Silvio Rodrigues Marques-Neto

Universidade Salgado de Oliveira · Ciências da Atividade Física

A presente pesquisa tem como objetivo apresentar uma discussão teórica acerca da síndrome do overtraining e suas possíveis correlações com o transtorno dismórfico corporal, conhecido também como vigorexia ou síndrome de adônis, em alunos praticantes da modalidade de cross-training. É perceptível que o excesso de atividade física, sem o devido acomp...

We aimed to investigate whether personal record (PR), anthropometric variables and experience would adequately explain variations in Clean and Jerk(C&J) strength endurance performance. 30 Crossfit® competing (CF) participants were recruited in stages. The 1st visit consisted of a bioimpedance analysis and familiarization with effort regulation agai...

RESUMO Introdução: A inatividade física é fator de risco para inúmeras doenças e, paradoxalmente, também pode ser fator de risco para sintomas da síndrome do overtraining (SOT). Objetivo: Os objetivos deste estudo foram avaliar os níveis de atividade física de militares e comparar esses níveis com os sintomas da SOT. Métodos: A amostra consistiu de...

O objetivo deste estudo foi comparar o nível de aptidão física de praticantes de treinamento de força (TF) e fitness funcional (FF). Participaram do estudo 22 homens (TF: 31,00 ± 3,77 anos; 84,30 ± 12,79 kg; 1,76 ± 0,09 m; IMC: 26,99 ± 2,55; FF: 30,00 ± 5,93 anos; 84,24 ± 10,44 kg; 1,75 ± 0,05 m; IMC: 26,66 ± 2,27), com pelo menos um ano de experiê...

Controlling training loads is important to obtain results and avoid overtraining in athletes. In CrossTraining, subjective perception of effort (PSE) has been cited as an important parameter for load control, however, little is known about the contribution of physiological parameters. The objective of this study was to investigate the correlations...

Background and Aims: The chronic inflammatory process in the adipose tissue during obesity suggests constant polarization of classically activated macrophages (M1) and low polarization of alternately activated ones (M2). Since irisin has anti-inflammatory and antidiabetogenic properties our aim is to evaluate its effects on macrophage polarization...

Diversas modalidades do treinamento intervalado de alta intensidade (HIIT) são desenvolvidas de forma empírica, sem o devido aprofundamento técnico sobre suas repercussões cardiovasculares e metabólicas. O objetivo deste estudo foi comparar possíveis alterações cardiovasculares e metabólicas agudas entre duas modalidades que abordam o HIIT como bas...

O objetivo deste estudo foi comparar e correlacionar o adipômetro CESCORF com o ultrassom modo A BodyMetrix ™ BX2000 na espessura das dobras cutâneas e determinação da composição corporal. Um grupo de 132 participantes, 89 homens e 43 mulheres participou do estudo, eles passaram por uma anamnese, preencheram o PAR-Q e o termo de consentimento livre...

The aim of the present study was to evaluate the effects of acute β-alanine supplementation on the rate of perceived exertion, training impulse and heart rate variability during high intensity functional training. Twelve trained men (age: 22.0 ± 5.0 years old; body mass index: 23.6 ± 4.2 Kg/m2; fat mass: 9.8 ± 2.3; VO2max: 54.0 ± 4.5 mL/kg/min) par...

In this study, we sought to determine the prevalence of musculoskeletal injuries, perceived pain, and physical activity level among Brazilian practitioners of strength training (ST) and functional fitness (FF). Participants were 311 men and women who trained in 10 FF training centers and seven ST gyms. Each participant completed surveys of the prev...

In this study, we sought to determine the prevalence of musculoskeletal injuries, perceived pain, and physical activity level among Brazilian practitioners of strength training (ST) and functional fitness (FF). Three hundred and eleven men and women participated in the investigation across 10 FF training centers and 7 ST gyms. Each participant comp...

The purpose of this study was to investigate the effects of the foam rolling technique and static stretching on perceptual and neuromuscular parameters following a bout of high-intensity functional training (HIFT), which consisted of 100 pull-ups, 100 push-ups, 100 sit-ups, and 100 air squats (Angie benchmark) in recreationally trained men (n = 39)...

Background: Physical activity (PA) and physical fitness are key factors for quality of life (QoL) for older women. The aging process promotes the decrease in some capacities such as strength, which affect the activities of daily life. This loss of strength leads to a reduction in balance and an increased risk of falls as well as a sedentary lifest...

