Background: The General Adaptation Syndrome and the supercompensation Model are concepts widely applied in exercise science. Considering that fat is essential for tissue and the main energy source during continuous moderate-intensity exercise (MICE), the hypothesis arises that this type of effort may pay off after a detraining period.
Objective: This study aimed to investigate how different exercise models, followed by a period of detraining, affected adipose tissue cellularity in adult rats.
The primary aim of the present investigation was to compare the acute physiological and perceptual responses between two modes of interval training using a randomized crossover design. More specifically, eleven young adult participants (23 ± 4 years, 77 ± 13 kg, 178 ± 7 cm) performed two protocols: one composed of whole-body calisthenics exercises and another on a cycle ergometer. Both protocols encompassed eight 20 s bouts at intensities equivalent to all-out (HIIT-WB) and 170% of the maximal power output (HIIT-C), respectively, interspersed with 10 s of passive rest.
View Article and Find Full Text PDFThe aim of the present study was to investigate the effects of acute caffeine supplementation on the performance during a session of resistance training alone (RT) or in combination with aerobic training (i.e. concurrent training; CT).
View Article and Find Full Text PDFIntroduction: The mortality rate in patients on maintenance hemodialysis (HD) is high and is associated with low functional capacity (FC). We analyzed the association of FC and COVID-19 lethality among HD patients.
Methods: A cohort study that included evaluations of FC in patients on HD was underway, and the association between FC and lethality was included as an ad-hoc outcome.
The study aimed to investigate the effect of intradialytic exercise training programmes on the submaximal functional capacity of patients with kidney failure. We searched for randomized clinical trials that assessed submaximal functional capacity using the 6-min walk test (6 MWT) in adult patients on maintenance haemodialysis submitted to intradialytic physical training. The search was performed on 15 October 2021, in different databases.
View Article and Find Full Text PDFTissues usually super compensate during the period that follow physical exercise. Although this is widely accepted for muscle and glycogen, the compensatory effect is not usually applied to fat tissues. Notwithstanding, evidence for this has been present since the 1970s when it was first suggested that the increased lipogenic activity in response to training might be an adaptation that enables to restore an energy reserve that can be used in times of need.
View Article and Find Full Text PDFObjective: To describe a systematic review and meta-analysis to identify if intradialytic exercise improves the removal of solutes and the hemodialysis adequacy.
Data Sources: A systematic review and meta-analysis of randomized controlled trials (RCTs) were performed. The sources were MEDLINE (via PubMed), Web of Science, LILACS, and SciELO, from inception until July 2018.
Chronic kidney disease (CKD) is associated with physical weakness and increased oxidative stress and inflammation levels. Rehabilitation programs are associated with an improvement in the functional capacity, inflammatory and oxidative stress profile. Exercise associated with blood flow restriction (BFR) has been demonstrating positive effects in training programs, but there is lack information about exercise with BFR in CKD.
View Article and Find Full Text PDFThe measure of hemodialysis (HD) adequacy recommended nowadays by most guidelines, Kt/V-urea, presents significant drawbacks. Direct dialysis quantification (DDQ) through total dialysate collection (TDC), considered the gold standard measure of HD adequacy, is cumbersome, which precludes its widespread use in clinical practice. The present study aims to validate a low-volume continuous sampling of spent dialysate (CSSD).
View Article and Find Full Text PDFBackground And Purpose: This study aims to compare the effects of combined resistance and aerobic exercise with a resistance programme alone on functional performance among haemodialysis patients.
Design: The design was a randomized controlled trial.
Setting: The setting was the dialysis unit of a Brazilian university hospital.
Context And Objective: Preeclampsia is a multi-systemic disease and one of the most frequent severe health problems during pregnancy. Binding of insulin triggers phosphorylation and activates cytoplasmic substrates such as phosphatidylinositol 3 kinase (PI3K). Phosphorylation of membrane phosphoinositide 2 (PIP2) to phosphoinositide 3 (PIP3) by PI3K starts Akt/PKB activation.
View Article and Find Full Text PDFUnlabelled: Preeclampsia (PE) is a significant cause of fetal and maternal mortality around the world and there is evidence that insulin resistance has been implicated in the pathophysiology of PE. The Akt/PKB pathway is stimulated by insulin and performs several vital functions relative to growth, survival and cellular metabolism.
Objective: To investigate the basal expression of Akt/PKB, HSP90 expression, proteins that regulate Akt/PKB activity and substrate in the placenta, skeletal muscle and adipocytes of normal and PE parturient.
Eur J Obstet Gynecol Reprod Biol
November 2005
Background: Uterine leiomyomas are the commonest tumors of the genital tract. Growth factors seem to be implicated in the development of leiomyoma.
Objective: To determine the insulin receptor (IR) tyrosine kinase activity--phosphorylation of exogenous substrate poly(Glu 4: Tyr 1)--and insulin receptor substrate 1 expression in normal myometrium and leiomyoma.