This study compared the plasma kallikrein activity (PKA), bradykinin concentration (BK), DesArg 9... more This study compared the plasma kallikrein activity (PKA), bradykinin concentration (BK), DesArg 9 -BK production, nitric oxide release (NO) and blood pressure (BP) response after moderate-intensity aerobic exercise performed by individuals with and without type 2 diabetes. Ten subjects with type 2 diabetes (T2D) and 10 without type 2 diabetes (ND) underwent three sessions: 1) maximal incremental test on cycle ergometer to determine lactate threshold (LT); 2) 20-min of constant-load exercise on cycle ergometer, at 90% LT and; 3) control session. BP and oxygen uptake were measured at rest and at 15, 30 and 45 min post-exercise. Venous blood samples were collected at 15 and 45 minutes of the recovery period for further analysis of PKA, BK and DesArg 9 -BK. Nitrite plus nitrate (NOx) was analyzed at 15 minutes post exercise. The ND group presented post-exercise hypotension (PEH) of systolic blood pressure and mean arterial pressure on the 90% LT session but T2D group did not. Plasma NOx...
In order to investigate the validity of critical velocity (CV) as a noninvasive method to estimat... more In order to investigate the validity of critical velocity (CV) as a noninvasive method to estimate the lactate minimum velocity (LMV), 25 youth runners underwent the following tests: 1) 3,000m running; 2) 1,600m running; 3) LMV test. The intensity of lactate minimum was defined as the velocity corresponding to the lowest blood lactate concentration during the LMV test. The CV was determined using the linear model, defined by the inclination of the regression line between distance and duration in the running tests of 1,600 and 3,000m. There was no significant difference (p=0.3055) between LMV and CV. In addition, both protocols presented a good agreement based on the small difference between means and the narrow levels of agreement, as well as a standard error of estimation classified as ideal. In conclusion, CV, as identified in this study, may be an alternative for noninvasive identification of LMV.
The literature has shown the efficiency of exercise in the control of type 2 diabetes (T2D), bein... more The literature has shown the efficiency of exercise in the control of type 2 diabetes (T2D), being suggested as one of the best kinds of non-pharmacological treatments for its population. Thus, the scientific production related to this phenomenon has growing exponentially. However, despite its advances, still there is a lack of studies that have carried out a review on the acute effects of physical exercise on metabolic and hemodynamic markers and possible control mechanisms of these indicators in individuals with T2D, not to mention that in a related way, these themes have been very little studied today. Therefore, the aim of this study was to organize and analyze the current scientific production about the acute effects of physical exercise on metabolic and hemodynamic markers and possible control mechanisms of these indicators in T2D individuals. For such, a research with the following keywords was performed: -exercise; diabetes and post-exercise hypotension; diabetes and excess ...
Journal of strength and conditioning research / National Strength & Conditioning Association, 2014
Both aerobic (AT) and resistance training (RT) are recommended as nonpharmacological treatments t... more Both aerobic (AT) and resistance training (RT) are recommended as nonpharmacological treatments to prevent hypertension. However, there is a paucity of literature investigating the effects of combined exercise modes (RT combined with AT) in elderly hypertensive women. Thus, our aim was to compare the postexercise hypotension (PEH) response to both protocol models and to assess the correlation between the degree of PEH after acute and chronic training. Furthermore, we also compared several biochemical variables for each training group. Sixty hypertensive older women were randomly assigned into nonexercised control (no systematic exercise training throughout the study), eccentric RT (ERT), and traditional RT (TRT). The training programs consisted of 16 weeks of RT combined with AT. Blood pressure (BP), biochemical profiles, and 1 repetition maximum (1RM) were evaluated. There was a significant increase in high-density lipoprotein (HDL) after both training regimens pre- to posttraining...
Page 1. Revista Brasileira de Nutrição Esportiva, São Paulo v. 3, n. 13, p. 42-49, Janeiro/Fevere... more Page 1. Revista Brasileira de Nutrição Esportiva, São Paulo v. 3, n. 13, p. 42-49, Janeiro/Fevereiro, 2009. ISSN 1981-9927. 42 Revista Brasileira de Nutrição Esportiva ISSN 1981-9927 versão eletrônica Periódico do Instituto ...
