Objective To observe the characteristics of respiratory airflow in healthy adults and stable chronic obstructive pulmonary disease (COPD) patients by analysis of analyzing tidal breathing flow-volume curves (TBFV). Methods Fifteen stable moderate COPD patients (COPD group) and 15 healthy cases without smoking(healthy control group)were enrolled into the study. No bronchodilators were used in patients of COPD group 8 h before test. Pulmonary function test and TBFV in seated position were measured, and the pressure of oral cavity was monitored concomitantly. Results The levels of percentage of vital capacity (VC%), percentage of forced expiratory volume in the first second (FEV 1)/forced vital capacity (FVC) and percentage of maximum mid-expiratory flow (MMEF%) in COPD group were significantly lower than those in healthy control group (P<0.01). The parameters of TBFV showed that the fraction of exhaled volume to achieve PTEF to VTE (VPTEF/VTE) and the fraction of exhaled time to achieve PTEF to TE (TPTEF/TE) in COPD group were 0.18 ± 0.08 and 0.20 ± 0.08, which were lower than those in healthy control group: 0.27 ± 0.04 and 0.29 ± 0.06, and there were significant differences (P<0.01). The level of peak tidal expiratory flow (PTEF) and peak tidal inspiratory flow (PTIF) in two groups had no significant differences (P>0.05). The levels of tidal expiratory flow at 50%of the remaining tidal volume/PTEF (TEF50/PTEF) and tidal expiratory flow at 25%of the remaining tidal volume/PTEF (TEF25/PTEF) in healthy control group were significantly higher than those in COPD group:0.54 ± 0.13 vs. 0.40 ± 0.12, 0.28 ± 0.13 vs. 0.20 ± 0.06, P<0.01 or<0.05. No differences were found in peak inspiratory pressure (PI max) and peak expiratory pressure (PE max) between two groups. Conclusions The degree of airflow limitation and the effect of bronchodilator in critical patients could be evaluated by analysis of TBFV parameters. The measurement of TBFV is simple and don′t need special technique. It is worth of promoting.

Objective To explore the association between walking time and the perception of built environment among local adults in Hangzhou.Methods Through multistage stratified random sampling,a total of 1 440 urban residents aged 25-59 years were surveyed in Hangzhou by face-to face interview in 2012.The international physical activity questionnaire-long version (IPAQ-L) was used to assess the physical activity levels,including walking time in the past week.Neighborhood Environment Walkability Scale-Abbreviated (NEWS-A) was used to obtain information about their perception of built environment.Multiple logistic regression was applied to estimate the relationship between waking and the perception of built environment.Results Among the local adults in Hangzhou,the median of total physical activity was 2 766 met · min-1 · week 1,the average walking time per week was 90 min for leisure and 100 min for transportation respectively.After controlling the age,marital status,BMI,educational level,employment,community type and the total PA scores,the leisure-time walking was negatively related to the accessibility to stores,facilities and other things for both man (OR=0.764,95％CI:0.588-0.992) and woman (OR=0.633,95％CI:0.481-0.833).In sex specific analysis,the leisure-time walking was negatively related with the residential density (OR=0.997,95％CI:0.996-0.999) while transportation related walking was positively related with walking/cycling way scores (OR=1.537,95％ CI:1.138-2.075) in females.In contrast,there were no significant associations between perception of built environment and transportation related walking in males.Conclusion Improving the built environment,such as the walking/cycling way,might be useful to increase the transportation related walking time for adults.The sex specific differences need to be considered in the environment intervention for walking promotion.

Objective To understand the perceptions of physical activity-related built environment among urban adults in Hangzhou.Methods A face-to-face interview was conducted among the urban residents aged 25-59 years selected through multistage stratified random sampling in Hangzhou in 2012.The Neighborhood Environment Walkability Scale-Abbreviated (NEWS-A) was used to assess the perception of built environment among residents,including residential building density,the diversities of stores,facilities and others,the accessibility to public service,the street connectivity,walking/cycling facilities,aesthetics,traffic safety,and public security.The multilevel logistic regression model was used to assess the demographic characteristics,BMI and other factors' influence on people' s perceptions.Results Among 1 362 local residents surveyed,no sex,martial status and occupation specific significant differences in the perception of built environment were found.After adjusting other factors,the age group 45-59 years was positively related to the score of street connectivity (OR=2.02,95％ CI:1.30-3.15).The educational level of college or higher was positively associated with the score of residential building density(OR=1.97,95％CI:1.29-3.00) but negatively associated with the score of facility variety(OR=0.65,95％ CI:0.43-0.97).Overweight or besity was negatively related to the scores of walking/cycling ways (OR=0.67,95％CI:0.48-0.95) and public security(OR=0.75,95％ CI:0.57-0.99).Compared with the class Ⅰ residential area,the people in class Ⅲ residential area had lower perception scores on facility diversity (OR =0.11,95％ CI:0.04-0.30),accessibility to public service (OR=0.33,95％ CI:0.11-0.95),street connectivity (OR=0.30,95％ CI:0.11-0.86) and traffic safety (OR=0.39,95％ CI:0.17-0.91).Conclusion The perceptions of physical activity-related built environment was associated with age,educational level,BMI and residential area.The personal characteristics should be considered while performing environment intervention on physical activity.

