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1.
Am J Health Promot ; : 8901171241234664, 2024 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-38387084

RESUMO

PURPOSE: To evaluate the effectiveness of gamified versus nongamified health promotion interventions on cardiometabolic health and fitness parameters in healthcare worker women. DESIGN: Randomized parallel group trial. SETTING: A public outpatient health center in Brazil. SUBJECTS: Women employees (included: n = 29; lost to follow-up: n = 1; analyzed: n = 28). INTERVENTIONS: 8 weeks of gamified (n = 15) or nongamified (n = 13) interventions, consisting of health lectures, nutritional counseling, and supervised exercise training. The gamified group was divided into teams that received points based on completion of health goals/tasks. MEASURES: Anthropometric, cardiometabolic and physical fitness parameters. ANALYSIS: Two-way ANOVA with repeated measures (group vs. time), and Bonferroni post hoc tests. RESULTS: Body mass (-1.5 ± 1.5 kg), waist circumference (-1.6 ± 3.0 cm), HbA1C (-.2 ± .3%), triglycerides (-21.5 ± 48.2 mg/dl), systolic (-11.1 ± 7.9 mmHg) and diastolic (-7.1 ± 5.8 mmHg) blood pressure, as well as sit and reach (3.9 ± 3.0 cm) and six-minute walking (56 ± 37 m) performance improved (P < .05) only after the gamified intervention. Sit-to-stand performance improved after both the gamified (-1.18 ± 1.24 s) and nongamified (-1.49 ± 1.87 s) interventions. CONCLUSION: The gamified intervention was more effective than the nongamified intervention for improving cardiometabolic and physical fitness parameters, suggesting that gamification may be an effective tool for promoting health in healthcare worker women.

2.
J Vasc Nurs ; 41(4): 226-234, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-38072577

RESUMO

PURPOSE: To perform a systematic review of studies assessing the effects of regular exercise on heart rate variability (HRV) in individuals with lower extremity arterial disease (LEAD) and symptoms of claudication. METHODS: A systematic search in the electronic databases MEDLINE, Embase, and Scielo, was conducted and updated on January 21, 2023. Randomized clinical trials investigating patients with LEAD and IC, assessing ≥ 4 wk of exercise interventions, and reporting at least one HRV measure (e.g., time or frequency domains) at baseline and follow-up were included. Two reviewers independently screened studies for inclusion, performed data extraction, and quality assessment of included studies. RESULTS: Data from 7 trials were included (i.e., 5 walking, 1 resistance, and 1 isometric handgrip training), totaling 327 patients (66% males; range: 61 - 68 yr; ankle brachial index: 0.4 - 0.7). Following exercise training, three studies investigating walking training reported an increase in parasympathetic modulation indices and/or a decrease in sympathetic modulation indices (n = 2) as well as an increase in non-linear indices (n = 1). CONCLUSION: The current evidence is weak, and larger randomized controlled trials are needed to confirm the efficacy of exercise training in improving HRV. Additionally, the high divergence in the methodology of studies indicated the need for standard tools to improve the quality of HRV measurements in exercise trials. It is recommended to use standard procedures in future trials investigating HRV.


Assuntos
Terapia por Exercício , Força da Mão , Masculino , Humanos , Feminino , Frequência Cardíaca/fisiologia , Terapia por Exercício/métodos , Exercício Físico/fisiologia , Claudicação Intermitente/terapia , Extremidade Inferior
3.
J Sports Med Phys Fitness ; 62(3): 389-394, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34275259

