| Research background: In the process of social development,there are many unstable factors,and it has been difficult to eliminate illegal and criminal incidents.Coupled with the continuous infiltration of international hostile forces,criminal acts occur from time to time.Special police experience strict training,master special skills and are equipped with professional equipment,but the reality is that this group is one of the most public occupations in which sleep and mental health problems are prominent.Purpose and Significance of the study: To clarify the special police physical activity,the relationship between sleep quality and anxiety and depression,to explore the sleep quality of taijiquan exercise on the special police,anxiety and depression and the effect of mining potential application value of taijiquan to the special police,looking for a real and effective and safe and reliable interventions,in order to alleviate the current special police the prevalence of sleep and mental health problems.Explore the potential value of Taijiquan in medical fields such as health promotion of special police,enrich the research system of Taijiquan application,and provide new ideas for promoting the physical and mental health of frontline staff.To provide an economical,simple and operable program for the common problems of sleep quality,depression and anxiety of special police,and reduce the medical burden of the country and families.Research objects and methods: This study mainly applied the literature method,expert interview method,cross-sectional survey method,experimental method and mathematical statistical analysis.A total of 60 male special police officers aged 25-45 years of Shanghai Municipal Public Security Bureau(mainly concentrated in the second branch of riot assault)were recruited and randomly divided into experimental group and control group(because of the very low proportion of female special police officers in the unit,they were not considered).The experimental period lasted for 12 consecutive weeks,starting from June 2021 and ending in September of the same year.One-hour simplified 24-type Tai Chi exercise was conducted from 16:00 to 17:00each Monday,Wednesday and Friday,with a bullseye rate of 120-140 times/min.The Pittsburgh Sleep Quality Index,Self-rating Anxiety Scale and Self-rating Depression Scale were used to conduct a questionnaire survey for each subject before the test and at the sixth and twelfth weekend of the experiment.Results:(1)the detection rate of depression symptoms,anxiety symptoms and sleep problems in special police was 44.90%,10.20% and 46.94%,respectively.(2)Depression was positively correlated with anxiety(r=0.432,P=0.002),and sleep(r=0.345,P=0.015).Anxiety was positively correlated with sleep(r=0.614,P<0.001).(3)Physical activity level was negatively correlated with depression,anxiety scores and sleep quality(P<0.05);(4)Physical activity level had an indirect effect of 28.70%on depression score through sleep time(Beta=--0.095,95%CI=-0.276--0.008).Physical activity level had a 40.50% indirect effect on anxiety score through sleep disturbance(Beta=-0.147,95%CI=-0.438--0.006).(5)After the experimental intervention,the interaction effect between the time of sleep quality change and the group was significant(F=3.297,P=0.044,partial η2=0.066),and the interaction effect between the time of depression score and the group was significant(F=81.258,P<0.001,partial η2=0.634).The interaction effect between the time of change of anxiety score and group was significant(F=41.534,P<0.001,partial η2=0.469).Conclusions:(1)lack of sleep quality,depression and anxiety symptoms are common problems of special police,and the detection rate of sleep quality and depression symptoms is high.(2)There was a close relationship between sleep quality,depression and anxiety symptoms of special police,and anxiety was the strongest correlation with sleep quality;(3)The physical activity level of special police was negatively correlated with sleep quality,depression and anxiety symptoms;(4)The sleep quality of special police officers plays a mediating role between the level of physical activity and depression and anxiety symptoms.Specifically,the increase of the level of physical activity of special police officers may lead to an earlier time to fall asleep,and then reduce the level of depression,and may lead to a decrease in the number of sleep disorders at night,and then reduce the level of anxiety.(5)Six weeks of tai chi exercise could significantly improve the sleep quality,depression and anxiety symptoms of special police,and the effect was better after 12 weeks,but the improvement rate was slowed down. |
