Power Versus Sarcopenia: Associations with Functionality and Physical Performance Measures
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POWER VERSUS SARCOPENIA: ASSOCIATIONS WITH FUNCTIONALITY AND PHYSICAL PERFORMANCE MEASURES G. BAHAT1, C. KILIC1, S. ERIS1, M.A. KARAN1 1. Department of Internal Medicine, Division of Geriatrics, Istanbul Medical School, Istanbul University, Capa, Istanbul, Turkey. Corresponding author: Gulistan Bahat, Istanbul University, Istanbul Medical School, Department of Internal Medicine, Capa, 34390, Istanbul, