PMID- 32425517 OWN - NLM STAT- MEDLINE DCOM- 20210625 LR - 20210625 IS - 1178-2005 (Electronic) IS - 1176-9106 (Print) IS - 1176-9106 (Linking) VI - 15 DP - 2020 TI - Easy to Perform Physical Performance Tests to Identify COPD Patients with Low Physical Activity in Clinical Practice. PG - 921-929 LID - 10.2147/COPD.S246571 [doi] AB - BACKGROUND: The study investigates which physical performance or muscle function/mass tests significantly correlate with objectively measured physical activity (PA) in patients with chronic obstructive pulmonary disease (COPD) and could potentially serve to identify physically inactive COPD patients in routine clinical practice. METHODS: A cross-sectional, observational study was conducted in outpatients with moderate to very severe COPD. PA was measured during one week with the StepWatch Activity Monitor((R)), an ankle-worn accelerometer, and expressed in steps per day. Physical fitness and peripheral muscle function/mass were evaluated by the 4-meter gait speed (4MGS) test, the 6-minute walk distance (6MWD), the 30-second chair stand test (30sCST), the timed up and go test (TUGT), handgrip strength, arm muscle area, calf circumference, the fat-free mass index (FFMI), and ultrasound measurement of the quadriceps muscle. Spearman's rank correlation analysis and ROC analysis were performed. RESULTS: The study population (N=111, 69% men, mean age 68 years) walked a mean of 8059 steps/day. The daily step count strongly correlated with the 6MWD (rho=0.684, p<0.001) and moderately with the 4MGS (rho=0.464, p<0.001), the TUGT (rho= -0.463, p<0.001), and the 30sCST (rho=0.402, p<0.001). The correlation with the FFMI was weak (rho=0.210, p=0.027), while the other parameters did not significantly correlate with the daily step count. The 6MWD had the best discriminative power to identify patients with very low PA defined as <5000 steps/day (AUC=0.802 [95% CI: 0.720-0.884], p<0.001), followed by the TUGT, the 4MGS, and the 30sCST. CONCLUSION: The 6MWD, the 4MGS, the TUGT, and the 30sCST are easy to perform in any clinical setting and may be used by clinicians in the screening of physically inactive COPD patients. CI - (c) 2020 Matkovic et al. FAU - Matkovic, Zinka AU - Matkovic Z AUID- ORCID: 0000-0002-0685-5769 AD - Department of Internal Medicine, Division of Pulmonary Medicine, Dubrava University Hospital, Zagreb, Croatia. FAU - Tudoric, Neven AU - Tudoric N AD - Department of Internal Medicine, Division of Pulmonary Medicine, Dubrava University Hospital, Zagreb, Croatia. AD - University of Zagreb, School of Medicine, Zagreb, Croatia. FAU - Cvetko, Danijel AU - Cvetko D AD - Department of Diagnostic and Interventional Radiology, Dubrava University Hospital, Zagreb, Croatia. FAU - Esquinas, Cristina AU - Esquinas C AD - Pneumology Department, Hospital Universitari Vall d'Hebron/Vall d'Hebron Institut de Recerca (VHIR), CIBER de Enfermedades Respiratorias (CIBERES), Barcelona, Spain. FAU - Rahelic, Dario AU - Rahelic D AD - University of Zagreb, School of Medicine, Zagreb, Croatia. AD - Vuk Vrhovac University Clinic for Diabetes, Endocrinology and Metabolic Diseases, Merkur University Hospital, Zagreb, Croatia. AD - University of Osijek, School of Medicine, Osijek, Croatia. FAU - Zarak, Marko AU - Zarak M AD - Department of Laboratory Diagnostics, Dubrava University Hospital, Zagreb, Croatia. FAU - Miravitlles, Marc AU - Miravitlles M AUID- ORCID: 0000-0002-9850-9520 AD - Pneumology Department, Hospital Universitari Vall d'Hebron/Vall d'Hebron Institut de Recerca (VHIR), CIBER de Enfermedades Respiratorias (CIBERES), Barcelona, Spain. LA - eng PT - Journal Article PT - Observational Study DEP - 20200424 PL - New Zealand TA - Int J Chron Obstruct Pulmon Dis JT - International journal of chronic obstructive pulmonary disease JID - 101273481 SB - IM MH - Aged MH - Cross-Sectional Studies MH - Exercise MH - Exercise Tolerance MH - Female MH - *Hand Strength MH - Humans MH - Male MH - Physical Functional Performance MH - Postural Balance MH - *Pulmonary Disease, Chronic Obstructive/diagnosis MH - Time and Motion Studies PMC - PMC7187939 OTO - NOTNLM OT - chronic obstructive pulmonary disease OT - exercise capacity OT - gait speed OT - muscle function OT - muscle mass OT - physical activity COIS- Zinka Matkovic has received speaker fees from Abbot Laboratories, AstraZeneca, Berlin-Chemie Menarini and Boehringer Ingelheim, and conference grants from Berlin-Chemie Menarini and Pliva. Neven Tudoric has received speaker fees and conference grants from Chiesi, Berlin-Chemie Menarini, GlaxoSmithKline, AstraZeneca, Boehringer Ingelheim, Cipla, Sandoz, Teva and Novartis, and consulting fees from GlaxoSmithKline, AstraZeneca, Boehringer Ingelheim, TEVA, Berlin-Chemie Menarini and Novartis. Dario Rahelic has served as principal investigator or co-investigator in clinical trials of AstraZeneca, Eli Lilly, MSD, Novo Nordisk, Sanofi Aventis, Solvay and Trophos, he has received honoraria for speaking or advisory board engagements and consulting fees from Abbott, Amgen, AstraZeneca, Bayer, Boehringer Ingelheim, Eli Lilly, Lifescan - Johnson & Johnson, Novartis, Novo Nordisk, MSD, Merck Sharp & Dohme, Pfizer, Pliva, Roche, Salvus, Sanofi Aventis and Takeda. Marc Miravitlles has received speaker fees from AstraZeneca, Boehringer Ingelheim, Chiesi, Cipla, Menarini, Rovi, Bial, Sandoz, Zambon, CSL Behring, Grifols and Novartis, consulting fees from AstraZeneca, Boehringer Ingelheim, Chiesi, GlaxoSmithKline, Bial, Gebro Pharma, Kamada, CSL Behring, Laboratorios Esteve, Ferrer, Mereo Biopharma, Verona Pharma, TEVA, pH Pharma, Novartis, Sanofi and Grifols, and research grants from GlaxoSmithKline and Grifols. The authors report no other conflicts of interest in this work. EDAT- 2020/05/20 06:00 MHDA- 2021/06/29 06:00 PMCR- 2020/04/24 CRDT- 2020/05/20 06:00 PHST- 2020/01/19 00:00 [received] PHST- 2020/03/30 00:00 [accepted] PHST- 2020/05/20 06:00 [entrez] PHST- 2020/05/20 06:00 [pubmed] PHST- 2021/06/29 06:00 [medline] PHST- 2020/04/24 00:00 [pmc-release] AID - 246571 [pii] AID - 10.2147/COPD.S246571 [doi] PST - epublish SO - Int J Chron Obstruct Pulmon Dis. 2020 Apr 24;15:921-929. doi: 10.2147/COPD.S246571. eCollection 2020.