José Carlos Bonjorno
University of São Paulo
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Revista Brasileira De Fisioterapia | 2013
Rodrigo Polaquini Simões; José Carlos Bonjorno; Thomas Beltrame; Aparecida Maria Catai; Ross Arena; Audrey Borghi-Silva
BACKGROUND The analysis of the kinetic responses of heart rate (HR) and oxygen consumption (VO(2)) are an important tool for the evaluation of exercise performance and health status. OBJECTIVES The purpose of this study was to investigate the effects of aging on the HR and VO(2) kinetics during the rest-exercise transition (on-transient) and the exercise-recovery transition (off-transient), in addition to investigating the influence of exercise intensity (mild and moderate) on these variables. METHOD A total of 14 young (23±3 years) and 14 elderly (70±4 years) healthy men performed an incremental exercise testing (ramp protocol) on a cycle-ergometer to determine the maximal power (MP). Discontinuous exercise testing was initiated at 10% of the MP with subsequent increases of 10% until exhaustion. The measurement of HR, ventilatory and metabolic variables and blood lactate were obtained at rest and during the discontinuous exercise. RESULTS The lactate threshold was determined in each subject and was similar between the groups (30±7% of MP in the young group and 29±5% of MP in the elderly group, p>0.05). The HR and VO(2) kinetics (on- and off-transient) were slower in the elderly group compared to the young group (p<0.05). Additionally, in the young group, the values of HR and VO(2) kinetics were higher in the moderate compared to the mild exercise intensity. CONCLUSION We concluded that the elderly group presented with slower HR and VO(2) kinetics in relation to the young group for both on- and off-transients of the dynamic exercise. Moreover, in the young group, the kinetic responses were slower in the moderate intensity in relation to the mild intensity.
International Journal of Sports Medicine | 2013
Rodrigo Polaquini Simões; Viviane Castello-Simões; Renata Gonçalves Mendes; Bruno Archiza; Daniel Augusto dos Santos; Heloísa G Machado; José Carlos Bonjorno; Cláudio Ricardo de Oliveira; M. S. Reis; Aparecida Maria Catai; Ross Arena; Audrey Borghi-Silva
This purpose of this study was to: 1) determine the intensity corresponding to anaerobic threshold (AT) during a discontinuous resistance exercise protocol in healthy young and elderly subjects by analyzing heart rate variability (HRV) and blood lactate (BL) and 2) investigate the effect of aging on these variables. A total of 28 individuals, 14 young and 14 elderly healthy men underwent one-repetition maximum (1RM) testing to determine maximum load on the leg press. Discontinuous resistance exercise testing was initiated at 10% of the 1RM with subsequent increases of 10%. The load corresponding to AT was approximately 30% 1RM in both groups. The determination of AT by HRV was associated with BL responses (p<0.01). While HRV indexes decreased with increasing of loads in both groups, the elderly had lower values at loads below AT (p<0.05). Additionally, BL increased sharply after the load corresponding to AT in both groups, although elderly subjects showed the lowest values (p<0.05). In conclusion, HRV is an effective tool for determining AT, which was approximately 30% 1RM under the testing procedures included in the present study. Furthermore, there was a marked change in autonomic function, with gradual vagal withdrawal followed by sympathetic activation. These responses were lower in elderly subjects.
Clinical Physiology and Functional Imaging | 2014
Rodrigo Polaquini Simões; Viviane Castello-Simões; Renata Gonçalves Mendes; Bruno Archiza; Daniel Augusto dos Santos; José Carlos Bonjorno; Cláudio Ricardo de Oliveira; Aparecida Maria Catai; Ross Arena; Audrey Borghi-Silva
The purposes of this study were to determine anaerobic threshold (AT) during discontinuous dynamic and resistive exercise protocols by analysing of heart rate variability (HRV) and blood lactate (BL) in healthy elderly subjects and compare the cardiovascular, metabolic and autonomic variables obtained from these two forms of exercise. Fourteen elderly (70 ± 4 years) apparently healthy males underwent the following tests: (i) incremental ramp test on cycle ergometer, (ii) one repetition maximum (1RM) leg press at 45°, (iii) a discontinuous exercise test on a cycle ergometer (DET‐C) protocol and (iv) a resistance exercise leg press (DET‐L) protocol. Heart rate, blood pressure and BL were obtained during each increment of exercise intensity. No significant differences (P>0·05) were found between methods of AT determination (BL and HRV) nor the relative intensity corresponding to AT (30% of maximum intensity) between the types of exercise (DET‐C and DET‐L). Furthermore, no significant differences (P>0·05) were found between the DET‐C and DET‐L in relation to HRV, however, the DET‐L provided higher values of systolic blood pressure and BL (P<0·05) from the intensity corresponding to AT. We conclude that HRV was effective in determination of AT, and the parasympathetic modulation responses obtained during dynamic and resistive exercise protocols were similar when compared at the same relative intensity. However, DET‐L resulted in higher values of blood pressure and BL at workloads beyond AT.
