Respiratory Function as a Predictor of Poor Functional Capacity in Hemodialysis Patients

• Published in: Journal of exercise physiology online Vol. 20; no. 4; p. 159
• Main Authors: Scares, Viviane, Silva, Maria Sebastiana, Tolentino, Grassyara Pinho, Venancio, Patricia Espindola Mota, Lima, William Alves, Oliveira-Silva, Iranse
• Format: Journal Article
• Language: English
• Published: Duluth American Society of Exercise Physiologists 01-08-2017
• Subjects: Care and treatment; Hemodialysis; Hemodialysis patients; Physiological aspects; Pulmonary function tests
• ISSN: 1097-9751; 1097-9751

Soares V, Silva MS, Tolentino GP, Venancio PEM, Lima WA, Oliveira-Silva I. Respiratory Function as a Predictor of Poor Functional Capacity in Hemodialysis Patients. JEPonline 2017;20 (4):159-171. The purpose of this study was to investigate respiratory function as a predictor of poor functional capacity (following V[O.sub.2] peak <70% of predicted) in hemodialysis patients. A cross-sectional study was conducted with 51 males. Respiratory muscle strength, pulmonary function, and cardiopulmonary exercise tests were done in a non-dialysis day. Subjects were classified according to V[O.sub.2] peak (adequate and inadequate). The Student's t-test was used to compare the respiratory variables. Two logistic regression models were used to identify the respiratory strength and pulmonary function predictors of low oxygen consumption. Maximal inspiratory pressure ([Pi.sub.max], P=0.001), maximal expiratory pressure ([Pe.sub.max], P=0.03), forced expiratory volume in 1 sec (%VE[F.sub.1], P=0.05), and forced vital capacity (%FVC, P=0.05) were higher in the adequate group. Maximal inspiratory pressure ([Pi.sub.max]) was considered the predictor of poor functional capacity in the hemodialysis patients, which suggests that it can be applied in clinical practice. Key Words: Functional Capacity, Hemodialysis, Oxygen Uptake (V[O.sub.2] peak)