Percorrer por autor "Pinto, Rita"
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- Arterial stiffness following endurance and resistance exercise sessions in older patients with coronary artery diseasePublication . Santos, Vanessa; Massuça, Luís Miguel; Angarten, Vitor; Melo, Xavier; Pinto, Rita; Fernhall, Bo; Santa-Clara, HelenaArterial stiffness (AS) is associated with coronary artery disease (CAD). Acute endurance training decreases AS, whereas acute resistance training increases it. However, these results are from studies in apparently healthy adults, and there is no information on the effects of such afterload AS in elderly patients with CAD. We aimed to investigate the effect of acute endurance or resistance training on the time course of changes in the indices of AS in elderly patients with CAD in order to understand how stiffness responds after training. We tested 18 trained men with CAD. AS was measured using central and peripheral pulse wave velocity (PWV) after 15 min of rest and after 5, 15, and 30 min of endurance and resistance training sessions. The endurance session consisted of high-intensity interval walking at 85–90% of maximum heart rate, and the resistance session consisted of 70% of the maximum of one repetition. An interaction effect was found for central and peripheral PWV (p ≤ 0.001; carotid, η2 = 0.72; aortic, η2 = 0.90; femoral, η2 = 0.74), which was due to an increase in PWV after resistance and a decrease in central and peripheral PWV after endurance. This study demonstrates that training mode influences the time course of AS responses to acute exercise in these patients. Acute endurance training decreased AS, whereas resistance training significantly increased it.
- Arterial stiffness response to acute combined training with different volumes in coronary artery disease and heart failure patientsPublication . Santos, Vanessa; Massuça, Luís Miguel; Angarten, Vítor; Melo, Xavier; Pinto, Rita; Fernhall, Bo; Santa-Clara, HelenaResistance training has been shown to acutely increase arterial stiffness (AS), while endurance training appears to decrease AS. However, the findings are from studies in apparently healthy subjects and have limited applicability to patients at low and high cardiovascular risk, for whom combined exercise is recommended. We compared the time course of changes in local and regional indices of AS in response to high-volume combined endurance training (CET) and high-volume combined resistance training (CRT) in patients with coronary artery disease (CAD) and heart failure (HF). We studied 20 men with CAD and HF (10 each) aged 68.3 ± 9.6 years. AS was measured by pulse wave velocity (PWV), and brachial and central blood pressure (BP) were determined after 15 min of rest and 5 and 15 min after the exercise session. All patients completed two sessions on nonconsecutive days. A protocol by time interaction effect was observed for carotid (η2 = 0.21, p = 0.02), aortic (η2 = 0.60, p < 0.001), and femoral (η2 = 0.46, p = 0.01) PWV after CET and CRT, suggesting that PWV decreased after CET and increased after CRT. Decreases in the brachial and central variables of BP across time points were observed in both protocols. CET decreased whereas CRT increased carotid, aortic, and femoral PWV at 15 min after exercise in patients with CAD and HF.
- Eficácia na organização-escola:Publication . Pinto, Rita; Dores, Maria AugustaO nosso estudo realizou-se no âmbito da dissertação do Mestrado em Administração e Gestão Escolar. A relação entre os indicadores de uma escola eficaz, a liderança e as estratégias utilizadas sempre nos mereceu uma certa preocupação, o que nos levou a escolher como tema do nosso estudo a eficácia da organização-escola. O objetivo deste estudo foi identificar a perceção dos líderes do Agrupamento A sobre indicadores de eficácia e estratégias utilizadas. Para alcançar este objetivo, adotámos uma metodologia de investigação qualitativa, consubstanciada num estudo de caso. O objeto do nosso estudo foi um Agrupamento de Escolas do ensino público. A nossa amostra foi constituída por alguns elementos da gestão de topo e da gestão intermédia desse agrupamento. As técnicas de recolha de dados utilizadas foram a análise documental, e a entrevista a membros da gestão de topo e da gestão intermédia. Os instrumentos construídos foram o guião das entrevistas, a grelha de análise de conteúdo das entrevistas e a grelha de análise global das entrevistas. Através da análise dos resultados, e tendo por base a fundamentação teórica e a nossa perspetiva, identificámos, no caso estudado e através da perceção de elementos da gestão, indicadores de eficácia e estratégias utilizadas na eficácia da escola.