ABSTRACT
Negative changes in cardiovascular and autonomic variables in stroke survivors have encouraged the global scientific community to focus on investigating therapeutic strategies to mitigate stroke damage. The objective of the present study was to describe the effects of exercise training on cardiovascular and autonomic variables in stroke survivors. We used the PICO (population, intervention, control/comparison, and outcome variables) model for the search of articles in PubMed and Physiotherapy Evidence Databases from 2009 to December 2018. The following data were also recorded: type of study, author, year of publication, participants (time after stroke, sample size, and age) and benefits of exercise training. A total of 544 articles were initially selected, of which nine peer-reviewed articles met the search criteria. These nine studies enrolled 611 participants (middle-aged or elderly), and pointed to positive effects of training on maximal oxygen uptake, peak aerobic capacity, 6-minute walk test and resting heart rate. However, more well-controlled studies are needed to confirm the benefits of exercise training on cardiovascular and autonomic variables in this population
Subject(s)
Humans , Male , Female , Autonomic Nervous System , Cardiovascular System , Exercise , Stroke/mortality , Rehabilitation , Physical Therapy Specialty/methods , Resistance Training/methods , Data Accuracy , Walk Test , Endurance TrainingABSTRACT
Abstract Objective: The aim of the present study was to investigate the acute response to aerobic exercise on autonomic cardiac control of patients undergoing coronary artery bypass grafting (CABG). Methods: The study sample consisted of eight patients (age: 58.6±7.7 years; body mass index: 26.7±3.5 kg.m2) who underwent a successful CABG (no complications during surgery and/or in the following weeks). To assess heart rate variability (HRV), participants remained in a supine position with a 30-degree head elevation for 20 minutes. Electrocardiographic signal (protocol with three derivations) was collected from 600 Hz sample rate to obtain beat-to-beat intervals (R-R interval). This assessment was performed before, after one hour and after 24 hours of the exercise session. All patients underwent a 35 minutes aerobic exercise session (AES) (low-moderate intensity) on the cycle ergometer. Results: Significant differences were found in the time domain, with positive changes in root mean square of successive RR interval differences (rMSSD) (ms) (parasympathetic component) (one [P=0.017] and 24 hours [P=0.007] post-session). In the frequency domain, we found a significant difference in high frequency (HF) (ms2) (parasympathetic component) (one hour [P=0.048] post-session). The low frequency (LF)/HF ratio (sympathetic and parasympathetic components with a predominance of the sympathetic component) reached statistical significance only 24 hours (P=0.018) post-session. Additionally, the largest effect size was observed only for the LF/HF ratio at one (d=-0.8) and 24 hours (d=-1.3) after one AES. Conclusion: The practice of (acute) aerobic exercise improved autonomic cardiac control in patients undergoing CABG.
Subject(s)
Humans , Male , Female , Middle Aged , Aged , Autonomic Nervous System/physiopathology , Exercise/physiology , Coronary Artery Bypass/rehabilitation , Exercise Therapy/methods , Cardiac Rehabilitation/methods , Heart Rate/physiology , Reference Values , Time Factors , Body Mass Index , Reproducibility of Results , Analysis of Variance , Treatment Outcome , Supine Position/physiology , Statistics, Nonparametric , ElectrocardiographyABSTRACT
Abstract Introduction Among the treatment modalities in this disease , the surgical and conservative means stand out through therapy resources such as electro-thermotherapy and kinetic therapy. The general objective of this study was to evaluate the effects from two protocols of physical therapy in elder women with knee osteoarthritis. Methods An experimental clinical trial type study consisting of pre and post tests was performed, in which 30 female patients were selected, all between 61 and 80 years old, diagnosed with primary knee OA, treated at the Center for Comprehensive Health Care for the Elder (CAISI - Centro de Atenção Integral à Saúde do Idoso). They were divided into 2 groups of 15 persons for each type of treatment: Group I was treated with kinetic therapy, and group II was treated with electro-thermotherapy. Patients from both groups underwent 36 physical therapy sessions during 12 weeks. For data collection, protocol sheets with socio-demographic data, Body Mass Index (BMI) at kg/m2, visual analogue scale (VAS) and measurement of motion range (ADM) were used. For statistics analysis, the Mann-Whitney, Wilcoxon and Chi-square's non-parametric tests were used. Student's parametric tests were also applied as independent samples. Results The tests performed in both groups contributed to the reduction in the level of pain. There were differences in group I and II on the increase of ADM, except in bending the left knee in group II. Conclusion It was concluded that both treatment modalities showed effective therapeutic responses, but these benefits were even higher in OA treatment by kinetic therapy.
Resumo Introdução Dentre as modalidades de tratamento na Osteoartrose, destacam-se a forma cirúrgica e conservadora através dos recursos fisioterapêuticos como a eletrotermoterapia e a cinesioterapia. Objetivo Verificar os efeitos de dois protocolos terapêuticos em mulheres idosas com Osteoartrose de joelho. Métodos Realizou-se um estudo do tipo ensaio clínico não controlado com delineamento pré-teste e pós-teste, onde foram selecionadas para a pesquisa 30 pacientes do sexo feminino, com idade entre 61 a 80 anos, com diagnóstico de Osteoartrose de joelho primária, atendidas em um Centro de Referência Integral à Saúde do Idoso (CAISI), que foram divididas em 2 grupos de 15 pessoas para cada modalidade de terapias: o grupo I foi tratado com a cinesioterapia, e o grupo II foi tratado com eletrotermoterapia. Pacientes de ambos os grupos realizaram 36 atendimentos fisioterapêuticos durante 12 semanas. Para a coleta dos dados foi utilizada ficha protocolo contendo dados sócio-demográficos, índice de massa corporal (IMC), escala visual analógica (EVA) e medida da amplitude do movimento (ADM). Para análise estatística, foram utilizados os testes não paramétricos de Mann-Whitney e Wilcoxon, o teste paramétrico t de Student para amostras independentes e para verificar as associações o teste qui-quadrado. Resultados Os tratamentos realizados nos dois grupos contribuíram para a redução do nível de dor. Houveram diferenças nos grupo I e II quanto ao aumento da ADM, exceto na flexão do joelho esquerdo no grupo II. Conclusões Conclui-se que ambas as modalidades de terapias demonstraram respostas terapêuticas pela redução da dor e melhora da ADM, porém o grupo que foi tratado pela cinesioterapia obteve uma melhora mais acentuada.