RESUMO

BACKGROUND: The aim of this study was to assess hemodynamic and cardiac autonomic response to high-intensity interval exercise (HIIE) versus moderate-intensity continuous exercise (MICE) in individuals with Parkinson's disease (PD). METHODS: Twelve individuals (six men) with PD were randomly assigned to perform HIIE (4 min of warm-up followed by 21 min alternating 1 min at levels 15-17 with 2 min at levels 9-11 of rating of perceived exertion [RPE] in a cycle ergometer), MICE (4 min of warm-up followed by 26 min at levels 11-14 of RPE in a cycle ergometer) and control (CON; 30 min of sitting rest) interventions in separate days. Heart rate (HR), blood pressure (BP), endothelial reactivity and heart rate variability (HRV) were assessed before, immediately after and 45 min after each intervention. HR and exercise workload were measured during each intervention. RESULTS: Despite the within (high- vs. low-intensity intervals of HIIE) and between (HIIE vs. MICE) differences in workload during exercise sessions, HR was not different between high- (average HR=98±18 bpm) and low-intensity (average HR 97±19 bpm) intervals of HIIE, as well as between HIIE (average HR=97±18 bpm) and MICE (average HR=93±19 bpm) throughout the exercise. There were significant, but small, increases (P<0.01) in HR and systolic BP at post HIIE and MICE, which returned to levels similar to preintervention during recovery. There were no within- and between-intervention differences in diastolic BP, endothelial reactivity and HRV. CONCLUSIONS: The present results suggest that hemodynamic response to exercise is impaired in individuals with PD.


Assuntos
Treinamento Intervalado de Alta Intensidade , Doença de Parkinson , Pressão Sanguínea , Exercício Físico , Frequência Cardíaca , Hemodinâmica , Humanos
4.
J Sports Med Phys Fitness ; 61(6): 797-802, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33511816

RESUMO

BACKGROUND: We tested the hypothesis that the 6 to 20 rating of perceived exertion (RPE) is a cost-effective tool similar to heart rate (HR) response to cardiopulmonary exercise test for prescribing and self-regulating high-intensity interval exercise (HIIE). In this context, we analyzed if health-related responses to exercise are similar between HIIE prescribed and self-regulated by RPE (HIIERPE) and HIIE prescribed and regulated by HR response to cardiopulmonary exercise test (HIIEHR). METHODS: Twelve young (21±2 years) sedentary or insufficiently active individuals (weekly levels ˂150 minutes or 75 minutes of moderate- or vigorous-intensity physical activity, respectively) were randomly assigned to perform HIIERPE (25 minutes), HIIEHR (25 minutes) and control session (25 minutes of seated resting). Blood pressure, HR, and arterial stiffness (pulse wave velocity) were measured before, immediately after, and 30 minutes after each intervention. HR, speed, and distance were measured during exercise sessions. 24-hours ambulatory blood pressure was measured after each intervention. RESULTS: Exercise HR, speed, and distance, as well as blood pressure response to exercise were not different between HIIERPE and HIIEHR. Pulse wave velocity reduced (P<0.05) at postintervention in both HIIERPE (0.28±0.17 m/s) and HIIEHR (0.27±0.11 m/s). However, pulse wave velocity at recovery was lower than pre-intervention only during HIIERPE (0.30±0.10 m/s). CONCLUSIONS: These results suggest that RPE is a cost-effective tool for prescribing self-regulating HIIE and improving health-related variables in young individuals.


Assuntos
Teste de Esforço/métodos , Treinamento Intervalado de Alta Intensidade/métodos , Esforço Físico/fisiologia , Pressão Sanguínea/fisiologia , Monitorização Ambulatorial da Pressão Arterial , Estudos Cross-Over , Frequência Cardíaca/fisiologia , Humanos , Masculino , Análise de Onda de Pulso , Método Simples-Cego , Rigidez Vascular
5.
Blood Press Monit ; 26(3): 171-175, 2021 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-33234812