O objetivo do presente estudo foi verificar a reprodutibilidade de variáveis específicas do teste... more O objetivo do presente estudo foi verificar a reprodutibilidade de variáveis específicas do teste anaeróbio de Wingate e de alguns marcadores fisiológicos e percetuais associados ao teste em ciclistas treinados. Quinze ciclistas do sexo masculino realizaram três testes, com intervalo mínimo de 48 horas entre cada sessão, com carga correspondente a 0.087 vezes a massa corporal de cada voluntário. Foram mensuradas a potência pico, potência média, potência mínima, índice de fadiga, frequência cardíaca, perceção subjetiva de esforço e concentração de lactato. Foi verificada a normalidade dos dados, aplicada Anova One Way para medidas repetidas, com post-hoc de Tukey, foi utilizado o coeficiente de correlação intraclasse e a técnica de concordância de Bland-Altman. Não foram encontradas diferenças significativas na potência pico, índice de fadiga, concentração de lactato, frequência cardíaca e perceção subjetiva de esforço entre os testes. Destas, a potência pico, frequência cardíaca e perceção subjetiva de esforço apresentaram valores elevados e significativos de coeficiente de correlação intraclasse entre cada teste e entre os três testes (variando entre .797 e .975). Ainda, a potência pico apresentou boa concordância entre os testes através da técnica de Bland-Altman. Em suma, o teste anaeróbio de Wingate apresentou alta reprodutibilidade para a potência pico, a frequência cardíaca e a perceção subjetiva de esforço em ciclistas treinados. Palavras-chave: reprodutibilidade, ciclismo, potência, Wingate
Sales MM, Segundo PR, Moreira SR, Santana HAP, Moraes JFVN, Asano RY, Motta DF, Dullius J , Simõe... more Sales MM, Segundo PR, Moreira SR, Santana HAP, Moraes JFVN, Asano RY, Motta DF, Dullius J , Simões HG, Campbell CSG. Resistance Exercise Elicits Acute Blood Pressure Reduction in Type 2 Diabetics. JEPonline 2012;15 :98-109. Different exercise modes have been suggested as non-pharmacological treatment for the prevention and/or control of elevated blood pressure and glycemia. Therefore, with objective of the analyze the occurrence of postexercise hypotension (PEH) to aerobic (AE) and resistance exercises (RE) in type-2 diabetics, nine type 2 diabetics performed: 1) 20-min of cycling (AE) at lactate threshold intensity; 2) RE at 70% of 1RM; and 3) control session (CONT). Heart rate (HR), blood pressure (BP), blood lactate ([lac]), oxygen consumption (VO 2 ) and rate of perceived exertion (RPE) were measured at rest, exercise or CONT and postsession recovery. Mean VO 2 (mL·kg -1 ·min -1) of RE (10.6 ± 1.7) was lower than AE (13.3 ± 1.4) (P<0.05). VO 2 peak measured immediately after each RE bout (17.5 ± 3.4) was higher than in AE (P<0.05). The RE but not AE elicited PEH (P<0.05). The mean arterial pressure decrease after 1 hr of recovery in RE by ~5.3 mmHg, while AE elicited a non-significant decrease of ~1.9 mmHg. Only the 70% of 1RM RE circuit training model promoted PEH in type 2 diabetic individuals, perhaps, due to the higher cardiovascular and metabolic stress when compared to the AE session.
Background and aims Whether intensity or other characteristics of physical activity can better pr... more Background and aims Whether intensity or other characteristics of physical activity can better promote the release of nitric oxide (NO) and reduction of blood pressure in hypertensive older-adults is still unknown. In this study, the post-exercise blood pressure (BP) response and NO release after different intensities of aerobic exercise in elderly women were analyzed. Methods Blood pressure response and NO were analyzed in 23 elderly mildly hypertensive women. Participants underwent (1) high-intensity incremental exercise (IT); (2) moderate-intensity 20 min exercise at 90 % of the anaerobic threshold (AT), and (3) control (CONT) session. BP was measured before and after interventions; volunteers remained seated for 1 h. NO estimates were made through NO 2 analyses.
