were invited to participate in the experiment.On the first day of the study,the baseline pulmonary function was measured,and then a 3-month integrating and strengthening shoulder and neck exercise training was performed.After 3 months of training,craniovertebral angle was measured and subjects with craniovertebral >53° were selected to measure second lung function.The measured lung function parameters included vital capacity,maximum ventilation volume,forced expiratory volume in one second,forced vital capacity,peak expiratory flow,peak inspiratory flow,minute ventilation,inspiratory capacity,maximal inspiratory pressure and maximal expiratory pressure.(3)Paired sample t test was used to analyze the craniovertebral angle and lung function before and after the integrating and strengthening shoulder and neck exercise;When the data conform to normally distributed,the correlation between lung function and craniovertebral angle was analyzed by Pearson’s correlation coefficient;Spearman’s correlation coefficient was used when non-normally distributed.Results:In this study,a total of 107 subjects met in the inclusion and exclusion criteria.In the process of the experiment,12 samples were lost due to participants’ fever,examination and other reasons,and the final effective sample size was 95.(1)Comparison of craniovertebral angle before and after the integrating and strengthening shoulder and neck exercise: After 3 months of integrating and strengthening shoulder and neck exercise training,95 subjects showed increased craniovertebral angle compared with baseline(42.15±3.56 vs 57.41±6.78,P<0.001).It indicated that there was significant difference in craniovertebral angle before and after the integrating and strengthening shoulder and neck exercise.(2)Changes of lung function before and after the integrating and strengthening shoulder and neck exercise: After three months of integrating and strengthening shoulder and neck exercise,the results of 95 subjects showed that the pulmonary function parameters were significantly improved compared with the baseline.Among them,minute ventilation(174.74±72.24 vs 203.55±97.24,P<0.001),tidal volume(87.43±12.34 vs 89.58±11.85,P<0.001),inspiratory volume(91.54±19.90 vs98.70±21.73,P<0.001),forced vital capacity(88.07±12.56 vs 90.35±11.75,P<0.001),and forced expiratory volume in 1 second(90.00±10.56 vs 92.44±10.56,P<0.001)were statistically significant compared with baseline.However,peak inspiratory flow,peak expiratory flow,maximum inspiratory pressure and maximum expiratory pressure had no significant differences before and after the integrating and strengthening shoulder and neck exercise training(P>0.05).(3)Correlation between the severity of forward head posture and lung function:the craniovertebral angle was positively correlated with vital capacity(r = 0.540,P =0.009),forced vital capacity(r = 0.667,P = 0.001),forced expiratory volume in the first second(r = 0.601,P = 0.003),minute ventilation(r = 0.531,P = 0.011),deep inspiratory volume(r = 0.452,P = 0.035)and maximal voluntary ventilation(r =0.580,P = 0.005).Conclusion:(1)The three-month integrating and strengthening shoulder and neck exercise can improve the abnormal posture of people with forward head posture and reduce the severity of forward head posture.(2)The integrating and strengthening shoulder and neck exercises can improve the adverse effects of forward head posture on lung function,which is effective for clinical rehabilitation.(3)Lung function was decreased with the severity of forward head posture.