RESUMO

The aim of this study was to evaluate blood pressure (BP), heart rate, arterial stiffness and endothelial reactivity responses to heated water immersion in older individuals with hypertension. Thirty-five sedentary individuals (67 ± 5 years) under treatment for hypertension were randomly assigned to water-based [n = 20; 30 min of seated resting in a heated swimming pool (30-32 °C)] or land-based group [n = 15; 30 min of seated resting in a quiet room with controlled temperature (21-23 °C)]. BP, heart rate, arterial stiffness and endothelial reactivity were measured before, immediately after (post) and 45 min after (recovery) each session. Heart rate reduced (P < 0.05) during the land-based session, and the reduction was maintained at post (~7 bpm) and recovery (~9 bpm), but no heart rate changes occurred during and after the water-based session. Systolic/diastolic BP increased (P = <0.001) at post (~29/10 mmHg) and recovery (~10/7 mmHg) in the water-based group, but not in the land-based group. No significant changes in pulse wave velocity and endothelial reactivity occurred in both groups. These results suggest that the hemodynamic response to heated water immersion should be taken into account when assessing the effect of heated water-based exercise on postexercise hypotension in older individuals with hypertension.


Assuntos
Hipertensão , Água , Idoso , Pressão Sanguínea , Frequência Cardíaca , Hemodinâmica , Humanos , Hipertensão/terapia , Imersão , Análise de Onda de Pulso
6.
Eur J Prev Cardiol ; 27(11): 1151-1161, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-31604403

RESUMO

PURPOSE: The purpose of this study was to investigate the hemodynamic and cardiorespiratory adaptations to exercise in individuals with heart transplantation with evidence of cardiac reinnervation (cardiac reinnervation group) versus without evidence of cardiac reinnervation (no cardiac reinnervation group). METHODS: Sedentary individuals with heart transplantation (age = 45.5 ± 2.2 years; time elapsed since surgery = 6.7 ± 0.7 years) were divided into the cardiac reinnervation (n = 16) and no cardiac reinnervation (n = 17) groups according to their heart rate response to cardiopulmonary exercise testing. The 24-hour ambulatory blood pressure, carotid-femoral pulse wave velocity, and cardiorespiratory fitness were assessed before and after 12 weeks of a thrice-weekly exercise program (five minutes of warm-up, 30 min of endurance exercise, one set of 10-15 reps in five resistance exercises, and five minutes of cool-down). RESULTS: The cardiac reinnervation group had reduced (p < 0.01) 24-hour systolic/diastolic blood pressure (7/9 mm Hg), daytime systolic/diastolic blood pressure (9/10 mm Hg) and nighttime diastolic blood pressure (6 mm Hg) after training. The no cardiac reinnervation group reduced (p < 0.05) only 24-hour (5 mm Hg), daytime (5 mm Hg) and nighttime (6 mm Hg) diastolic blood pressure after training. Hourly analysis showed that the cardiac reinnervation group reduced systolic/diastolic blood pressure for 10/21 h, while the no cardiac reinnervation group reduced systolic/diastolic blood pressure for only 3/11 h. The cardiac reinnervation group also improved both maximal oxygen consumption (10.8%) and exercise tolerance (13.4%) after training, but the no cardiac reinnervation group improved only exercise tolerance (9.9%). Pulse wave velocity did not change in both groups. CONCLUSION: There were greater improvements in ambulatory blood pressure and maximal oxygen consumption in the cardiac reinnervation than the no cardiac reinnervation group. These results suggest that cardiac reinnervation associates with hemodynamic and cardiorespiratory adaptations to exercise training in individuals with heart transplantation.


Assuntos
Adaptação Fisiológica , Pressão Sanguínea/fisiologia , Terapia por Exercício/métodos , Tolerância ao Exercício/fisiologia , Insuficiência Cardíaca/reabilitação , Transplante de Coração , Insuficiência Cardíaca/fisiopatologia , Insuficiência Cardíaca/cirurgia , Humanos , Consumo de Oxigênio/fisiologia
7.
Blood Press Monit ; 23(6): 297-300, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30157058

