Ronaldo Vagner Thomatieli dos Santos

ORCID: 0000-0001-7010-2799
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About
Contact & Profiles
Research Areas
  • Exercise and Physiological Responses
  • Muscle metabolism and nutrition
  • Adipose Tissue and Metabolism
  • High Altitude and Hypoxia
  • Cardiovascular and exercise physiology
  • Diet and metabolism studies
  • Adipokines, Inflammation, and Metabolic Diseases
  • Sports Performance and Training
  • Sleep and related disorders
  • Obesity, Physical Activity, Diet
  • Heart Rate Variability and Autonomic Control
  • Circadian rhythm and melatonin
  • Nutrition and Health in Aging
  • Chemotherapy-induced cardiotoxicity and mitigation
  • Regulation of Appetite and Obesity
  • Physical Activity and Health
  • Dietary Effects on Health
  • Eating Disorders and Behaviors
  • Neuroscience of respiration and sleep
  • Sports injuries and prevention
  • Spinal Cord Injury Research
  • COVID-19 and Mental Health
  • Sleep and Wakefulness Research
  • Obstructive Sleep Apnea Research
  • Cardiovascular and Diving-Related Complications

Universidade Federal de São Paulo
2016-2025

Universidade São Judas Tadeu
2025

Fundação de Apoio à Universidade Federal de São Paulo
1970-2024

Ashford and St Peter's Hospitals NHS Foundation Trust
2023

Polytechnic Institute of Coimbra
2019

Centro de Estudos em Psicologia da Saúde
2009-2017

Fundação de Amparo à Pesquisa do Estado de São Paulo
2017

National Council for Scientific and Technological Development
2017

Universidade Federal de Minas Gerais
2015

Universidad Central "Marta Abreu" de las Villas (UCLV)
2013

Purpose: The purpose of this study was to assess the impact 24 wk resistance training at two different intensities on cognitive functions in elderly. Methods: Sixty-two elderly individuals were randomly assigned three groups: CONTROL (N = 23), experimental moderate (EMODERATE; N 19), and high (EHIGH; 20). volunteers assessed physical, hemodynamic, cognitive, mood parameters before after program. Results: On 1 RM test (P < 0.001), groups performed better than group, but they did not show...

10.1249/mss.0b013e318060111f article EN Medicine & Science in Sports & Exercise 2007-08-01

Abstract This work evaluated the importance of sleep on mood and cognition after 24 h exposure to hypoxia. Ten males, aged 23–30 years, were placed in a normobaric chamber simulating an altitude 4,500 m. Sleep assessments conducted from 22:00–6:00; all cognitive performed 20 min awakening. The normoxic conditions was reevaluated 14 start hypoxic conditions, state functions conditions. Hypoxia reduced total time, efficiency, slow‐wave sleep, rapid eye movement. Depressive mood, anger, fatigue...

10.1111/j.1469-8986.2012.01411.x article EN Psychophysiology 2012-07-16

Abstract Background Cancer is considered the second leading cause of death in world, and for treatment this disease, pharmacological intervention strategies are frequently based on chemotherapy. Doxorubicin (DOX) one most widely used chemotherapeutic agents clinical practice treating a number solid tumours. The with DOX mimics some effects cancer cachexia, such as anorexia, asthenia, decreases fat skeletal muscle mass fatigue. We observed that increased systemic insulin resistance caused...

10.1002/jcsm.12104 article EN cc-by-nc-nd Journal of Cachexia Sarcopenia and Muscle 2016-02-15

O exercício e o treinamento físico são conhecidos por promover diversas alterações, incluindo benefícios cardiorrespiratórios, aumento da densidade mineral óssea diminuição do risco de doenças crônico-degenerativas. Recentemente outro aspecto tem ganhando notoriedade: trata-se melhoria na função cognitiva. Embora haja grande controvérsia, diversos estudos têm demonstrado que melhora protege a cerebral, sugerindo pessoas fisicamente ativas apresentam menor serem acometidas desordens mentais...

10.1590/s1517-86922006000200011 article PT Revista Brasileira de Medicina do Esporte 2006-04-01

Aging causes several physiological alterations, including alterations in sleep. It is possible that difficulty sleeping can be exacerbated by increased inflammation older individuals. Moderate exercise training may a modality of non-pharmacological treatment for sleep disorders and inflammation. We aimed to assess the effects moderate on elderly people as well their cytokine profiles. Additionally, we examined effect quality life parameters using SF-36 questionnaire. Twenty-two male,...

10.1016/j.cyto.2012.07.028 article EN publisher-specific-oa Cytokine 2012-08-20

A sedentary lifestyle increases the risk of developing cardiovascular disease, obesity, and diabetes. This phenomenon is supported by recent studies suggesting a chronic, low-grade inflammation status. Endotoxin derived from gut flora may be key to development stimulating secretion inflammatory factors. study aimed examine plasma markers endotoxin levels in individuals with and/or highly trained subjects at rest. Methods: Fourteen male (sedentary n = 7; 7) were recruited. Blood samples...

