A5036846783- Exercise and Physiological Responses
- Spaceflight effects on biology
- Adipose Tissue and Metabolism
- Cardiovascular and exercise physiology
- Sports Performance and Training
- Thermoregulation and physiological responses
- Adipokines, Inflammation, and Metabolic Diseases
- High Altitude and Hypoxia
- Cardiovascular Effects of Exercise
- Physical Activity and Health
- Outdoor and Experiential Education
- Adventure Sports and Sensation Seeking
- Trypanosoma species research and implications
- Climate Change and Health Impacts
- Cardiovascular and Diving-Related Complications
- Heart Rate Variability and Autonomic Control
- Healthcare Regulation
- Coenzyme Q10 studies and effects
- Stroke Rehabilitation and Recovery
- Immune cells in cancer
- Behavioral Health and Interventions
- Neuroscience of respiration and sleep
- Muscle metabolism and nutrition
- Psychological and Temporal Perspectives Research
- Immune Cell Function and Interaction
University of Florida
2024
Universidade Federal de Minas Gerais
2014-2023
Median (Czechia)
2021
Institut des Sciences Biologiques
2021
We evaluated the influence of an Antarctic expedition, consisting 26-day ship travel followed by 24-day camping in field during summer season, on hormonal responses, autonomic cardiac control, and mood states individuals that live tropical regions. Data collection was carried out 10 2nd, 16th, 26th days aboard (characterized exposure to low-luminosity temperature-controlled environments) 4th, 11th, 23rd (prolonged natural luminosity cold environments). Morning samples saliva (to determine...
What is the central question of this study? Clinical studies suggest that obesity 'protects' against osteoporosis. However, these used only bone densitometry and assessed one site, which insufficient to enable conclusions be drawn about response whole skeleton. Furthermore, effects exercise on responses in have not been explored previously. main finding what its importance? We show causes osteopetrosis. Therefore, classical perspective 'protective obesity' needs reviewed, an important tool...
This study examined the effects of precooling on performance and pacing during 30-km cycling exercise in hot temperate environments. 8 trained male cyclists performed 4 trials involving either cooling (PRECTEMP PRECHOT) or no-cooling interventions (TEMP HOT) prior to a self-paced (35°C, 68% relative humidity) environment (24°C, humidity). Exercise time was longer HOT (60.62±3.47 min) than TEMP (58.28±3.30 min; P<0.001), attenuated this thermal strain impairment (PRECHOT 58.28±3.30 P=0.048),...
There is a growing consensus that the balance between persistence of infection and host immune response crucial for chronification Chagas heart disease. Extrapolation chagasic megacolon hampered because research in humans animal models reproduce intestinal pathology lacking. The parasite-host relationship its consequence to disease are not well known. Our model describes temporal changes mice intestine wall throughout infection, parasitism, development megacolon. It also presents primary...
Different methodological approaches have been used to conduct experiments with rats subjected treadmill running. Some experimenters exposed the setup before initiating exercise minimize influences of handling and being placed in an anxiety-inducing environment on physiological responses subsequent Other immediately after placing them treadmill. Thus, present study aimed evaluate effects pre-exercise exposure physical performance cardiovascular thermoregulatory during exercise. Male Wistar...
Physical activity can prevent many organic and mental pathologies. For people living in extreme southern high-latitude environments, weather conditions affect these activities, altering their psychological well-being favoring the prevalence of seasonal sensitivity (SS). This study aims to determine relationships between practice physical activity, high latitudes. A cross-sectional was conducted, using Seasonal Pattern Assessment Questionnaire (SPAQ), applying a scale, determining sports...
Antarctic climate is challenging, since the cold, wind and sensory monotony are stressful stimuli to individuals. Moreover, camp activities heavy clothes may contribute increase physiological strain. Thus, we aimed characterise demand of a 24-day period in field then evaluate effect this expedition on aerobic fitness individuals with heterogeneous initial (as determined by estimating maximum oxygen consumption – V̊O2MAX). Before after Antarctica, 7 researchers 2 mountaineers were subjected...