RESUMO

The aim of this study was to assess the role of physical activity in blood pressure (BP) in individuals with knee osteoarthritis. We compared 136 participants under treatment for primary knee osteoarthritis (age=67.6±9.6 years) allocated to the sedentary-sedentary, active-sedentary, sedentary-active, and active-active groups depending on their levels of daily physical activity before and after follow-up. Their BP, BMI, and endurance performance (6-min walking test) were compared during 12 months of follow-up. The sedentary-sedentary group had increased systolic BP (11±3 mmHg), and the active-sedentary group had increased systolic (12±4 mmHg) and diastolic BP (5±1 mmHg) during follow-up. By contrast, the sedentary-active group maintained systolic BP and showed reduced diastolic BP (5±2 mmHg), and the active-active group maintained both systolic and diastolic BP. Positive effects on BP were accompanied by improvements in endurance performance and BMI in the sedentary-active group (endurance performance=8.5±2.7%; BMI=9.3±3.6%) and the active-active group (endurance performance=2.9±0.9%; BMI=3.8±2.0%), which did not occur in the sedentary-sedentary and active-sedentary groups. These results suggest a positive role of high levels of daily living physical activity in the prevention/management of hypertension in individuals with knee osteoarthritis.


Assuntos
Atividades Cotidianas , Pressão Sanguínea , Exercício Físico , Hipertensão , Idoso , Brasil , Feminino , Humanos , Hipertensão/etiologia , Hipertensão/fisiopatologia , Hipertensão/prevenção & controle , Masculino , Pessoa de Meia-Idade , Osteoartrite do Joelho/fisiopatologia , Osteoartrite do Joelho/terapia
8.
Complement Ther Clin Pract ; 28: 38-46, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28779935

RESUMO

The aim of this review was to evaluate the effect of pranayama (Yoga's breathing exercises) on BP and its applicability in the treatment of hypertension. Thirteen trials, assessing acute (eight studies) and chronic (five studies) BP response to pranayama were included. Significant BP reductions after pranayama were found in both acute (2-10 mmHg mean SBP reduction, N = 5 studies; 1 mmHg mean DBP reduction, N = 1 study) and chronic studies (4-21 mmHg mean SBP reduction, N = 3 studies; 4-7 mmHg mean DBP reduction, N = 2 studies). The pranayama's effect on BP were not robust against selection bias due to the low quality of studies. But, the lowering BP effect of pranayama is encouraging. The pranayama with slower rhythms and manipulation of the nostrils, mainly with breaths by the left, present better results when compared with the other types and should be the main pranayama applied when the goal is to reduce blood pressure especially in hypertensive patients.


Assuntos
Pressão Sanguínea , Exercícios Respiratórios , Hipertensão/terapia , Yoga , Anti-Hipertensivos , Exercícios Respiratórios/métodos , Feminino , Humanos , Hipertensão/fisiopatologia , Masculino , Meditação
10.
Eur J Cardiovasc Prev Rehabil ; 18(6): 824-30, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21450597

RESUMO

Exercise training is an effective intervention for treating and preventing hypertension, but its effects on heart rate (HR) response to exercise and cardiorespiratory fitness (CRF) of non-hypertensive offspring of hypertensive parents (FH+) has not been studied. We compared the effects of three times per week equal-volume high-intensity aerobic interval (AIT) and continuous moderate-intensity exercise (CME) on HR response to exercise and CRF of FH+. Forty-four young FH+ women (25.0 ± 4.4 years) randomized to control (CON; n = 12), AIT (80-90% of VO(2MAX); n = 16), or CME (50-60% of VO(2MAX); n = 16) performed a graded exercise test (GXT) before and after 16 weeks of follow-up to evaluate HR response to exercise and several parameters of CRF. Resting, maximal, and reserve HR did not change after the follow-up in all groups. HR recovery (difference between HR(MAX) and HR at 1 minute of GXT recovery phase) improved only after AIT (11.8 ± 4.9 vs. 20.6 ± 5.8 bpm, p < 0.01). Both exercise programmes were effective for improving CRF parameters, but AIT was more effective than CME for improving oxygen consumption at the respiratory compensation point (VO(2RCP); 22.1% vs. 8.8%, p = 0.008) and maximal effort (VO(2MAX); 15.8% vs. 8.0%, p = 0.036), as well as tolerance time (TT) to reach anaerobic threshold (TT(AT); 62.0 vs. 37.7, p = 0.048), TT(RCP) (49.3 vs. 32.9, p = 0.032), and TT(MAX) (38.9 vs. 29.2, p = 0.042). Exercise intensity was an important factor in improving HR recovery and CRF of FH+women. These findings may have important implications for designing exercise-training programmes for the prevention of an inherited hypertensive disorder.


