PMID- 37839878 OWN - NLM STAT- MEDLINE DCOM- 20240515 LR - 20240515 IS - 1349-7235 (Electronic) IS - 0918-2918 (Linking) VI - 63 IP - 10 DP - 2024 May 15 TI - Low Daily Step Count Associated with Small Erector Spinae Muscle Area and Sarcopenia in Idiopathic Pulmonary Fibrosis. PG - 1345-1352 LID - 10.2169/internalmedicine.2584-23 [doi] AB - Objective The daily step count is associated with mortality in idiopathic pulmonary fibrosis (IPF). However, the factors associated with this phenomenon are not yet fully understood. We therefore clarified its association with clinical parameters. Methods Fifty-nine patients with IPF with available data for daily step counts; 6-minute walk distance (6MWD); chest, abdominal, and pelvic computed tomography (CT); pulmonary function; psychological evaluations; and sarcopenia assessments were prospectively enrolled. The daily step count was measured continuously for seven consecutive days. The cross-sectional areas of the erector spinae muscles at the level of the 12th vertebra (ESM(CSA)) and psoas major muscle volume (PMV) obtained by CT were assessed. Results The average age of the patients was 73.3+/-8.1 years old, and the percent predicted forced vital capacity was 81.6%+/-15.8%. The median daily step count was 4,258 (2,155-6,991) steps. The average 6MWD, ESM(CSA), and PMV were 413+/-97 m, 25.5+/-6.7 cm(2), and 270+/-75.6 cm(3), respectively. A linear regression analysis for daily step count showed that the ESM(CSA) and 6MWD were independent factors for the daily step count, whereas the PMV and skeletal muscle index were not. The daily step count, ESM(CSA), and 6MWD were lower in patients with sarcopenia than in those without sarcopenia. Conclusion A lower daily step count was associated with a smaller erector spinae muscle area and sarcopenia in patients with IPF. Further studies are warranted to confirm the importance of physical therapy for muscle strengthening in patients with IPF. FAU - Ohkubo, Hirotsugu AU - Ohkubo H AD - Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Japan. FAU - Fujita, Kohei AU - Fujita K AD - Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Japan. FAU - Ito, Keima AU - Ito K AD - Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Japan. FAU - Nakano, Akiko AU - Nakano A AD - Department of Respiratory Medicine and Allergy, Nagoya City University Midori Municipal Hospital, Japan. FAU - Horiuchi, Minoru AU - Horiuchi M AD - Department of Respiratory Medicine and Allergy, Nagoya City University Midori Municipal Hospital, Japan. FAU - Mori, Yuta AU - Mori Y AD - Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Japan. FAU - Fukumitsu, Kensuke AU - Fukumitsu K AD - Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Japan. FAU - Fukuda, Satoshi AU - Fukuda S AD - Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Japan. FAU - Kanemitsu, Yoshihiro AU - Kanemitsu Y AD - Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Japan. FAU - Uemura, Takehiro AU - Uemura T AD - Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Japan. FAU - Tajiri, Tomoko AU - Tajiri T AD - Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Japan. FAU - Ito, Yutaka AU - Ito Y AD - Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Japan. FAU - Ozawa, Yoshiyuki AU - Ozawa Y AD - Department of Radiology, Fujita Health University Okazaki Medical Center of Radiology, Japan. FAU - Murase, Takayuki AU - Murase T AD - Department of Pathology and Molecular Diagnostics, Graduate School of Medical Sciences, Nagoya City University, Japan. FAU - Niimi, Akio AU - Niimi A AD - Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Japan. LA - eng PT - Journal Article DEP - 20231013 PL - Japan TA - Intern Med JT - Internal medicine (Tokyo, Japan) JID - 9204241 SB - IM MH - Humans MH - *Sarcopenia/diagnostic imaging/physiopathology MH - *Idiopathic Pulmonary Fibrosis/complications/physiopathology/diagnostic imaging MH - Male MH - Aged MH - Female MH - *Walk Test MH - Aged, 80 and over MH - *Paraspinal Muscles/diagnostic imaging/physiopathology MH - Prospective Studies MH - Tomography, X-Ray Computed MH - Middle Aged MH - Walking/physiology MH - Vital Capacity OTO - NOTNLM OT - 6-minute walk test OT - computed tomography OT - daily step count OT - erector spinae muscle OT - idiopathic pulmonary fibrosis OT - sarcopenia EDAT- 2023/10/16 00:42 MHDA- 2024/05/16 00:44 CRDT- 2023/10/15 21:23 PHST- 2024/05/16 00:44 [medline] PHST- 2023/10/16 00:42 [pubmed] PHST- 2023/10/15 21:23 [entrez] AID - 10.2169/internalmedicine.2584-23 [doi] PST - ppublish SO - Intern Med. 2024 May 15;63(10):1345-1352. doi: 10.2169/internalmedicine.2584-23. Epub 2023 Oct 13.