Concurrent validity among three field tests and the cardiopulmonary exercise testing in patients with idiopathic pulmonary fibrosis

Abstract

Background: cardiopulmonary exercise testing (CPET) is the gold standard for assessing functional capacity in patients with idiopathic pulmonary fibrosis (IPF). Aim: Assess the concurrent validity among three field tests and the CPET in patients with IPF. Methods: sixteen patients were assessed; 11 males, age: 69.44 (±7.68) years and BMI: 29.15 (±4.21) kg/m2 and presented a restrictive pulmonary disorder - FVC: 68.29 (±19.84 % of predicted). The following tests were performed: six-minute walk test (6MWT), modified shuttle test (MST), Glittre-ADL Test (TGlittre) and CPET. Data collection was performed in three days, with an interval of 2 -15 days among them, and analyzed on the following way: 10s with the highest average obtained the last 30s on CPET, the largest distances in the 6MWT and MST tests and the shorter time spent in the TGlittre. Concurrent validity was assessed using simple linear regression and a p Conclusion: MST was considered the best field test to explain VO2 peak variance obtained by CPET test in patients with IPF.