Assuntos
Terapia por Exercício , Frequência Cardíaca , Hipertensão/prevenção & controle , Aptidão Física , Respiração , Adulto , Análise de Variância , Brasil , Teste de Esforço , Tolerância ao Exercício , Feminino , Predisposição Genética para Doença , Frequência Cardíaca/genética , Hereditariedade , Humanos , Hipertensão/genética , Hipertensão/fisiopatologia , Consumo de Oxigênio , Linhagem , Estudos Prospectivos , Respiração/genética , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
11.
J Strength Cond Res ; 24(11): 3023-31, 2010 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-20703174

RESUMO

It has been recommended that the intensity of exercise training (ET) should progress slowly with lower increments in older than in young people. However, scientific evidence supporting this recommendation is lacking. Our aim was to examine possible influences of age on exercise intensity progression in healthy women. Seventeen young (29.1 ± 5.7 years) and 16 older women (64.5 ± 4.5 years) underwent 13 weeks of ET consisting of cycle ergometry (CE, 65-75% of reserve heart rate), whole-body resistance exercise (RE, 60% of 1 repetition maximum [1RM]), and stretching. Muscle strength was assessed before and after ET by the 1RM. Cycle ergometry and RE workloads were recorded for each exercise session, and increases of 5-10% were made whenever adaptation occurred. Absolute muscle strength after ET improved (p < 0.001) in both groups, and there were no significant differences between groups. Relative exercise intensity progression was not significantly different between groups for RE (Pearson's correlation = 0.98 ± 0.01), but it was greater in older women for CE (p = 0.047). The ET was safe because no injuries or major muscle pain was observed in either group. These results suggest that healthy older women are capable of exercising and increasing exercise intensity in the same way as young women.


Assuntos
Envelhecimento/fisiologia , Exercício Físico/fisiologia , Esforço Físico/fisiologia , Adulto , Teste de Esforço , Feminino , Humanos , Pessoa de Meia-Idade , Força Muscular/fisiologia , Aptidão Física
13.
Hypertens Res ; 33(8): 836-43, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20448634

RESUMO

Exercise training has an important role in the prevention and treatment of hypertension, but its effects on the early metabolic and hemodynamic abnormalities observed in normotensive offspring of hypertensive parents (FH+) have not been studied. We compared high-intensity interval (aerobic interval training, AIT) and moderate-intensity continuous exercise training (CMT) with regard to hemodynamic, metabolic and hormonal variables in FH+ subjects. Forty-four healthy FH+ women (25.0+/-4.4 years) randomized to control (ConFH+) or to a three times per week equal-volume AIT (80-90% of VO(2MAX)) or CMT (50-60% of VO(2MAX)) regimen, and 15 healthy women with normotensive parents (ConFH-; 25.3+/-3.1 years) had their hemodynamic, metabolic and hormonal variables analyzed at baseline and after 16 weeks of follow-up. Ambulatorial blood pressure (ABP), glucose and cholesterol levels were similar among all groups, but the FH+ groups showed higher insulin, insulin sensitivity, carotid-femoral pulse wave velocity (PWV), norepinephrine and endothelin-1 (ET-1) levels and lower nitrite/nitrate (NOx) levels than ConFH- subjects. AIT and CMT were equally effective in improving ABP (P<0.05), insulin and insulin sensitivity (P<0.001); however, AIT was superior in improving cardiorespiratory fitness (15 vs. 8%; P<0.05), PWV (P<0.01), and BP, norepinephrine, ET-1 and NOx response to exercise (P<0.05). Exercise intensity was an important factor in improving cardiorespiratory fitness and reversing hemodynamic, metabolic and hormonal alterations involved in the pathophysiology of hypertension. These findings may have important implications for the exercise training programs used for the prevention of inherited hypertensive disorder.