Isolated, confined, and extreme (ICE) conditions faced in Antarctica can influence immune system inflammatory responses humans. We evaluated the biomarkers serum amyloid A (SAA), transforming growth factor-beta (TGF-β), fatty acid-binding protein 2 (FABP2). Seven expeditioners took part a 7-week Antarctic summer camp (Nelson Island) were at Pre-Camp (i.e., beginning of ship travel), Camp-Initial 4th 5th day camp), Camp-Final 45th – 46th day), Post-Camp (on on return journey). Camping induced...
Obesity is associated with an energy imbalance that results from excessive intake, low diet quality, and a sedentary lifestyle. The increased consumption of high-refined carbohydrate (HC) strongly related to higher adiposity low-grade inflammation. Aerobic training well-known nonpharmacological intervention treat obesity metabolic disturbances. However, the mechanisms through which aerobic ameliorates inflammation induced by HC should be further investigated. Our hypothesis herein was would...
Antarctica is a space-analog ICE (isolated, cold, and extreme) environment. Cardiovascular heart autonomic adjustments are key-adaptive physiological responses to Antarctica, both in summer camps research stations winter-over. Research fieldwork environments imposes limitations such as energy restriction, the need for portable easy-to-handle resources, resistance of materials cold snow/water. Herein, we present methods use cardiac monitoring Antarctic field, equipment currently available,...
Antarctic camps pose psychophysiological challenges related to isolated, confined, and extreme (ICE) conditions, including meals composed of sealed food. ICE conditions can influence the microbiome inflammatory responses. Seven expeditioners took part in a 7-week summer camp (Nelson Island) were evaluated at Pre-Camp (i.e., beginning ship travel), Camp-Initial 4th 5th day camp), Camp-Middle 19th-20th, 33rd-34th days), Camp-Final 45th-46th day), Post-Camp (on ship). At Pre-Camp, Camp-Initial,...
ABSTRACT Introduction: Fatigue due to endurance exercise results from both peripheral and central changes, may influence subsequent performance during a strength task. The increase in serotonin concentration is one of the factors associated with exercise-induced fatigue, particularly hot environments. A nutritional strategy employed reduce serotonergic activation supplementation branched-chain amino acids (BCAA). Objective: To investigate whether BCAA attenuates reduction isometric force...
We evaluated the influence of a 32-day camping in Antarctica on physical performance and exercise-induced thermoregulatory responses. In Brazil, before after Antarctic camping, volunteers performed an incremental exercise at temperate conditions and, two days later, heat stress protocol (45-min running 60% maximum aerobic speed, 31°C relative humidity). Antarctica, core temperature was assessed day fieldwork, average values higher than 38.5°C were reported. At pre- post-Antarctica,...
Antarctic expeditions include isolation and exposure to cold extreme photoperiods (with continuous natural light during summer) that may influence psychophysiological responses modulated by luminosity sleep. We assessed changes in night sleep patterns actigraphy, salivary biomarkers, perceptual variables seven participants the following time points along a 50-day camping expedition Antarctica (Nelson Island): Pre-Field (i.e., on ship before camp), Field-1, Field-2, Field-3, Field-4 (from 1st...
Objective: To study the differences in cardiac autonomic modulation response to muscle fatigue caused by high-intensity exercise during two consecutive competition periods young swimmers. Methods: Twenty-six competitive swimmers, selected their training volume, were separated groups, females (n = 12 [46%], age: 13.5 ± 1.4 years) and males 14 [54%], 13.9 1.7 years), aged between 10 16 years, evaluated five times as follow: (i) 21 days before first (t-0); (ii) (t-1; t-3); (iii) after (t-2;...
Chagasic megacolon is caused by Trypanosoma cruzi, which promotes in several cases, irreversible segmental colonic dilation. This alteration the major anatomic-clinical disorder, characterized enteric nervous system and muscle wall structural damage. Herein, we investigate how T. cruzi -induced progressive changes modulate contractile pattern activity.We developed a murine model of cruzi-infection that reproduced long-term modifications enlarged colon. We evaluated total intestinal transit...
Long-term Antarctic expedition’s studies indicated harmful or positive behavioral and psychophysiological adaptive changes that arise from adversities in isolated, confined, extreme environments. Whereas most of the published focused on overwintering situations, Brazilian Program summer expeditions consist short-term stays. We evaluated influence a permanence (13-day) camp hormonal responses mood states eight volunteers. Data collection was carried out at beginning (initial measure, days 3...