10.1186/1476-511x-9-82 article EN cc-by Lipids in Health and Disease 2010-08-04

The aim of this study was to evaluate the effects moderate aerobic exercise training on sleep, depression, cortisol, and markers immune function in patients with chronic primary insomnia. Twenty-one sedentary participants (16 women aged 44.7 ± 9 years) insomnia completed a 4-month intervention exercise. Compared baseline, polysomnographic data showed improvements following training. Also observed were reductions depression symptoms plasma cortisol. Immunologic assays revealed significant...

10.1155/2014/498961 article EN BioMed Research International 2014-01-01

β-Hydroxy-β-methylbutyrate (HMβ) supplementation is used to treat cancer, sepsis and exercise-induced muscle damage. However, its effects on animal human health the consequences of this treatment in other tissues (e.g., fat liver) have not been examined. The purpose study was evaluate HMβ skeletal hypertrophy expression proteins involved insulin signalling. Rats were treated with (320 mg/kg body weight) or saline for one month. signalling evaluated by western blotting, hormonal...

10.1186/1743-7075-8-11 article EN cc-by Nutrition & Metabolism 2011-01-01

Football teams usually adopt different offensive playing styles to increase the probability of success. However, strategy adopted can influence match-running performance. This study aimed verify relationship between key indicators performance and match running in FIFA Women´s World Cup 2023 (2023-WC). Thirteen were collected from 64 matches (from 32 national teams) with a multi-camera optical tracking system (TRACAB Gen5, ChyronHego). Possession, line breaks completed, receptions final third...

10.1080/24748668.2024.2335460 article EN cc-by International Journal of Performance Analysis in Sport 2024-03-27

Introduction: The purpose of this study was to investigate the ideal training load be applied during periods fixture congestion ensure an adequate dose-response effect for performance maintenance. Methods: Match data and corresponding pre-match sessions (both N = 498 match cases training-block session cases) were collected (with catapult system, VECTOR7) from 36 male professional soccer players (23.5 ± 5.2 years; 178 4 cm; 75.5 6.0 kg) belonging Brazilian First Division team 2022 season....

10.3389/fphys.2024.1341791 article EN cc-by Frontiers in Physiology 2024-03-05

Abstract Aging and physical inactivity are two factors that favors the development of cardiovascular disease, metabolic syndrome, obesity, diabetes, sleep dysfunction. In contrast, adoption a habitual moderate exercise may present non-pharmacological treatment alternative for disorders. We aimed to assess effects training on quality profile elderly people with sedentary lifestyle. Fourteen male sedentary, healthy, volunteers performed 60 minutes/day, 3 days/week 24 wk at work rate equivalent...

10.1186/1476-511x-10-113 article EN cc-by Lipids in Health and Disease 2011-07-06

Abstract Purpose The relationship between inflammatory markers and energetic metabolism has been explored. However, the exercise intensity fitness status is unclear, it necessary to understand this apply specific guidance. purpose of study was analyze metabolic responses imposed by acute sessions performed at moderate, heavy, severe intensities their with physical status. Methods Nineteen healthy male volunteers three until exhaustion or up 60 minutes on a cycle ergometer moderate (90% first...

10.1002/jcb.27810 article EN Journal of Cellular Biochemistry 2018-10-15

White adipose tissue (WAT) plays a fundamental role in maintaining energy balance and important endocrine functions. The loss of WAT modifies adipokine secretion disrupts homeostasis, potentially leading to severe metabolic effects reduced quality life. Doxorubicin is chemotherapeutic agent used clinically because its good effectiveness against various types cancer. However, doxorubicin has deleterious many healthy tissues, including WAT, liver, skeletal cardiac muscles. Our objective was...

10.1371/journal.pone.0151548 article EN cc-by PLoS ONE 2016-03-25

Exercise under hypoxic conditions represents an additional stress in relation to exercise normoxia. Hypoxia induces oxidative and inflammation as mediated through tumour necrosis factor (TNF)-α release that might be exacerbated exercise. In addition, vitamin E supplementation attenuate resulting from hypoxia during The present study aimed evaluate the effects of (250 mg) on inflammatory parameters cellular damage after simulating altitude 4200 m.Nine volunteers performed three sessions 60...

10.1111/jhn.12361 article EN Journal of Human Nutrition and Dietetics 2016-04-08

Abstract Probiotic supplementation arises as playing an immune-stimulatory role. High-intensity and -volume exercise can inhibit immune cell function, which threatens athletic performance recovery. We hypothesized that 30 days of probiotic could stabilize the system athletes preventing suppression after a marathon race. Twenty-seven male marathonists were double-blinded randomly into ( Bifidobacterium-animalis-subsp.-Lactis (10 × 10 9 ) Lactobacillus-Acidophilus + 5 g maltodextrin) placebo...

10.1038/s41598-020-75464-0 article EN cc-by Scientific Reports 2020-11-02
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