Oxygen Uptake Rate
Mostrando 1-12 de 277 artigos, teses e dissertações.
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1. Determination of heart rate threshold from heart rate kinetics during maximal graded exercise in soccer players
Resumo O objetivo do presente estudo foi identificar o limiar de frequência cardíaca baseado na cinética da frequência cardíaca durante o exercício máximo graduado em jogadores de futebol. Vinte e seis jogadores de futebol masculino realizaram um teste de exercício máximo (protocolo de Bruce) em uma esteira motorizada. O consumo de oxigênio (VO2) e
Rev. bras. cineantropom. desempenho hum.. Publicado em: 17/10/2019
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2. EFFECTIVENESS OF PHOSPHORUS REMOVAL IN AN SBR USING CO-PRECIPITATION WITH FERRIC CHLORIDE, AND ITS EFFECTS ON MICROBIAL ACTIVITY
Abstract The present study evaluated the phosphorus removal in a Sequencing Batch Reactor (SBR - 2,500L) used to treat the wastewater from an office building in two steps: phase I-Enhanced biological phosphorus removal (EBPR) and phase II-co-precipitation using FeCl3 as precipitant. The raw sewage presented a high organic load variation ranging from 0.11 (ph
Braz. J. Chem. Eng.. Publicado em: 30/09/2019
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3. Effects of Exercise Training on Cardiovascular and Autonomic Parameters in Stroke Survivors: A Systematic Review
Abstract Negative changes in cardiovascular and autonomic variables in stroke survivors have encouraged the global scientific community to focus on investigating therapeutic strategies to mitigate stroke damage. The objective of the present study was to describe the effects of exercise training on cardiovascular and autonomic variables in stroke survivors. W
Int. J. Cardiovasc. Sci.. Publicado em: 12/08/2019
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4. Speed and Grade Increment During Cardiopulmonary Treadmill Testing: Impact on Exercise Prescription
Abstract Background: Maximal oxygen uptake (VO2max) and both first (VT1) and second (VT2) thresholds have been used as reference points for exercise prescription in different populations. Objective: We aimed to test the hypothesis that exercise prescription, based on VTs determined by treadmill cardiopulmonary exercise testing (CPET), is influenced by the
Int. J. Cardiovasc. Sci.. Publicado em: 12/08/2019
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5. Heart rate deflection point as an alternative to determining the anaerobic threshold in dyslipidaemic patients
Abstract Aim: The aim of the present study was to verify the agreement between the ventilatory method (VT) and the alternative method of heart rate deflection point (HRDP) in determining the anaerobic threshold (AT) during incremental treadmill test in dyslipidaemic patients. Methods: Twenty-seven dyslipidaemic patients (61.50 ± 10.46 years) performed an
Motriz: rev. educ. fis.. Publicado em: 25/04/2019
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6. Futsal improve body composition and cardiorespiratory fitness in overweight and obese children. A pilot study
Abstract Aims: The aim of this study was to verify body composition, cardiorespiratory fitness, and biochemical markers of prepubertal overweight and obese boys to a 16-week futsal training program. Methods: Sixteen boys (age: 7-10 y, body mass index>thanat 95th percentileaccording to Center for Disease Control and Prevention; 35.5±7.4 percent fat) part
Motriz: rev. educ. fis.. Publicado em: 02/10/2018
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7. Equações preditivas de frequência cardíaca máxima em crianças e adolescentes atletas: uma revisão sistemática
Resumo Introdução: A frequência cardíaca máxima (FCmáx) é denominada o maior valor de FC alcançada durante um esforço físico intenso. Objetivo: Avaliar a aplicabilidade das equações preditivas de FCmáx durante testes de exercício em crianças e adolescentes atletas. Métodos: Trata-se de uma revisão sistemática, através do Scopus, Pubmed
Fisioter. mov.. Publicado em: 09/08/2018
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8. A practical approach to assess leg muscle oxygenation during ramp-incremental cycle ergometry in heart failure
Heart failure is characterized by the inability of the cardiovascular system to maintain oxygen (O2) delivery (i.e., muscle blood flow in non-hypoxemic patients) to meet O2 demands. The resulting increase in fractional O2 extraction can be non-invasively tracked by deoxygenated hemoglobin concentration (deoxi-Hb) as measured by near-infrared spectroscopy (NI
Braz J Med Biol Res. Publicado em: 02/10/2017
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9. Oxidative stress and skeletal muscle dysfunction are present in healthy smokers
Chronic exposure to cigarette smoke seems to be related to an increase of pro-inflammatory cytokines, oxidative stress and changes in muscular and physical performances of healthy smokers. However, these parameters have not yet been evaluated simultaneously in previous studies. The participants of this study were healthy males divided into two groups: smoker
Braz J Med Biol Res. Publicado em: 24/10/2016
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10. Heart rate as an indicator for exercise prescription for normal, overweight, and obese adolescents
Abstract This study aimed to investigate the relationship between heart rate (HR) predicted and VO2max using a CPET (cardiopulmonary exercise testing) among normal weight, overweight, and obese adolescents. The sample comprised 299 adolescents (142 boys), from Vitória (ES, Brazil), aged 10-14 years (12.6±1.4). Adolescents were classified into normal weight
Motriz: rev. educ. fis.. Publicado em: 2016-06
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11. Evaluation of energy expenditure in forward and backward movements performed by soccer referees
The aim of this study was to measure the energy expenditure for locomotor activities usually performed by soccer referees during a match (walking, jogging, and running) under laboratory conditions, and to compare forward with backward movements. The sample was composed by 10 male soccer referees, age 29±7.8 years, body mass 77.5±6.2 kg, stature 1.78±0.07
Braz J Med Biol Res. Publicado em: 12/04/2016
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12. Intensity and physiological responses to the 6-minute walk test in middle-aged and older adults: a comparison with cardiopulmonary exercise testing
The 6-minute walk test (6MWT) is a simple field test that is widely used in clinical settings to assess functional exercise capacity. However, studies with healthy subjects are scarce. We hypothesized that the 6MWT might be useful to assess exercise capacity in healthy subjects. The purpose of this study was to evaluate 6MWT intensity in middle-aged and olde
Braz J Med Biol Res. Publicado em: 24/02/2015