Assuntos
Pressão Sanguínea/fisiologia , Terapia por Exercício/métodos , Exercício Físico/fisiologia , Hipertensão/prevenção & controle , Hipertensão/fisiopatologia , Adulto , Velocidade do Fluxo Sanguíneo/fisiologia , Glicemia/metabolismo , Endotelina-1/sangue , Endotélio Vascular/fisiologia , Metabolismo Energético/fisiologia , Feminino , Humanos , Hipertensão/epidemiologia , Insulina/sangue , Lipídeos/sangue , Masculino , Sistemas Neurossecretores/fisiologia , Nitratos/sangue , Nitritos/sangue , Norepinefrina/sangue , Aptidão Física/fisiologia , Fatores de Risco , Sistema Nervoso Simpático/fisiologia , Adulto Jovem
14.
Int J Cardiol ; 145(1): 75-7, 2010 Nov 05.
Artigo em Inglês | MEDLINE | ID: mdl-19477026

RESUMO

PURPOSE: Beta-blockers (BB) have shown to improve outcomes among heart failure patients (HF). Adequate risk stratification is still a major concern for HF. The prognostic indexes have been detected, but only few parameters maintain consistently high power in predicting progression of disease and mortality. Peak oxygen consumption (VO(2) peak, ml kg(-1) min(-1)) is traditionally used for risk stratification in HF, however, there is limited evidence regarding predictive value of VO(2) peak in patients taking BB. METHODS: Two hundred twenty nine patients, aged 49 ± 13 years with diagnosed HF for more than 6 months due to ischemic (n=73), idiopathic dilated (n=149) and Chagas disease (n=7) underwent a cardiopulmonary exercise test (CPX). The ejection fraction was 38 ± 10%; clinical stability was defined as no change in the NYHA class or absence of hospitalization for heart failure and stable medical treatment during 3 months prior to CPX. Subjects were tracked for cardiac-related mortality after CPX. RESULTS: The mean follow-up period was 2.5 ± 1.1 years and means value for VO(2) peak was 16.3 ± 4. Current BB therapy included carvedilol (83.4%), metoprolol (7.8%), bisoprolol (3.9%) and others (4.8%). The area under the ROC curve for VO(2) peak was 0.80 (95% CI: 0.69-0.90, optimal threshold: 12.5 and 82% sensitivity/26% specificity, p<0.001). Kaplan-Meier analysis that revealed event-free survival for subjects in < and >12.5 was 28% and 2.8%, respectively (long-rank 34.8; p<0.001). CONCLUSIONS: VO(2) peak seems to maintain prognostic value in HF patients BB therapy. The present study also provides new evidence that optimal threshold value for VO(2) peak in the BB era is 12.5 ml kg(-1) min(-1).


Assuntos
Antagonistas Adrenérgicos beta/uso terapêutico , Teste de Esforço/normas , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/tratamento farmacológico , Consumo de Oxigênio/efeitos dos fármacos , Antagonistas Adrenérgicos beta/farmacologia , Adulto , Idoso , Teste de Esforço/efeitos dos fármacos , Teste de Esforço/métodos , Feminino , Seguimentos , Insuficiência Cardíaca/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Consumo de Oxigênio/fisiologia , Prognóstico , Resultado do Tratamento
15.
Congest Heart Fail ; 15(4): 176-80, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19627291

RESUMO

The aim of this study was to evaluate the 24-hour ambulatory blood pressure monitoring (ABPM) response to exercise training (ET) in heart failure (HF) patients. Twelve HF patients and 15 sedentary healthy controls underwent ET for 2 months (3 times per week from 80%-90% of the ventilatory threshold). ABPM was performed before and 2 days after the last exercise season. Despite the fact that ET in HF patients was associated with significant improvements in peak oxygen consumption (pVO2), there were no significant changes in systolic blood pressure (SBP), diastolic blood pressure (DBP), and heart rate (HR). On the other hand, controls decreased 24-hour mean SBP (117+/-8-115+/-9 mm Hg, P=.019) and 24-hour mean DBP (73+/-6-71+/-5 mm Hg, P=.016), mainly at nighttime SBP (107+/-8-103+/-9, P=.0004) and DBP (63+/-5-59+/-5 mm Hg, P<.0001). No changes in HR were found in controls. Values of 24-hour blood pressure did not change with ET in HF patients.


