Acute Changes in Interleukin-6 Level During Four Days of Long-Distance Walking.

Background: Interleukin 6 (IL-6) has an inflammatory effect, and its concentration in serum increases during exercise. However, no studies have assessed acute changes in IL-6 concentration after consecutive days of extreme and long-term exercise.

Objective: This study aimed to assess acute changes in serum IL-6 concentration during four days of long-distance walking.

Effect of a home-based exercise program on functional mobility and quality of life in elderly people: protocol of a single-blind, randomized controlled trial.

Background: Elderly people have high rates of functional decline, which compromises independence, self-confidence, and quality of life (QoL). Physical exercise leads to significant improvements in strength, balance, functional mobility, and QoL, but there is still reduced access to this therapeutic strategy due to difficulties in locomotion to training centers or lack of adaptation to the exercise environment.

Methods/design: The purpose of this clinical trial will be to verify the effect of a progressive and semi-supervised, home-based exercise program on the functional mobility, and in the QoL of sedentary elderly people.

Analysis of Cell Viability and Gene Expression After Continuous Ultrasound Therapy in L929 Fibroblast Cells.

Objective: This study aimed to analyze cell viability and gene expression interleukin 6 and vascular endothelial growth factor after continuous ultrasound therapy of 1 and 3 MHz in L929 fibroblast cells.

Design: The L929 cells were cultivated in 12-well plates and divided into the following five groups: Group 1 (G1), nonirradiated; G2, 0.2 W/cm-1 MHz; G3, 0.

The effect of low-level laser therapy (660 nm) on the gene expression involved in tissue repair.

The effect of low-level laser therapy (LLLT) on the healing of skin lesions has been evaluated in many studies; however, the molecular mechanisms involved in the biostimulatory effects resulting from this treatment need to be better understood. The paper aims to analyze the effects of LLLT (660 nm) at doses of 1 and 5 J/cm on cell viability and expression of vascular endothelial growth factor (VEGF) and interleukin (IL6) genes in L929 fibroblast cells. The dose-response curve was performed with the GaInAlAs (660 nm) laser-treated cells at energy rates of 1 and 5 J/cm.

Pilates increases the isokinetic muscular strength of the knee extensors and flexors in elderly women.

Introduction: Pilates has been shown to be effective for increasing muscle strength in older adults, however, some variables have not yet been explored.

Objective: Investigate the effects of Pilates on the isokinetic muscular strength of the knee extensors and flexors at 60°/s, in elderly women.

Method: Thirty-two women were randomized into two groups: control group (CG, n = 16, age = 64.