Ramp Test
Mostrando 1-12 de 54 artigos, teses e dissertações.
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1. Comparison between Bruce and Ramp Protocols for Exercise Testing in the Diagnosis of Myocardial Ischemia
Abstract Background: Exercise tests are an important tool in the investigation of myocardial ischemia. The ramp protocol has gained increasing importance in clinical practice because of the possibility of individualizing its exercise intensity. Objective: To assess and compare the sensitivity, specificity, and accuracy of Bruce and ramp protocols for exerc
International Journal of Cardiovascular Sciences. Publicado em: 2022
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2. Limited cardiopulmonary capacity in patients with liver cirrhosis when compared to healthy subjects
SUMMARY OBJECTIVES: The present study compared cardiorespiratory capacity between cirrhotic patients and healthy subjects. METHODS: Nineteen cirrhotic patients and 19 healthy subjects, paired by age and gender, participated in the study. Volunteers performed an incremental cardiopulmonary test with a ramp protocol, a ventilatory and metabolic variables wer
Rev. Assoc. Med. Bras.. Publicado em: 2021-01
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3. CLINIMEX Aerobic Fitness Questionnaire: Proposal and Validation
Abstract Background: Cardiorespiratory (aerobic) fitness is strongly and directly related to major health outcomes, including all-cause mortality. Maximum oxygen uptake (VO2max), directly measured by maximal cardiopulmonary exercise test (CPET), represents the subject’s aerobic fitness. However, as CPET is not always available, aerobic fitness estimation
Int. J. Cardiovasc. Sci.. Publicado em: 12/08/2019
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4. Plasma brain-derived neurotrophic factor is higher after combat training (Randori) than incremental ramp test in elite judo athletes
Elite judo demands high levels of physical and psychological skills. The brain-derived neurotrophic factor (BDNF) may be of particular interest in sports medicine for its ability to promote neuroplasticity. We investigated the plasma BDNF before and after a judo training session (Randori) and the maximal incremental ramp test (MIRT) in athletes from the Braz
Braz J Med Biol Res. Publicado em: 08/04/2019
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5. Microscopía fototérmica para el estudio de transformaciones de fase
ABSTRACT A novel system allowing a high spatial resolution mapping of the thermal diffusivity as a function of temperature up to 1800 K is presented. The system is based on a photothermal technique recently developed by the group, consisting in measuring, with a probe laser beam, the curvature induced by local heating with a modulated pump laser. A microscop
Matéria (Rio J.). Publicado em: 19/07/2018
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6. 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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7. Is the bonding of self-adhesive cement sensitive to root region and curing mode?
Abstract Objectives To evaluate the influence of two curing techniques on the degree of conversion (DC) of resin cements and on bond strength (BS) of fiber posts in different regions of root dentin. Material and Methods Twenty single-rooted premolars were endodontically treated, and the post spaces were prepared. The roots were randomly divided into two
J. Appl. Oral Sci.. Publicado em: 2017-02
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8. Use of the Wasserman equation in optimization of the duration of the power ramp in a cardiopulmonary exercise test: a study of Brazilian men
This study aimed to analyze the agreement between measurements of unloaded oxygen uptake and peak oxygen uptake based on equations proposed by Wasserman and on real measurements directly obtained with the ergospirometry system. We performed an incremental cardiopulmonary exercise test (CPET), which was applied to two groups of sedentary male subjects: one ap
Braz J Med Biol Res. Publicado em: 18/09/2015
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9. 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
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10. Limiares eletrofisiológico e psicoacústicos por via óssea em indivíduos normais e com perda auditiva. / Electrophysiological and psychoacoustic thresholds bone in normal hearing impaired
To investigate the electrophysiological thresholds obtained by bone and compared them with the psychoacoustic thresholds obtained in pure tone audiometry in adults with normal hearing and with different types and degrees of hearing loss. Methods: The sample consisted of 70 subjects, 35 men and 35 women (30 normal, 10 with conductive hearing loss, 10 with mil
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/01/2011
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11. Effect of different light curing methods on mechanical and physical properties of resin-cements polymerized through ceramic discs
OBJECTIVE: The aim of this study was to compare the polimerization ability of three different light-curing units (quartz tungsten halogen, light-emitting diodes and plasma arc) and their exposure modes (high-intensity and soft-start) by determination of microhardness, water sorption and solubility, and diametral tensile strength of 5 dual-curing resin cement
J. Appl. Oral Sci.. Publicado em: 01/07/2011
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12. Relationship between work rate and oxygen uptake in mitochondrial myopathy during ramp-incremental exercise
We determined the response characteristics and functional correlates of the dynamic relationship between the rate (Δ) of oxygen consumption ( O2) and the applied power output (work rate = WR) during ramp-incremental exercise in patients with mitochondrial myopathy (MM). Fo
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-04