Assuntos
Pressão Sanguínea/fisiologia , Terapia por Exercício , Insuficiência Cardíaca/fisiopatologia , Insuficiência Cardíaca/reabilitação , Monitorização Ambulatorial da Pressão Arterial , Estudos de Casos e Controles , Teste de Esforço , Feminino , Frequência Cardíaca/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Consumo de Oxigênio/fisiologia , Resultado do Tratamento
16.
Int J Cardiol ; 133(3): 381-7, 2009 Apr 17.
Artigo em Inglês | MEDLINE | ID: mdl-18501444

RESUMO

BACKGROUND: Despite antihypertensive therapy, it is difficult to maintain optimal systemic blood pressure (BP) values in hypertensive patients (HPT). Exercise may reduce BP in untreated HPT. However, evidence regarding its effect in long-term antihypertensive therapy is lacking. Our purpose was to evaluate the acute effects of 40-minute continuous (CE) or interval exercise (IE) using cycle ergometers on BP in long-term treated HPT. METHODS: Fifty-two treated HPT were randomized to CE (n=26) or IE (n=26) protocols. CE was performed at 60% of reserve heart rate (HR). IE alternated consecutively 2 min at 50% reserve HR with 1 min at 80%. Two 24-h ambulatory BP monitoring were made after exercise (postexercise) or a nonexercise control period (control) in random order. RESULTS: CE reduced mean 24-h systolic (S) BP (2.6+/-6.6 mm Hg, p=0.05) and diastolic (D) BP (2.3+/-4.6, p=0.01), and nighttime SBP (4.8+/-6.4, p<0.001) and DBP (4.6+/-5.2 mm Hg, p=0.001). IE reduced 24-h SBP (2.8+/-6.5, p=0.03) and nighttime SBP (3.4+/-7.2, p=0.02), and tended to reduce nighttime DBP (p=0.06). Greater reductions occurred in higher BP levels. Percentage of normal ambulatory BP values increased after CE (24-h: 42% to 54%; daytime: 42% to 61%; nighttime: 61% to 69%) and IE (24-h: 31% to 46%; daytime: 54% to 61%; nighttime: 46% to 69%). CONCLUSION: CE and IE reduced ambulatory BP in treated HPT, increasing the number of patients reaching normal ambulatory BP values. These effects suggest that continuous and interval aerobic exercise may have a role in BP management in treated HPT.


Assuntos
Monitorização Ambulatorial da Pressão Arterial/tendências , Terapia por Exercício/tendências , Exercício Físico/fisiologia , Hipertensão/fisiopatologia , Hipertensão/terapia , Adulto , Ergometria/tendências , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Tempo
17.
Clinics (Sao Paulo) ; 63(6): 753-8, 2008 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19060996