This study compared the plasma kallikrein activity (PKA), bradykinin concentration (BK), DesArg 9... more This study compared the plasma kallikrein activity (PKA), bradykinin concentration (BK), DesArg 9 -BK production, nitric oxide release (NO) and blood pressure (BP) response after moderate-intensity aerobic exercise performed by individuals with and without type 2 diabetes. Ten subjects with type 2 diabetes (T2D) and 10 without type 2 diabetes (ND) underwent three sessions: 1) maximal incremental test on cycle ergometer to determine lactate threshold (LT); 2) 20-min of constant-load exercise on cycle ergometer, at 90% LT and; 3) control session. BP and oxygen uptake were measured at rest and at 15, 30 and 45 min post-exercise. Venous blood samples were collected at 15 and 45 minutes of the recovery period for further analysis of PKA, BK and DesArg 9 -BK. Nitrite plus nitrate (NOx) was analyzed at 15 minutes post exercise. The ND group presented post-exercise hypotension (PEH) of systolic blood pressure and mean arterial pressure on the 90% LT session but T2D group did not. Plasma NOx...
In order to investigate the validity of critical velocity (CV) as a noninvasive method to estimat... more In order to investigate the validity of critical velocity (CV) as a noninvasive method to estimate the lactate minimum velocity (LMV), 25 youth runners underwent the following tests: 1) 3,000m running; 2) 1,600m running; 3) LMV test. The intensity of lactate minimum was defined as the velocity corresponding to the lowest blood lactate concentration during the LMV test. The CV was determined using the linear model, defined by the inclination of the regression line between distance and duration in the running tests of 1,600 and 3,000m. There was no significant difference (p=0.3055) between LMV and CV. In addition, both protocols presented a good agreement based on the small difference between means and the narrow levels of agreement, as well as a standard error of estimation classified as ideal. In conclusion, CV, as identified in this study, may be an alternative for noninvasive identification of LMV.
The literature has shown the efficiency of exercise in the control of type 2 diabetes (T2D), bein... more The literature has shown the efficiency of exercise in the control of type 2 diabetes (T2D), being suggested as one of the best kinds of non-pharmacological treatments for its population. Thus, the scientific production related to this phenomenon has growing exponentially. However, despite its advances, still there is a lack of studies that have carried out a review on the acute effects of physical exercise on metabolic and hemodynamic markers and possible control mechanisms of these indicators in individuals with T2D, not to mention that in a related way, these themes have been very little studied today. Therefore, the aim of this study was to organize and analyze the current scientific production about the acute effects of physical exercise on metabolic and hemodynamic markers and possible control mechanisms of these indicators in T2D individuals. For such, a research with the following keywords was performed: -exercise; diabetes and post-exercise hypotension; diabetes and excess ...
Journal of strength and conditioning research / National Strength & Conditioning Association, 2014
Both aerobic (AT) and resistance training (RT) are recommended as nonpharmacological treatments t... more Both aerobic (AT) and resistance training (RT) are recommended as nonpharmacological treatments to prevent hypertension. However, there is a paucity of literature investigating the effects of combined exercise modes (RT combined with AT) in elderly hypertensive women. Thus, our aim was to compare the postexercise hypotension (PEH) response to both protocol models and to assess the correlation between the degree of PEH after acute and chronic training. Furthermore, we also compared several biochemical variables for each training group. Sixty hypertensive older women were randomly assigned into nonexercised control (no systematic exercise training throughout the study), eccentric RT (ERT), and traditional RT (TRT). The training programs consisted of 16 weeks of RT combined with AT. Blood pressure (BP), biochemical profiles, and 1 repetition maximum (1RM) were evaluated. There was a significant increase in high-density lipoprotein (HDL) after both training regimens pre- to posttraining...
Page 1. Revista Brasileira de Nutrição Esportiva, São Paulo v. 3, n. 13, p. 42-49, Janeiro/Fevere... more Page 1. Revista Brasileira de Nutrição Esportiva, São Paulo v. 3, n. 13, p. 42-49, Janeiro/Fevereiro, 2009. ISSN 1981-9927. 42 Revista Brasileira de Nutrição Esportiva ISSN 1981-9927 versão eletrônica Periódico do Instituto ...
