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      • KCI등재SCOPUS

        Assessment of the feasibility of 1-min sit-to-stand test in evaluating functional exercise capacity in interstitial lung disease patients

        Ravi Singh,Deepak Aggarwal,Kashish Dutta,Surabhi Jaggi,Mandeep Kaur Sodhi,Varinder Saini 한국운동재활학회 2023 JER Vol.19 No.6

        Six-min walk test (6MWT) is widely used exercise test for the evalua-tion of interstitial lung disease (ILD). However, the long test duration and need for long and flat surface hinder its routine use. One-min sit-to-stand test (1-STST) is devoid of such limitations, but has been scarcely evaluated. The study was conducted to evaluate the performance of 1-STST by correlating it with 6MWT in ILD patients. Stable ILD patients were prospectively enrolled. After initial spirometry, all patients per-formed 6MWT and 1-STST following the standard recommendations. Exercise capacity and physiological parameters (heart rate, pulse oxy-gen saturation, blood pressure and dyspnea [modified Borg scale]) in-cluding peripheral oxygen saturation (SpO2) were correlated after the tests using Pearson correlation, Intraclass correlation coefficient (ICC) and kappa (κ) coefficient. The results showed that the mean age of the patients (n=60) was 58.8±11.5 years (male:female=1:1). Repetitions af-ter 1-STST showed significant correlation with 6MWT (r=0.48; P<0.001). Changes in the physiological variables were similar (P>0.05) with good consistency (ICC=0.68–0.95) between 6MWT and 1-STST. Both lowest SpO2 and difference in SpO2 also showed good agreement (ICC=0.86; 95% confidence interval [CI], 0.77–0.92 and ICC=0.68; 95% CI, 0.47–0.81 respectively) and significant correlation (r=0.76 and r=0.52, respectively). 1-STST and 6MWT were consistent in identifying patients having oxygen desaturation ≥4% (κ=0.56; 96% CI, 0.30–0.82). The results demonstrated that the performance of 1-STST was consis-tent with 6MWT in terms of exercise capacity and change in physiolog-ical parameters. 1-STST can be a valid alternative to 6MWT in the as-sessment of ILD patients, especially in peripheral health centers.

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