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BACKGROUND:Core training has been gradual y accepted worldwide.“Core”is only a generalized perception, and how to define the muscles, the difference among the muscles and the mode of the muscle recruitment consist of the important part of research work on core training. OBJECTIVE:From the aspects of theoretical basis, the development of training methods and measurement of training effectiveness, to elaborate the method issues and new insights on core stability training. METHODS:PubMed, ScienceDirect and CNKI databases were searched by the keywords of“core training, core exercise, core strength”in the titles and abstract to retrieve relevant articles published from 1979 to 2013. RESULTS AND CONCLUSION:The neural subsystem was first reported by Panjabi to monitor the various signals from the transducers and direct the active subsystem to provide the needed stability. Neutral zone is regarded as an important clinical indicator relevant to spinal stability. Spinal injury and muscle weakening can result in spinal instability and even low back pain and peripheral pain. Core trainings include Swiss bal , plank exercise, sling exercise and so on. Up to now, research on core training is focusing on its mechanism. Core stability training is not only defined as torso stability training, but also refined to the stability training of each joint.
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Purpose To evaluate the correlation between T2-FLAIR hyperintense vessel sign (HVS) and the stenotic degree of internal carotid artery (ICA) and assess the HVS changes after the carotid endarterectomy (CEA). Materials and Methods Fifty-one patients with CEA were retrospectively enrolled. The stenosis of the bilateral ICA were as:≥90%, and<90%. The distribution of HVS locations was classified as three regions:sylvian fissure, sulci of temporo-occipital lobe and other areas. The presence and the location of HVS were counted. The extrension of HVS on T2-FLAIR were graded as:I:the presence of HVS was<1/3 of the MCA territory, II:the presence of HVS was≥1/3 of the MCA territory.χ2-test was performed for correlation between HVS and ICA stenosis. The difference of HVS and stenosis of ICA and their effects on CEA was accessed. Results HVS was significantly higher in the ICA stenosis more than 90%group than in the less than 90% group (χ2=23.584, P<0.001). The frequencies of HVS were 12, 34 and 15 in sylvian fissure, sulci of temporo-occipital lobe and other area, respectively. The proportion of grade II HVS was higher in the ≥ 90% group than in the<90% group (χ2=8.395, P<0.05). After CEA, HVS on 29 affected hemispheres were showed to be disappeared (n=24) or remained (n=5) in the treated side. Conclusion The presence and the grade of HVS were correlated with the stenotic degree of ICA. In the patients with ICA stenosis, HVS was most frequently found in the sulci of temporal lobe and occipital lobe, and seldom found in sylvian fissure. HVS disappeared after CEA indicating that HVS can be considered as a marker for CEA treatment.
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Objective The study aimed to know the mental health state of juvenile delinquents, to provide basis for the early prevention of juvenile delinquency and the rectification of the unhealthy mental state. Methods The 378 juvenile delinquents from Tianjin reformatory were deem to the study group, the 410 14~18 years old high school students were sampled from a common school as the control group. They were assessed and compared with SCL-90. Result The indices of SCL-90 excluding somatic change, interpersonal relationship were higher than that of the domestic routine model (P
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Objective To investigate the detection rate of IAD or IAT and the degree of depression,anxiety and self-conscious-symptoms of IAD or IAT cases in adolescent students,and to analyze the relationship between IA and mental health.Methods 8 694 students from 9 schools in Tianjin by systemic stratified random sampling were investigated on the conditions of internet using and state of psychological and body health with questionnaire designed by ourselves.Result Among the students with internet using,the detection rate of depression was 24.47%.The detection rate of depression in students using internet is 24.47%.IAD,IAT and Non-IA are 32.16%,26.83%,23.17%,respectively.The detection rate of anxiety in students using internet is 3.32%.IAD,IAT and Non-IA are 12.13%,3.72%,2.26% respectively.There was a linear correlation of IA with the degree of depression and anxiety(P