Predicted normal values for maximal respiratory pressures in children

Introduction: Reference equations are used to predict normal values for maximal respiratory pressures. Objectives: To develop predictive equations for maximal respiratory pressure in children. Methods: A total of 144 healthy children, aged between 7 and 11 years, were assessed. Maximal inspiratory and expira-tory pressures were assessed with a digital manovacuometer on top of residual volume and total lung capacity, respectively. Results: The variables sex, age and weight showed association with maximal inspiratory pressure, while maximal expiratory pressure, in addition to the aforementioned variables, also showed association with height. After regression analysis, only sex and age had an influ-ence on the variability of inspiratory and expiratory pressures. Conclusions: The present study provides reference values and proposes two equation models that predict maximal respiratory pressure values among children aged between 7 and 11 years

Effect of Capacitive Radiofrequency on the Fibrosis of Patients with Cellulite

Background. Cellulite is a type of lipodystrophy that develops primarily from an alteration in blood circulation or of the lymphatic system that causes structural changes in subcutaneous adipose tissue, collagen, and adjacent proteoglycans. The radiofrequency devices used for cutaneous applications have shown different physiological treatment effects, but there is controversy about the suitable parameters for this type of treatment. Objectives. The aim of this study was to evaluate the effects of low-temperature radiofrequency to confirm the thinning of the collagen tissue and interlobular septa and consequent improvement of cellulite. Methods. A sample of eight women was used to collect ultrasonographic data with a 12 MHz probe that measured collagen fiber thickness. The Vip Electromedicina (Argentina) device, frequency of 0.55 MHz and active electrode 3.5 cm in diameter (area = 9.61 cm2), was applied to a 10 cm2 region of the gluteal region for 2 minutes per area of active electrode, during 10 biweekly sessions. Results. The Wilcoxon matched paired test was applied using GraphPad InStat 3.01 for Win95-NT software. Pre- and posttreatment mean collagen fiber thickness showed a 24.66% reduction from 1.01 to 0.67 mm. Statistical analysis using the Wilcoxon matched paired test obtained a significant two-tailed P value of 0.0391. Conclusion. It was concluded that the use of more comfortable temperatures favored a reduction in fibrous septum thickness and consequent cellulite improvement, evidenced by the lower degree of severity and decrease in interlobular septal thickness