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Background There is little information on the association of sarcopenia with physical activity in elderly cardiac patients. This study determined differences in physical activity and cutoff values for physical activity according to the presence or absence of sarcopenia in elderly male cardiac patients. Methods and results Sixty-seven consecutive men aged ≥65 years with cardiac disease were enrolled. We defined sarcopenia using the European Working Group on Sarcopenia in Older People algorithm. Patients were divided into the sarcopenia group ( n =25) and the non-sarcopenia group ( n =42). In the patients with and without sarcopenia of physical activities were evaluated to determine cutoff values of physical activity. Results After adjusting for patient characteristics, both the average daily number of steps (3361.43±793.23 vs. 5991.55±583.57 steps, P =0.021) and the average daily energy expenditure of physical activity (71.84±22.19 vs. 154.57±16.18kcal, P =0.009) were significantly lower in the sarcopenia versus non-sarcopenia group. Receiver-operating characteristic analysis identified a cutoff value for steps of physical activity of 3551.80steps/day for 1 week, with a sensitivity of 0.73 and 1-specificity of 0.44 and a cutoff value for energy expenditure of physical activity of 85.17kcal/day for 1 week, with a sensitivity of 0.73 and 1-specificity of 0.27. Conclusions Physical activity in the male cardiac patients with sarcopenia was significantly lower than that in those without sarcopenia. The cutoff values reported here may be useful values to aid in the identification of elderly male cardiac patients with sarcopenia.

heart failure patients Kazuhiro P. Izawa ⁎, Satoshi Watanabe , Shinobu Tochimoto , Koichiro Oka , Yuhei Otobe , Shinji Nemoto , Yasuyuki Hirano , Naohiko Osada , Kazuto Omiya , Peter H. Brubaker , Hiroyuki Shimizu g a Graduate School of Health Sciences, Kobe University 7-10-2 Tomogaoka, Suma-ku, Kobe 654-0142, Japan b Department of Rehabilitation Medicine, St. Marianna University School of Medicine Hospital, Kanagawa, Japan c Faculty of Sport Sciences, Waseda University, Saitama, Japan d Department of Physical Therapy, Tokushima Bunri University, Tokushima, Japan e Division of Cardiology, Department of Internal Medicine, St. Marianna University School of Medicine, Kanagawa, Japan f Department of Health and Exercise Science, Wake Forest University, Winston-Salem, NC, USA g Department of Orthopedic Surgery, St. Marianna University School of Medicine, Kanagawa, Japan

a Graduate School of Health Sciences, Kobe University, Kobe, Japan b Department of Rehabilitation Medicine, St. Marianna University School of Medicine Hospital, Kawasaki, Japan c Department of Physical Therapy, Tokushima Bunri University, Tokushima, Japan d Faculty of Sport Sciences, Waseda University, Tokorozawa, Japan e Division of Cardiology, St. Marianna University Toyoko Hospital, Kawasaki, Japan f Department of Cardiology, St. Marianna University Yokohama City Seibu Hospital, Yokohama, Japan g Department of Health and Exercise Science, Wake Forest University, Winston-Salem, NC, USA h Department of Orthopedic Surgery, St. Marianna University School of Medicine, Kawasaki, Japan i Division of Cardiology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan