Evaluation of the 3‐minute chair rise test as part of preoperative evaluation for patients with non‐small cell lung cancer

Background Peak oxygen uptake (V˙O2peak) measured by a cardiopulmonary exercise test (CPX) is the gold‐standard for predicting surgical risk in patients with non‐small cell lung cancer (NSCLC). The 3‐minute chair rise test (3CRT) is a simple test requiring minimal resources. This study aimed to determine the ability of 3CRT to predict V˙O2peak in patients with NSCLC. Methods Retrospective data from CPX and 3CRT carried out in 36 patients with NSCLC between March 2018 and February 2019 were included. A multivariate analysis was undertaken to derive a predictive V˙O2peak equation based on performance on the 3CRT. In addition, sensitivity‐specificity analysis was carried out to estimate a threshold 3CRT value for the prediction of V˙O2peak ≥ 15 mL/kg/minute. Results The following equation was obtained: V˙O2peak predicted = (0.04765 × FEV1) ‐ (0.207 59 × BMI) ‐ (0.115 89 × age) + (0.386 09 × vertical distance) + 16.628 69; r2 = 0.75, P