Time To Exhaustion
Mostrando 13-24 de 122 artigos, teses e dissertações.
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13. Evaluation of maximal lactate steady state in middle-aged hypertensive women
Abstract AIM The aim of this study was to investigate the lactate response in physically inactive hypertensive women submitted to the treadmill maximal lactate steady state (MLSS) protocol. METHODS Twenty-two hypertensive women (40 - 64 years) performed a familiarization period of walking on the treadmill following by one incremental test for estimating th
Motriz: rev. educ. fis.. Publicado em: 21/09/2018
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14. Acute melatonin administration enhances aerobic tolerance: an analysis of biochemical and hematological parameters
Abstract Aims This study is aimed at testing the acute melatonin administration (oral; 6 mg) on aerobic tolerance at cycloergometer and analyzing the consequences on biochemical and hematological parameters. Methods The maximal aerobic capacity intensity (iMAC) at cycloergometer of eleven male healthy men (24.18±3.92 years-old; 87.07±12.48 kg; 1.82±0.05
Motriz: rev. educ. fis.. Publicado em: 17/05/2018
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15. Performance during a strenuous swimming session is associated with high blood lactate: pyruvate ratio and hypoglycemia in fasted rats
The aim of this study was to investigate the effect of lactatemia elevation and glycemia reduction on strenuous swimming performance in fasted rats. Three rats were placed in a swimming tank at the same time. The first rat was removed immediately (control group) and the remaining ones were submitted to a strenuous swimming session. After the second rat was e
Braz J Med Biol Res. Publicado em: 26/03/2018
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16. Effect of pre-exercise carbohydrate availability on fat oxidation and energy expenditure after a high-intensity exercise
The aim of this study was to test the hypothesis that reduced pre-exercise carbohydrate (CHO) availability potentiates fat oxidation after an exhaustive high-intensity exercise bout. Eight physically active men underwent a high-intensity exercise (∼95% V̇O2max) until exhaustion under low or high pre-exercise CHO availability. The protocol to manipulate pr
Braz J Med Biol Res. Publicado em: 26/03/2018
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17. Cardiac protein expression patterns are associated with distinct inborn exercise capacity in non-selectively bred rats
In the present study, we successfully demonstrated for the first time the existence of cardiac proteomic differences between non-selectively bred rats with distinct intrinsic exercise capacities. A proteomic approach based on two-dimensional gel electrophoresis coupled to mass spectrometry was used to study the left ventricle (LV) tissue proteome of rats wit
Braz J Med Biol Res. Publicado em: 11/01/2018
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18. Carbohydrate mouth rinse reduces rating of perceived exertion but does not affect performance and energy systems contribution during a high-intensity exercise
ABSTRACT Aim The study aimed to verify the effect of carbohydrate (CHO) mouth rinse on time to exhaustion, energy systems contribution and rating of perceived exertion (RPE) during a high-intensity exercise. Methods Fourteen men performed an incremental exercise test to determine their maximal oxygen uptake and peak power output (PPO) and two time-to-exhau
Motriz: rev. educ. fis.. Publicado em: 21/12/2017
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19. Effects of a 4-week high-intensity interval training on pacing during 5-km running trial
This study analyzed the influence of a 4-week high-intensity interval training on the pacing strategy adopted by runners during a 5-km running trial. Sixteen male recreational long-distance runners were randomly assigned to a control group (CON, n=8) or a high-intensity interval training group (HIIT, n=8). The HIIT group performed high-intensity interval-tra
Braz J Med Biol Res. Publicado em: 19/10/2017
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20. Burnout syndrome and abdominal adiposity among Primary Health Care nursing professionals
Abstract Background Accumulation of abdominal adiposity (AA) constitutes a risk factor for heart and coronary diseases and for metabolic complications. Research suggests that stress is related to adipogenesis. The burnout syndrome (BS) is linked to stress due to the chronicity of work stress. The objective of this study is to estimate the association betwe
Psicol. Reflex. Crit.. Publicado em: 12/12/2016
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21. High-CHO diet increases post-exercise oxygen consumption after a supramaximal exercise bout
We investigated if carbohydrate (CHO) availability could affect the excess post-exercise oxygen consumption (EPOC) after a single supramaximal exercise bout. Five physically active men cycled at 115% of peak oxygen uptake (V̇O2 peak) until exhaustion with low or high pre-exercise CHO availability. The endogenous CHO stores were manipulated by performing a g
Braz J Med Biol Res. Publicado em: 24/10/2016
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22. Influence of the use of testosterone associated with physical training on some hematologic and physical parameters in older rats with alloxan-induced diabetes
ABSTRACT Objective This study investigated the possible blood changes in wistar rats elderly with and without treatment with anabolic steroids submitted physical training. Materials and methods Elderly rats (32) were divided into four groups: normal (N), treated normal (NT), diabetic (D) and treated diabetic (DT). They were submitted to 20 sessions of sw
Arch. Endocrinol. Metab.. Publicado em: 05/09/2016
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23. Is heart rate variability a feasible method to determine anaerobic threshold in progressive resistance exercise in coronary artery disease?
ABSTRACT Background Recent studies have shown that the magnitude of the metabolic and autonomic responses during progressive resistance exercise (PRE) is associated with the determination of the anaerobic threshold (AT). AT is an important parameter to determine intensity in dynamic exercise. Objectives To investigate the metabolic and cardiac autonomic re
Braz. J. Phys. Ther.. Publicado em: 16/06/2016
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24. Preventing occupational stress in healthcare workers
ABSTRACT: BACKGROUND: Healthcare workers can suffer from occupational stress which may lead to serious mental and physical health problems. OBJECTIVES: To evaluate the effectiveness of work and person-directed interventions in preventing stress at work in healthcare workers. METHODS: Search methods: We searched the Cochrane Depression Anxiety and Neuro
Sao Paulo Med. J.. Publicado em: 2016-02