American Journal of Physical Medicine & Rehabilitation | 2017
Flávia Cristina Rossi Caruso; José Carlos Bonjorno; Ross Arena; Shane A. Phillips; Ramona Cabiddu; Renata Gonçalves Mendes; Vivian Maria Arakelian; Daniela Bassi; Audrey Borghi-Silva
Objective The aim of this work was to evaluate the hemodynamic, autonomic, and metabolic responses during resistance and dynamic exercise before and after an 8-week resistance training program using a low-intensity (30% of 1 repetitium maximum), high-repetition (3 sets of 20 repetitions) model, added to an aerobic training program, in a coronary artery disease cohort. Design Twenty male subjects with coronary artery disease (61.1 ± 4.7 years) were randomly assigned to a combined training group (resistance + aerobic) or aerobic training group (AG). Heart rate, stroke volume, cardiac output, minute ventilation, blood lactate, and parasympathetic modulation indices of heart rate (square root of the mean squared differences of successive RR intervals [RMSSD] and dispersion of points perpendicular to the line of identity that provides information about the instantaneous beat-to-beat variability [SD1]) were obtained before and after an 8-week RT program while performing exercise on a cycle ergometer and a 45-degree leg press. Results Resistance training resulted in an increase in maximal and submaximal load tolerance (P < 0.01), a decreased hemodynamic response (P < 0.01), and a reduction in blood lactate in the combined training group compared to the aerobic training group during the 45-degree leg press. During exercise on a cycle ergometer, there was a decreased hemodynamic response and increased minute ventilation (P < 0.01). The 8-week RT program resulted in greater parasympathetic tone (RMSSD and SD1) and an increase in the SDNN index during exercise on a cycle ergometer and 45-degree leg press (P < 0.05). Conclusions An 8-week resistance training program associated with aerobic training may attenuate hemodynamic stress, and modify metabolic and autonomic responses during resistance exercise. The training program also appeared to elicit beneficial cardiovascular and autonomic effects during exercise.
Journal of Sports Sciences | 2018
Bruno Archiza; Daniela Kuguimoto Andaku; Flávia Cristina Rossi Caruso; José Carlos Bonjorno; Cláudio Ricardo de Oliveira; Paula Angélica Ricci; André Capaldo do Amaral; Stela Márcia Mattiello; Cleiton Augusto Libardi; Shane A. Phillips; Ross Arena; Audrey Borghi-Silva
ABSTRACT This study was conducted to determine the effects of inspiratory muscle training (IMT) on respiratory and peripheral muscles oxygenation during a maximal exercise tolerance test and on repeated-sprint ability (RSA) performance in professional women football players. Eighteen athletes were randomly assigned to one of the following groups: SHAM (n = 8) or IMT (n = 10). After a maximal incremental exercise test, all participants performed (on a different day) a time-to-exhaustion (Tlim) test. Peripheral and respiratory muscles oxygenation by near-infrared spectroscopy, breath-by-breath ventilatory and metabolic variables, and blood lactate concentration were measured. The RSA test was performed on a grass field. After a 6 week intervention, all athletes were reevaluated. Both groups showed increases in inspiratory muscles strength, exercise tolerance and RSA performance, however only the IMT group presented lower deoxyhemoglobin and total hemoglobin blood concentrations on intercostal muscles concomitantly to an increased oxyhemoglobin and total hemoglobin blood concentrations on vastus lateralis muscle during Tlim. In conclusion, these results may indicate the potential role of IMT to attenuate inspiratory muscles metaboreflex and consequently improve oxygen and blood supply to limb muscles during high-intensity exercise, with a potential impact on inspiratory muscle strength, exercise tolerance and sprints performance in professional women football players.
Clinical Physiology and Functional Imaging | 2016
Milena Pelosi Rizk Sperling; Flávia Cristina Rossi Caruso; Renata Gonçalves Mendes; Daniela Dutra; Vivian Maria Arakelian; José Carlos Bonjorno; Aparecida Maria Catai; Ross Arena; Audrey Borghi-Silva
Non‐invasive assessment of haemodynamic function by impedance cardiography (IC) constitutes an interesting approach to monitor cardiac function in patients with coronary artery disease (CAD). However, such measurements are most often performed at rest, whereas symptoms are also possible during exertion, particularly at higher intensities. In addition, the association between IC during exertion and cardiopulmonary exercise testing (CPX) is not well understood in these patients, which was the aim of this study.
European Journal of Physical and Rehabilitation Medicine | 2015
Flávia Cristina Rossi Caruso; Ross Arena; Shane A. Phillips; José Carlos Bonjorno; Renata Gonçalves Mendes; Vivian Maria Arakelian; Daniela Bassi; C. Nogi; Audrey Borghi-Silva
Medicine and Science in Sports and Exercise | 2017
Bruno Archiza; Daniela K. Andaku; Flávia Cristina Rossi Caruso; Cleiton Augusto Libardi; José Carlos Bonjorno; Cláudio Ricardo de Oliveira; Audrey Borghi-Silva
European Respiratory Journal | 2017
Larissa Delgado; Paula Angélica Ricci; Lívia Pinheiro Carvalho; Ramona Cabiddu; Ana Claudia Silva Farche; Luciana Di Thommazo-Luporini; Soraia P. Jürgensen; Cláudio Ricardo de Oliveira; José Carlos Bonjorno; José Michel Haddad; Audrey Borghi-Silva; Renata Pedrolongo Basso-Vanelli
Medicine and Science in Sports and Exercise | 2015
Daniela K. Andaku; Bruno Archiza; Renata Gonçalves Mendes; Daniela Bassi; Flávia Cristina Rossi Caruso; André Capaldo do Amaral; Katiany Thays Lopes Zangrando; José Carlos Bonjorno; Audrey Borghi-Silva