Navegando por Palavras-chave "Respiratory Muscles"
Agora exibindo 1 - 3 de 3
Resultados por página
Opções de Ordenação
- ItemSomente MetadadadosConcordância entre dispositivos de mensuração da Pimáx e índices de avaliação da função muscular inspiratória(Universidade Federal de São Paulo (UNIFESP), 2020-05-28) Souza, Vitor Costa [UNIFESP]; Sperandio, Priscila Cristina De Abreu [UNIFESP]; Universidade Federal de São PauloObjective: To assess the agreement between MIP measurement devices and investigate the distribution another indices of inspiratory muscle function obtained by digital device in a healthy sample. Method: Cross-sectional and prospective study conducted with healthy individuals, aged 20 to 85 years, both sexes, non-smokers and non-obese. MIP was measured using an analog and digital device to assess association and agreement between measurements using intraclass correlation coefficient and Bland Altman test, respectively. A direct comparison of MIP values with values predicted in equations referenced in literature was performed. Inspiratory muscle work, strength-index (s-index) and inspiratory muscle resistance measured also by digital device were correlated with demographic, anthropometric and spirometric variables and multiple linear regression test was applied to assess the ability to predict and develop reference equations. Results: One hundred and fiftythree individuals were recruited, but only 120 were included for analysis, most woman,with no previous history of smoking and medium level of physical activity. MIP values obtained by the digital device were, on average, 6.8 cmH2O higher than the analog, with high variability of the differences. For this sample, PImax prediction formulas present in literature, overestimated the values when strength was lower, and underestimated when PImax was high. New PImax prediction formulas were presented for each device. Height and MIP obtained on the digital device are the variables that best explain inspiratory muscle work (-755 + MIP * 3.33 + height * 5.32), and height, weight, age and sex are the ones that predict the values obtained for the S-index (Man:-32.3 - 0.39 * age + 0.79 * height + 0.47 * weight; Woman: -53 -0.39 * age + 0.79 * height + 0 , 47 * weight). Conclusion: Digital device presented higher and discordant MIP values when compared to analog device. Prediction equations for MIP, S-index and inspiratory muscle work were also presented.
- ItemSomente MetadadadosHigh-intensity inspiratory protocol increases heart rate variability in myocardial revascularization patients(Hospital Clinicas, Univ Sao Paulo, 2016) Rossi Caruso, Flavia Cristina; Simoes, Rodrigo Polaquini; Reis, Michel Silva; Guizilini, Solange [UNIFESP]; dos Santos Alves, Vera Lucia; Papa, Valeria; Arena, Ross; Borghi-Silva, AudreyObjective: To evaluate heart rate variability during an inspiratory muscle endurance protocol at three different load levels [30%, 60% and 80% of maximal inspiratory pressure], in patients who had previously undergone coronary artery bypass grafting. Methods: Nineteen late postoperative myocardial revascularization patients participating in a cardiovascular rehabilitation program were studied. Maximal inspiratory pressure maneuvers were performed. An inspiratory muscle endurance protocol at 30%, 60% and 80% of maximal inspiratory pressure was applied for four minutes each, in random order. Heart rate and RR intervals were recorded and heart rate variability was analyzed by time (RMSSD-the mean of the standard deviations for all R-R intervals, and RMSM-root-mean square differences of successive R-R intervals) and frequency domains indices (high and low frequency) in normalized units. ANOVA for repeated measurements was used to compare heart rate variability indices and Student t-test was used to compare the maximal inspiratory pressure and maximal expiratory pressure values. Results: Heart rate increased during performance of maximal respiratory pressures maneuvers, and the maximal inspiratory pressure and maximal expiratory pressure mean values were significantly lower than predicted values (P<0.05). RMSSD increased significantly at 80% in relation to rest and 30% of maximal inspiratory pressure and RMSM decreased at 30% and 60% of maximal inspiratory pressure in relation to rest (P<0.05). Additionally, there was significant and progressive decrease in low frequency and increase in high frequency at 30%, 60% and 80% of maximal inspiratory pressure in relation to the resting condition. Conclusion: These results suggest that respiratory muscle training at high intensities can promote greater parasympathetic activity and it may confer important benefits during a rehabilitation program in post-coronary artery bypass grafting.
- ItemAcesso aberto (Open Access)O treinamento inspiratório com threshold aumenta a sensibilidade à insulina de pacientes idosos portadores de resistência à insulina(Universidade Federal de São Paulo (UNIFESP), 2010-03-31) Silva, Mayra dos Santos [UNIFESP]; Lopes, Guiomar Silva [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)The physiological degenerations in the aging process can cause physiological decline in the pulmonary and metabolic function, being able to affect in the elder quality of life. The aging is association with insulin resistance, characterized for the reduction of the insulin reply to the stimulations, whose gradual effect can take the glucose intolerance and diabetes type 2. Therefore, the objective in this study was to investigate the influence of the inspiratory muscular training through the Threshold® on the insulin resistance in aged people. The study involved the participation of 14 elder voluntaries, with age between 61 and 82 years old, sedentaries, with BMI between 18,75 - 36,7 and insulin resistants with lipids alterations, of both genders, without previous pulmonary and cardiovascular disease at the clinic of the Taipas Hospital. The selected patients have been submitted to the Laboratorial Test, the physical Test and Cardiopulmonary Test. After the test, the patients were divided in two groups: Control group and Experimental Group. The program had duration of 12 weeks and both the groups did the inspiratory muscle training 07 times per week, being 06 times domiciliary and 01 time in the clinic with duration of 30 minutes daily. All tests were repeated after 12 weeks of inspiratory muscle training, where the comparison between the groups after the period of study showed that the group that suffered intervention got an improvement of the respiratory muscular performance and force, reduction of metabolic values. It being considered statistical significant the reduction of the values in glicemic, insulin and HOMA IR, this is important because the correlation between aging and insulin resistance. The data suggest that the inspiratory muscle training improves the insulin sensibility in insulin resistance patients.