Acute Effect of Different Duration of Foam Rolling Protocols on Muscle Thickness, Pain Pressure Threshold, and Volume Load on Multiple Sets of Knee Extension.

Previous studies investigated the effects of foam rolling (FR) on measurements of strength and power. However, the acute effect of FR on muscle thickness (MT) and pressure pain threshold (PPT) after multiple sets of resistance exercise remains to be elucidated. The aim of the present study was to examine the effect of one and three minutes of quadriceps FR on muscle thickness (vastus lateralis [VL] and rectus femoris [RF]), pain threshold (VL and RF), and total load lifted (TLL) on multiple sets of knee extension. Nine resistance-trained men (age: 24.8 ± 5.2 years; height: 177 ± 7 cm; total body mass 77.7 ± 6.2 kg) participated the study. MT, PPT, and performance on multiple sets of knee extension were compared after performing passive recovery (CON), one minute (FR1), or three minutes of FR (FR3). A similar total training load among experimental conditions was observed. There was a greater increase on VL muscle thickness after FR3 when compared to CON and FR1. In addition, there was an increase on rectus femoris PPT two minutes post FR3, with no differences between conditions. These results indicate that longer duration FR-protocol may acutely increase muscle thickness of the vastus lateralis muscle without negatively affect the TLL and PTT.

Excess Post-Exercise Oxygen Consumption and Substrate Oxidation Following High-Intensity Interval Training: Effects of Recovery Manipulation.

The recovery manipulation during high-intensity interval training (HIIT) may have the potential to modulate the responses of post-exercise energy metabolism. The purpose of this study was to investigate how the type (i.e., passive and active) and duration (i.e., short and long) of the recovery between the intervals in HIIT affect the excess post-exercise oxygen consumption (EPOC) and oxidation of fats and carbohydrates during the post-exercise recovery. Eight physically active men performed a maximal incremental test, to determine the peak oxygen consumption (V̇O2peak) and the first ventilatory threshold (VT), and four HIIT exercise sessions on a treadmill. The HIIT exercise sessions consisted of 5 intervals interspersed with 4 recovery periods; each interval was sustained until exhaustion, and the intensity was set at the V̇O2peak velocity; recoveries were passive, active (VT velocity), short (2-min), or long (8-min). The HIIT exercise sessions were performed in a random and crossed manner. After the HIIT exercise sessions, EPOC and oxidation of fats and carbohydrates were measured during the 120-min of post-exercise recovery. There were no differences in the EPOC among the exercise sessions (p = 0.56). There were no differences among the exercise sessions in the amount of energy expended on the oxidation of fats (p = 0.78) and carbohydrates (p = 0.91) during the post-exercise recovery. The recovery manipulation during HIIT does not affect the EPOC and post-exercise fat and carbohydrate oxidation. One can choose the type and duration of recovery, knowing that the post-exercise substrate oxidation and EPOC responses will be preserved.

Consideraçöes a respeito da cistite eosinofílica / Eosinophilic cystitis

Eosinophilic cystitis is a rare bladder disorder that was first reported in 1960 and can be diagnosed in children or adults. Its cause is unknown and usually presents with hematuria, supra pubic pain, sysuria and frequency. We have made an extensive literature review and we reported on 2 illustrative cases. The first case was a man presented with hematuria; a computed tomography, shown expansive process with a mass suggesting infiltration of the perivesical tissues. A biopsy was done and the pathological diagnosis was eosinophilic cystitis. The patient was treated with steroids. Later on, he had an episode of hematuria on the left ureteral orifice and a nephrouretectomy showed grade 2 urothelial carcinoma of the ureter. The second case is a child with neurogenic bladder due to myelomeningocele who had a cystostomy since the age of 5 months. Surgery was performed, including partial cystectomy with an ileal neobladder. The anatomopathological diagnosis was eosinophilic cystitis. The different classifications of eosinophilic cystitis were presented and discussed. The diagnosis of this entity can only be made by microscopic examination which shows mucosal edema or fibrosis, a polymorphous infiltrate rich in eosinophils and sometimes replacement of the bladder muscle by fibrotic tissue