RESUMO

BACKGROUND: Even with anti-hypertensive therapy, it is difficult to maintain optimal systemic blood pressure values in hypertensive patients. Exercise may reduce blood pressure in untreated hypertensive, but its effect when combined with long-term anti-hypertensive therapy remains unclear. Our purpose was to evaluate the acute effects of a single session of aerobic exercise on the blood pressure of long-term-treated hypertensive patients. METHODS: Fifty treated hypertensive patients (18/32 male/female; 46.5+/-8.2 years; Body mass index: 27.8+/-4.7 kg/m(2)) were monitored for 24 h with respect to ambulatory (A) blood pressure after an aerobic exercise session (post-exercise) and a control period (control) in random order. Aerobic exercise consisted of 40 minutes on a cycle-ergometer, with the mean exercise intensity at 60% of the patient's reserve heart rate. RESULTS: Post-exercise ambulatory blood pressure was reduced for 24 h systolic (126+/-8.6 vs. 123.1+/-8.7 mmHg, p=0.004) and diastolic blood pressure (81.9+/-8 vs. 79.8+/-8.5 mmHg, p=0.004), daytime diastolic blood pressure (85.5+/-8.5 vs. 83.9+/-8.8 mmHg, p=0.04), and nighttime S (116.8+/-9.9 vs. 112.5+/-9.2 mmHg, p<0.001) and diastolic blood pressure (73.5+/-8.8 vs. 70.1+/-8.4 mmHg, p<0.001). Post-exercise daytime systolic blood pressure also tended to be reduced (129.8+/-9.3 vs. 127.8+/-9.4 mmHg, p=0.06). These post-exercise decreases in ambulatory blood pressure increased the percentage of patients displaying normal 24h systolic blood pressure (58% vs. 76%, p=0.007), daytime systolic blood pressure (68% vs. 82%, p=0.02), and nighttime diastolic blood pressure (56% vs. 72%, p=0.02). Nighttime systolic blood pressure also tended to increase (58% vs. 80%, p=0.058). CONCLUSION: A single bout of aerobic exercise reduced 24h ambulatory blood pressure levels in long-term-treated hypertensive patients and increased the percentage of patients reaching normal ambulatory blood pressure values. These effects suggest that aerobic exercise may have a potential role in blood pressure management of long-term-treated hypertensive.


Assuntos
Exercício Físico/fisiologia , Hipertensão/reabilitação , Monitorização Ambulatorial da Pressão Arterial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Tempo
18.
Clinics ; 63(6): 753-758, 2008. graf, tab
Artigo em Inglês | LILACS | ID: lil-497886

RESUMO

BACKGROUND: Even with anti-hypertensive therapy, it is difficult to maintain optimal systemic blood pressure values in hypertensive patients. Exercise may reduce blood pressure in untreated hypertensive, but its effect when combined with long-term anti-hypertensive therapy remains unclear. Our purpose was to evaluate the acute effects of a single session of aerobic exercise on the blood pressure of long-term-treated hypertensive patients. METHODS: Fifty treated hypertensive patients (18/32 male/female; 46.5±8.2 years; Body mass index: 27.8±4.7 kg/m²) were monitored for 24 h with respect to ambulatory (A) blood pressure after an aerobic exercise session (post-exercise) and a control period (control) in random order. Aerobic exercise consisted of 40 minutes on a cycle-ergometer, with the mean exercise intensity at 60 percent of the patient's reserve heart rate. RESULTS: Post-exercise ambulatory blood pressure was reduced for 24 h systolic (126±8.6 vs. 123.1±8.7 mmHg, p=0.004) and diastolic blood pressure (81.9±8 vs. 79.8±8.5 mmHg, p=0.004), daytime diastolic blood pressure (85.5±8.5 vs. 83.9±8.8 mmHg, p=0.04), and nighttime S (116.8±9.9 vs. 112.5±9.2 mmHg, p<0.001) and diastolic blood pressure (73.5±8.8 vs. 70.1±8.4 mmHg, p<0.001). Post-exercise daytime systolic blood pressure also tended to be reduced (129.8±9.3 vs. 127.8±9.4 mmHg, p=0.06). These post-exercise decreases in ambulatory blood pressure increased the percentage of patients displaying normal 24h systolic blood pressure (58 percent vs. 76 percent, p=0.007), daytime systolic blood pressure (68 percent vs. 82 percent, p=0.02), and nighttime diastolic blood pressure (56 percent vs. 72 percent, p=0.02). Nighttime systolic blood pressure also tended to increase (58 percent vs. 80 percent, p=0.058). CONCLUSION: A single bout of aerobic exercise reduced 24h ambulatory blood pressure levels in long-term-treated hypertensive patients and increased the percentage of patients reaching normal...


Assuntos
Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Exercício Físico/fisiologia , Hipertensão/reabilitação , Monitorização Ambulatorial da Pressão Arterial , Fatores de Tempo
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