Objective: To verify the current cut off points of physical activity intensity for adolescents to assess moderate to vigorous physical activity (MVPA) among overweight or obese adolescents. Methods: The total activity counts, heart rate and steps indicators most commonly used to reflect physical activity intensity were adopted, and a total of 15 MVPA cut off points standards for adolescents were included. Ninety four overweight or obese adolescents were tested for walking and running at 3-7 km/h in a free state, while simultaneously wearing MetaMax 3B gas metabolism analyzer, polar belt and actigraph w-GT3x BT triaxial accelerometer to collect energy consumption and activities count, heart rate and steps. Kappa consistency test and paired χ 2 test were used for statistical analysis. Results: Kappa consistency coefficients (0.27-0.53) <0.60 between all cut off points standards and the "gold standard" and the P <0.01, indicating that the consistency is varied and not strong. In the standard diagnosis of each cut points, low sensitivity (49.11-67.59), high specificity (92.50-97.65), high - LR (0.14-0.52, >0.1) and low DOR (8.26-25.19, <30) indicated high rate of misdiagnosis. Low specificity (36.75-69.41), high sensitivity (84.82-96.36) and low + LR (1.52- 9.83 , <10) indicated a high rate of misdiagnosis; AUC of 0.67-0.80 suggested lower diagnostic performance. Conclusion Existing physical activity intensity cut off points for overweight or obese adolescents were not consistent with MVPA and have low diagnostic capabilities. The following criteria of MVPA for overweight or obese adolescents are supposed.

Humans ; Osteonecrosis ; complications ; diagnosis ; Otitis Externa ; complications ; diagnosis ; Temporomandibular Joint ; pathology

Objective To Explored the relative factors which caused the extubation failure in neurological intensive care unit (NICU).Methods It was a retrospective study.40 cases of patients who met the criteria,were brought into statistical analysis.They were admitted in NICU in Nan Fang Hospital from December 2008 to February 2011.The name,sex,age,diagnosis,respiratory parameters,24 hours discrepancy quantity,sputum,and Glasgow Coma Scale,Full Outline of UnResponsiveness Scale were recorded.SPSS 13.0 was used as statistic software.P ＜ 0.05 was considered statistically significant.Results Both in extubation successful and failure groups,GCS and Four were significantly different (all P ＜ 0.05).Howerer,there were no statistically significant in the other factors.There were significantly differences between GCS and Four in predicting extubation results (P =0.012).Logistic multiple regression showed that Four and GCS grade were predictive factor of extubation failure (P =0.041).Conclusions The result suggests that it is statistically significant to use GCS and Four as factors to predict extubation results.It can be widely used to help medical personnels monitoring the changes of patients'clinical conditions,judging prognosis,and making treatment plan in NICU.Wether other factors would effect the extubation results,more prospective,randomized controlled studies were needed.

Objective To observe the results and side effects of radiotherapy(RT) combined with hyperthermia(HT) for non-small cell lung cancer(NSCLC)with lesion(T) ≥5?cm in diameter.Methods Patients conforming to T≥5?cm or T volume ≥125?cm~3 in the lung and other required eligibilities were given RT and HT.The temperature of HT in the center of Ts was automatically programmed between 43.0℃ and 43.5℃ by a computer.RT dose of D_T60-66?Gy was delivered in 30-33 fractions with in 1 hour after HT.Results From October 2001 to April 2004,30 patients were registered for this study.Among all patients,23 males and 7 female with median age of 61 years(32-81);22 squamous cancer and 8 adenocarcinoma type;6 stage Ⅰb,1 Ⅱb,10 Ⅲa,8 Ⅲb and 5 Ⅳ lesions.The mean volumes of T was 275.45?cm~3(125-900?cm~3).The mean number of HT given was 7.2 times(2-14).The mean irradiation dose was 59.10?Gy(23.96-9.67?Gy).Five out of 30 patients were dropped from this trial due to reasons un-related to acute side effects of RT or HT.None complained of breathlessness or aggravation of respiratory symptom during heating.No change had been observed in blood pressure,pulse or frequency of breath before or after HT,nor was there any hardening of subcutaneous fatty tissue as well as lipid nodules or severer than grade Ⅲ acute irradiation side effects.Complete response was observed in 23%,partial response in 50%,no change or progression in 27%.Loco-regional control rate was 83% with a median of median locoregional duration of 19.2 months.Eleven patients had died,including 2 of hemoptysis.The median survival duration was 19.7 months and 1-year survival rate was 75%.Conclusions Radiotherapy combined with hyperthermia modal can be used for NSCLC with primary lesion≥5?cm as it carries better efficiency and loco-regional control without server side effects.