New findings: What is the central question of this study? It is recognized that 3,5-diiodothyronine (3,5-T2) administration increases resting metabolic rate, prevents or treats liver steatosis in rodent models and ameliorates insulin resistance, suggesting 3,5-T2 as a potential therapeutic tool. However, a comprehensive assessment of cardiac elect...

Objective The objective of this study is to assess the association between type 2 diabetes (T2D) and cardiorespiratory fitness (CRF) estimated through a non-exercise model in a large representative group of Brazilian adults. Study design The study design of this study is a cross-sectional population-based study. Methods The presence of T2D was as...

Background and aims Mitochondrial swelling is involved in the pathogenesis of many human diseases associated with oxidative stress including obesity. One of the strategies for prevention of deleterious effects related to obesity and overweight is engaging in regular physical activity, of which high intensity interval training (HIIT) is efficient in...

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Rodrigues, GM, Paixão, A, Arruda, T, de Oliveira, BRR, Maranhão Neto, GA, Marques Neto, SR, Lattari, E, and Machado, S. Anodal transcranial direct current stimulation increases muscular strength and reduces pain perception in women with patellofemoral pain. J Strength Cond Res XX(X): 000-000, 2020-The purpose of this study is to investigate the eff...

The main of the present study was to identify the heart rate threshold based on heart rate kinetics during graded maximal exercise in football players. Twenty-six male football players performed a maximal exercise test (Bruce protocol) on a motor-driven treadmill. Oxygen uptake (VO2) and heart rate (HR) were monitored, recorded and resampled at 3.5...

The main of the present study was to identify the heart rate threshold based on heart rate kinetics during graded maximal exercise in football players. Twenty-six male football players performed a maximal exercise test (Bruce protocol) on a motor-driven treadmill. Oxygen uptake (VO 2) and heart rate (HR) were monitored, recorded and resampled at 3....

In the last few decades exercise has been explored as a potential tool to reduce symptoms experienced by patients with panic disorder (PD). This review aims to present the effects of exercise interventions on panic severity, and anxiety symptoms of patients with PD. A literature search was conducted using PubMeb and ISI Web of Science databases, wi...

Diferentemente de outras variáveis mais comuns relacionadas à saúde, a aptidão cardiorrespiratória (ACR) não é medida constantemente na população em geral. Sua omissão caracteriza numa perda de informação relevante. Com isso os objetivos do presente estudo foram: a) caracterizar a ACR da população brasileira de 20 a 59 anos, desenvolvendo valores n...

En las últimas décadas, diversos estudios vienen investigando la dosis-respuesta ideal en cuanto a la frecuencia, intensidad y volumen de entrenamiento para alcanzar el aumento de fuerza muscular, sea en atletas y no atletas. La dosis-respuesta es fundamental para la prescripción de entrenamiento, ya que su manipulación equivocada puede llevar a un...

The objective of the present study was to investigate the effects of different electrode assemblies and electric current polarity on the ROM of the hip and pain perception. Ten healthy male, sedentary, right-leg-dominant, and aged between 19 and 30 years (24.0 ± 4.0 years) subjects were recruited. For the experimental conditions, the application of...

The aim of this study was to investigate the acute effects of transcranial direct current stimulation (tDCS) associated with caffeine intake on muscular strength and ratings of perceived exertion (RPE). Fifteen healthy young males recreationally trained (age: 25.3 ± 3.2 years, body mass: 78.0 ± 6.9 kg, height: 174.1 ± 6.1 cm) were recruited. The ex...

Unlike other more common health-related variables, cardiorespiratory fitness (CRF) is not frequently measured in the general population. This omission characterizes a loss of relevant information. Thus, the objectives of the present study were: a) to characterize the CRF of the Brazilian population aged 20 to 59 years and to develop normative value...

Previous studies investigating the effects of transcranial direct current stimulation (tDCS) on muscle strength showed no consensus. Therefore, the purpose of this article was to systematically review the literature on the effects of single dose tDCS to improve muscle strength. A systematic literature search was conducted on PubMeb, ISI Web of Scie...

Background and aims: Obesity promotes a persistent inflammatory process in the adipose tissue, activating the endothelium and leading to vascular dysfunction. Preadipocytes can interact with endothelial cells in a paracrine way stimulating angiogenesis. However, the potential of preadipocytes from adipose tissue of high fat diet (HFD) fed animal t...

International Journal of Exercise Science 11(2): 55-67, 2018. This study compared the effect of a strength training session performed at different exercise orders and rest intervals on blood pressure and heart rate variability (HRV). Fifteen trained men performed different upper body exercise sequences [large to small muscle mass (SEQA) and small t...