O objetivo do presente estudo foi verificar a reprodutibilidade de variáveis específicas do teste... more O objetivo do presente estudo foi verificar a reprodutibilidade de variáveis específicas do teste anaeróbio de Wingate e de alguns marcadores fisiológicos e percetuais associados ao teste em ciclistas treinados. Quinze ciclistas do sexo masculino realizaram três testes, com intervalo mínimo de 48 horas entre cada sessão, com carga correspondente a 0.087 vezes a massa corporal de cada voluntário. Foram mensuradas a potência pico, potência média, potência mínima, índice de fadiga, frequência cardíaca, perceção subjetiva de esforço e concentração de lactato. Foi verificada a normalidade dos dados, aplicada Anova One Way para medidas repetidas, com post-hoc de Tukey, foi utilizado o coeficiente de correlação intraclasse e a técnica de concordância de Bland-Altman. Não foram encontradas diferenças significativas na potência pico, índice de fadiga, concentração de lactato, frequência cardíaca e perceção subjetiva de esforço entre os testes. Destas, a potência pico, frequência cardíaca e perceção subjetiva de esforço apresentaram valores elevados e significativos de coeficiente de correlação intraclasse entre cada teste e entre os três testes (variando entre .797 e .975). Ainda, a potência pico apresentou boa concordância entre os testes através da técnica de Bland-Altman. Em suma, o teste anaeróbio de Wingate apresentou alta reprodutibilidade para a potência pico, a frequência cardíaca e a perceção subjetiva de esforço em ciclistas treinados. Palavras-chave: reprodutibilidade, ciclismo, potência, Wingate
Sales MM, Segundo PR, Moreira SR, Santana HAP, Moraes JFVN, Asano RY, Motta DF, Dullius J , Simõe... more Sales MM, Segundo PR, Moreira SR, Santana HAP, Moraes JFVN, Asano RY, Motta DF, Dullius J , Simões HG, Campbell CSG. Resistance Exercise Elicits Acute Blood Pressure Reduction in Type 2 Diabetics. JEPonline 2012;15 :98-109. Different exercise modes have been suggested as non-pharmacological treatment for the prevention and/or control of elevated blood pressure and glycemia. Therefore, with objective of the analyze the occurrence of postexercise hypotension (PEH) to aerobic (AE) and resistance exercises (RE) in type-2 diabetics, nine type 2 diabetics performed: 1) 20-min of cycling (AE) at lactate threshold intensity; 2) RE at 70% of 1RM; and 3) control session (CONT). Heart rate (HR), blood pressure (BP), blood lactate ([lac]), oxygen consumption (VO 2 ) and rate of perceived exertion (RPE) were measured at rest, exercise or CONT and postsession recovery. Mean VO 2 (mL·kg -1 ·min -1) of RE (10.6 ± 1.7) was lower than AE (13.3 ± 1.4) (P<0.05). VO 2 peak measured immediately after each RE bout (17.5 ± 3.4) was higher than in AE (P<0.05). The RE but not AE elicited PEH (P<0.05). The mean arterial pressure decrease after 1 hr of recovery in RE by ~5.3 mmHg, while AE elicited a non-significant decrease of ~1.9 mmHg. Only the 70% of 1RM RE circuit training model promoted PEH in type 2 diabetic individuals, perhaps, due to the higher cardiovascular and metabolic stress when compared to the AE session.
Background and aims Whether intensity or other characteristics of physical activity can better pr... more Background and aims Whether intensity or other characteristics of physical activity can better promote the release of nitric oxide (NO) and reduction of blood pressure in hypertensive older-adults is still unknown. In this study, the post-exercise blood pressure (BP) response and NO release after different intensities of aerobic exercise in elderly women were analyzed. Methods Blood pressure response and NO were analyzed in 23 elderly mildly hypertensive women. Participants underwent (1) high-intensity incremental exercise (IT); (2) moderate-intensity 20 min exercise at 90 % of the anaerobic threshold (AT), and (3) control (CONT) session. BP was measured before and after interventions; volunteers remained seated for 1 h. NO estimates were made through NO 2 analyses.
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