高速公路长下坡处避险车道引道设置浅析

结合避险车道引道的作用和功能,车辆在进入避险车道车速快的特点,分析了国内现有避险车道引道设置的一些缺陷,结合人机工程学的知识,结合国内外的经验,对避险车道引道长度设置作了分析,提出地形受限时引道长度设置不足时一些积极主动的措施。

Clinical observation of acupuncture and traction plus Ba Duan Jin(Eight-brocade Exercise)for improving discogenic low back pain

Objective:To observe the short-term and long-term efficacy of acupuncture and traction plus Ba Duan Jin(Eight-brocade Exercise)in treating discogenic low back pain(DLBP).Methods:Sixty patients were divided into an observation group and a control group using the random number table method,with 30 cases in each group.The control group was intervened by acupuncture and traction,while the observation group was given additional Ba Duan Jin(Eight-brocade Exercise)practice.The intervention lasted for a total of 1 month,with a follow-up study conducted 6 months later.The visual analog scale(VAS)and Oswestry disability index(ODI)scores in the two groups were compared before and after treatment,and the efficacy was compared at the end of the treatment between the two groups;the relapse rate was compared at the 6-month follow-up between the two groups.Results:The pain VAS and ODI scores decreased after treatment in both groups,and the intra-group differences were statistically significant(all P<0.05);the pain VAS and ODI scores in the observation group were lower than those in the control group after treatment with statistical significance(both P<0.05).At the 6-month follow-up,the relapse rate was 10.3%in the observation group versus 48.0%in the control group,and the between-group difference was statistically significant(P<0.05).Conclusion:The combination of acupuncture,traction and Ba Duan Jin(Eight-brocade Exercise)is an effective method for DLBP and patients who received this method are less likely to relapse.

Efficacy evaluation of different forms of traditional Chinese health-preservation exercises for osteoporosis:a network meta-analysis

Objective To systematically evaluate the effects of different forms of traditional Chinese health-preservation exercises on osteoporosis(OP)using network meta-analysis.Methods A systematic search on Excerpta Medica Database(EMBASE),Springer Link,Allied and Complementary Medicine Database(AMED),PubMed,Cochrane Library,China National Knowledge Infrastructure(CNKI),Wanfang Academic Journal Full-text Database(Wanfang)and Chongqing VIP Database(CQVIP)targeted the randomized controlled trials(RCTs)studying traditional Chinese exercises for OP published up to January 2020.Cochrane handbook was adopted to estimate the publication bias in the included studies,and statistical analysis was performed using Stata 14.0 and GeMTC 0.14.3 when data were extracted.Results Fifty RCTs were included in the network meta-analysis,comprising a total of 4505 OP patients.The network meta-analysis showed that in terms of visual analog scale(VAS)for pain,Tai Ji Quan(Tai Chi)was the most efficacious,followed by Yi Jin Jing(Sinew-transforming Qigong Exercises),Ba Duan Jin(Eight-sectioned Exercise),Wu Qin Xi(Five-animal Exercises),sports training,drug and blank control;in terms of bone mineral density(BMD)of femoral neck,Yi Jin Jing was the most efficacious,followed by Wu Qin Xi,Ba Duan Jin,Tai Ji Quan,sports training,blank control and drug;regarding the lumbar BMD,it was Yi Jin Jing,Tai Ji Quan,Ba Duan Jin,Wu Qin Xi,sports training,blank control and drug in the descending order of efficacy;in terms of serum alkaline phosphatase,it was Yi Jin Jing,Tai Ji Quan,sports training,Wu Qin Xi,Ba Duan Jin,drug and blank control in the descending order of efficacy.Conclusion The evidence to date suggests that the first choice for OP amongst the traditional Chinese exercises should be Yi Jin Jing,which can not only reduce the subjective pain,but also promote bone formation and increase BMD,though this conclusion requires more high-quality large-scale RCTs for further proof.