Cardiorespiratory fitness (CRF) is associated with several health outcomes. Some non-exercise equations are available for CRF estimation. However, little is known about the validation of these equations among elderly. The aim of this study was to exam the validity of non-exercise equations with self-reported information in elderly. Participants (n=...

BACKGROUND: Endothelial dysfunction and low-grade inflammation are both positively associated to states of excessive adiposity but reports on the acute effects of resistance exercise on these variables are still lacking. We evaluated these acute effects of resistance exercise on vascular reactivity and on the inflammatory profile in young women. M...

Purpose: Handgrip strength is an important variable to assess as part of any health intervention among older adults. Although the use of allometric normalization is the appropriate approach for removing the body size effect in handgrip performance, the best body size variable for this normalization is still unclear. Therefore, the aim of the prese...

Background and aims: Obesity promotes cardiac and cerebral microcirculatory dysfunction that could be improved by incretin-based therapies. However, the effects of this class of compounds on neuro-cardiovascular system damage induced by high fat diet remain unclear. The aim of this study was to investigate the effects of incretin-based therapies o...

Purpose: Cardiac autonomic dysfunction (CADysf) in children is often associated to obesity and may be attenuated by physical activity. In this study, we investigated the effects of resistance training (RT) upon CADysf assessed by heart rate variability (HRV) in obese adolescents. Method: Volunteers were assigned into groups according to standard...

Myocardial tolerance to ischaemia/reperfusion (I/R) injury is improved by exercise training, but this cardioprotection is impaired by the chronic use of anabolic androgenic steroids (AAS). The present study evaluated whether blockade of angiotensin II receptor (AT1-R) with losartan and aldosterone receptor (mineralocorticoid receptor, MR) with spir...

Aim: This study aimed to evaluate the combined effects of exercise and antagonists of the angiotensin II and aldosterone receptors on cardiac autonomic regulation and ventricular repolarization in rats chronically treated with nandrolone decanoate (ND), a synthetic androgen. Methods: Thirty male Wistar rats were divided into six groups: sedentar...

This study aimed to evaluate if androgenic-anabolic steroids (AAS) abuse may induce cardiac autonomic dysfunction in recreational trained subjects. Twenty-two men were volunteered for the study. The AAS group (n = 11) utilized AAS at mean dosage of 410 ± 78.6 mg/week. All of them were submitted to submaximal exercise testing using an Astrand-Rhymin...

Many studies have used the heart rate deflection points (HRDP) during incremental exercise tests, because of their strong correlation with the anaerobic threshold (AT). The aim of this study was to evaluate the profile of the heart rate deflection points identified by a computerized method and compare it to ventilatory and lactate thresholds. Twent...

was higher in the NRG (p 0.70 was the more accurate RT-MCE value to predict LV regional recovery with positive predictive value of 70% and negative predictive value of 56% (p<0.05). Conclusion: RT-MCE is valuable for predicting recovery of LV function after reperfused AMI.

Purpose: Experimental studies showed that local capture of atrial fibrillation (AF) by rapid pacing was possible in humans. However, contradictory observations were reported on its effect at distant atrial sites. The present model-based study investigated the effect of rapid pacing on the paced and the non-paced atria. Methods: A biophysical model...

The aim of the present study was to analyze the electric activity of the vastus medialis (VM) and vastus lateralis (VL) in two differing angles (70° and 90° of knee flexion) during maximum voluntary contraction in squat exercise. Fifteen male subjects composed the sample of the study. As criteria they were untrained for more than 12 months (age of...

The aim of the present study was to analyze the electric activity of the vastus medialis (VM) and vastus lateralis (VL) in two differing angles (70° and 90° of knee flexion) during maximum voluntary contraction in squat exercise. Fifteen male subjects composed the sample of the study. As criteria they were untrained for more than 12 months (age of...

Poster ”Analysis of atrial electrograms in His and coronary sinus recordings can identify the chamber of origin of focal atrial tachycardias”

Background: During progressive exercise, decreased heart rate variability (HRV) is described, with post- exercise HRV behavior seeming to depend on variables such as duration, type and intensity of the stimulus. Objective: To investigate and compare autonomic c a r d i a c m o d u l a t i o n i n a t h l e t e s a n d t r a i n e d individuals. Met...

Background: Due to assorted variables related to resistance training, its effects on autonomic cardiac control are still unknown. Objective: To ascertain the acute effects of different strength training intensities − 6 and 12 maximum repetitions (6MR and 12MR) − on the autonomic cardiac system during six resistance exercises. Methods: Ten male volu...