Objective To evaluate the effect of the Oxford Health Alliance-Community Interventions for Health on chronic diseases prevention and control capacity in community medical staff in Hangzhou.Methods A two year comprehensive intervention on chronic disease prevention and control capacity was conducted in the medical staff in Xiacheng district and Gongshu district,Xihu district was used as control according to the study design principal of parallel comparison and non-random grouping.The intervention effect was evaluated with Cochran-Mantel-Haenszel test.A total of 985 questionnaires were completed in the baseline survey and 870 questionnaires were completed in the follow-up survey.Results After 2 year intervention, the detection rates of blood cholesterol, blood pressure and fasting blood glucose by community medical staff significantly increased compared with the rates before the intervention (x2 =7.97, P =0.05;x2 =27.21, P =0.00;x2=21.32, P=0.00).While, in the control district, the fasting blood glucose detection rate increased from 25.37％ to 31.19％, the differences showed statistical significance (x2=15.29, P=0.00).The communication between community medical staff and patients about healthy diet pattern was improved after the intervention, the difference was statistical significant (x2=8.64, P=0.03).However, no significant differences in communication about increasing physical activity and smoking cessation between community medical staff and patients was found before and after intervention both in intervention districts and in control district.Furthermore, multivariate logistic regression analysis indicated that the interventions on screening of common chronic diseases and management of chronic diseases patients were related with the detections of blood cholesterol, blood pressure and fasting blood glucose.Moreover, the intervention on counsel and suggestion for chronic disease prevention and control had some influence on the communication about chronic disease risk factors between community medical staff and patients.Conclusion The intervention on chronic disease prevention and control capacity in community medical staff was effective to improve the detection of chronic diseases in community and the communication between the medical staff and patients.

Objective To explore the level of physical activities (PA) and related influencing factors among junior high school personnel in Hangzhou. Methods In a cross sectional study,a self administered questionnaire was used to assess the levels of PA. Kruskal-Wallis H test and ordinal regression were applied to analyze the related factors. Results Among the 1 497 school personnel included in this study,prevalence rates on the low,moderate and high levels of PA were 40.8%,40.6%and 18.6%,respectively. Data from the multinomial logistic regression analysis indicated that:when comparing with the low level,people aged ≥45(OR=1.576,95%CI:1.128-2.201) or those having minor perceived stress(OR=1.490,95%CI:1.141-1.946)more likely to fall into the moderate level. However,factors as higher awareness scores on the benefit of PA(OR=1.070, 95%CI:1.002-1.143),being male(OR=3.088,95%CI:2.162-4.409),always or very often taking PA together with colleagues(OR=2.903,95%CI:1.587-5.312),taking PA once in a while together with colleagues(OR=1.900,95%CI:1.160-3.110)or having space to walk around home(OR=1.657, 95%CI:1.022-2.688) would increase the likelihood of having high PA level. However,factors as marital status,socioeconomic status,years of working at school,BMI,level of having received education and positive impact from colleagues etc. did not seem to have significantly related to the PA level. Conclusion Gender,age,stress from work and supportive environment should be taken into account while planning on promoting the PA level among junior high school personnel in Hangzhou.

Exercise ; Factor Analysis, Statistical ; Health Behavior ; Humans ; Medical Staff ; Motor Activity

OBJECTIVETo explore the level of physical activities (PA) and related influencing factors among junior high school personnel in Hangzhou.

METHODSIn a cross sectional study, a self administered questionnaire was used to assess the levels of PA. Kruskal-Wallis H test and ordinal regression were applied to analyze the related factors.

RESULTSAmong the 1 497 school personnel included in this study, prevalence rates on the low, moderate and high levels of PA were 40.8%, 40.6% and 18.6%, respectively. Data from the multinomial logistic regression analysis indicated that:when comparing with the low level, people aged ≥ 45 (OR = 1.576, 95% CI:1.128-2.201) or those having minor perceived stress (OR = 1.490, 95% CI:1.141-1.946) more likely to fall into the moderate level. However, factors as higher awareness scores on the benefit of PA (OR = 1.070, 95%CI:1.002-1.143), being male (OR = 3.088, 95%CI:2.162-4.409), always or very often taking PA together with colleagues (OR = 2.903, 95%CI:1.587-5.312), taking PA once in a while together with colleagues (OR = 1.900, 95%CI:1.160-3.110) or having space to walk around home (OR = 1.657, 95% CI:1.022-2.688) would increase the likelihood of having high PA level. However, factors as marital status, socioeconomic status, years of working at school, BMI, level of having received education and positive impact from colleagues etc. did not seem to have significantly related to the PA level.

CONCLUSIONGender, age, stress from work and supportive environment should be taken into account while planning on promoting the PA level among junior high school personnel in Hangzhou.

Adult ; China ; Cross-Sectional Studies ; Exercise ; Faculty ; statistics & numerical data ; Female ; Humans ; Logistic Models ; Male ; Middle Aged ; Surveys and Questionnaires