PT - JOURNAL ARTICLE AU - Daigo Kato AU - Makoto Fueki AU - Yasuhiro Endo AU - Daisuke Uga AU - Kunio Dobashi AU - Rie Nakazawa AU - Masaaki Sakamoto TI - 30-second chair-stand test is a valuable evaluation in chronic respiratory diseases DP - 2014 Sep 01 TA - European Respiratory Journal PG - P4286 VI - 44 IP - Suppl 58 4099 - http://erj.ersjournals.com/content/44/Suppl_58/P4286.short 4100 - http://erj.ersjournals.com/content/44/Suppl_58/P4286.full SO - Eur Respir J2014 Sep 01; 44 AB - [Introduction] 6-Minute Walk Test (6MWT) is a valuable tool for measuring exercise tolerance in patients with chronic respiratory diseases (CRD). However, severe CRD patients often show marked depression in SpO2 during or after walking that leads to interruption of 6MWT. Therefore we tried to evaluate their exercise tolerance by 30-second Chair-Stand Test (CS-30). CS-30 used to be performed for evaluating physical fitness in elderly who were instructed to stand up and sit down on the chair as fast as possible during a 30-second period. This study is aimed at confirming usefulness of CS-30 as one of safe assessments for exercise tolerance in CRD.[Methods] 33 patients with CRD (18 COPD / 15 IPF. Age73.7±9.6 yrs) performed 6MWT and CS-30. SpO2 was recorded before and after the tests. In COPD, muscle strength of quadriceps was measured by hand-held dynamometer.[Results] Significant correlation between 6-minute walking distance (383.0±99.6m) and frequency of standing-up (13.9±4.4times) was found (p<0.05, r=0.591).Significant difference was found in SpO2 depression between 6MWT (-8.7±7.2%) and CS-30 (-1.7±2.0%) (p<0.01).Significant difference was found in SpO2 depression after 6MWT between COPD (-8.3±7.6%) and IPF (-.012±8.1%) (p<0.05).Significant correlation between frequency of standing-up and muscle strength of quadriceps was found(p<0.05, r=0.518(Rt), 0.710(Lt)).[Conclusion] CS-30 can evaluate exercise tolerance in patients with CRD like 6MWT. This study suggests that CS-30 is a valuable method to evaluate exercise tolerance in CRD patients who show SpO2 depression with exercise.