Consulta: creatorFacets:"Cunha,F.A."
Registros recuperados: 2
Data/hora: 10/06/2024 09:19:22

Influence of exercise modality on agreement between gas exchange and heart rate variability thresholds
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Cunha,F.A.; Montenegro,R.A.; Midgley,A.W.; Vasconcellos,F.; Soares,P.P.; Farinatti,P.
The main purpose of this study was to investigate the level of agreement between the gas exchange threshold (GET) and heart rate variability threshold (HRVT) during maximal cardiopulmonary exercise testing (CPET) using three different exercise modalities. A further aim was to establish whether there was a 1:1 relationship between the percentage heart rate reserve (%HRR) and percentage oxygen uptake reserve (   %    V ˙ O 2 R) at intensities corresponding to GET and HRVT. Sixteen apparently healthy men 17 to 28 years of age performed three maximal CPETs (cycling, walking, and running). Mean heart rate and       V ˙ O 2 at GET and HRVT were 16 bpm (P&lt;0.001) and 5.2 mL·kg-1·min-1 (P=0.001) higher in running than cycling, but no significant differences were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerobic exercise; Autonomic nervous system; Heart rate reserve; Oxygen uptake reserve; Poincare plot; Ramp protocol.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000800706

Oxygen uptake, respiratory exchange ratio, or total distance: a comparison of methods to equalize exercise volume in Wistar rats
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Paes,L.S.; Borges,J.P.; Cunha,F.A.; Souza,M.G.C.; Cyrino,F.Z.G.A.; Bottino,D.A.; Bouskela,E.; Farinatti,P.
This study compared strategies to equalize the volume of aerobic exercise performed with different intensities by Wistar rats, based on the distance covered during exercise bouts and energy expenditure (EE, isocaloric sessions) obtained from oxygen uptake (V̇O2) or respiratory exchange ratio (RER). Thirty-three male rats (270.5±12.8 g) underwent maximal exercise tests to determine V̇O2 reserve (V̇O2R), being randomly assigned to three groups: moderate-intensity continuous exercise at speed corresponding to 50% V̇O2R (MIC; n=11); high-intensity continuous exercise at 80% V̇O2R (HIC; n=11); and high-intensity intermittent exercise (HII; n=11) at 60% V̇O2R (3 min) and 80% V̇O2R (4 min). Exercise duration was calculated individually to elicit EE of 5 kcal in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Energy expenditure; Aerobic exercise; Exercise testing; Metabolism; Fitness.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000800607