Navegando por Palavras-chave "Reference Values"

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    Concordância 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 Paulo
    Objective: 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.
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    Equações de referência para os testes de caminhada de campo em adultos saudáveis
    (Sociedade Brasileira de Pneumologia e Tisiologia, 2011-10-01) Dourado, Victor Zuniga [UNIFESP]; Vidotto, Milena Carlos [UNIFESP]; Guerra, Ricardo Luís Fernandes [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    OBJECTIVE: To develop regression equations for predicting six-minute and incremental shuttle walk distances (6MWD and ISWD, respectively), based on demographic characteristics, anthropometric variables, and grip strength. METHODS: We evaluated 6MWD and ISWD in 98 healthy adults. Height, weight, and grip strength were also assessed. Using data from 90 of the participants (40 males; 60 ± 9 years of age), we devised linear equations adjusted for age, gender, height, and weight, and we developed alternate models that included grip strength. We prospectively applied the equations in the 8 remaining participants (4 males; 59 ± 10 years), who had been randomly separated from the initial sample. RESULTS: Age, gender, height, and weight collectively explained 54.5% and 64.9% of the variance in 6MWD and ISWD, respectively, whereas age, height, weight, and grip strength collectively explained 54.4% and 69.0% of the respective variances. There was no significant difference between the measured and predicted 6MWD using equations with and without grip strength (14 ± 57 vs. 13 ± 67 m). Similar results were observed for ISWD (25 ± 104 vs. 25 ± 93 m). CONCLUSIONS: Grip strength is a determinant of ISWD and 6MWD; however, it could not improve the power of equations adjusted by demographic and anthropometric variables. The validity of our models including grip strength should be further evaluated in patients with skeletal muscle dysfunction.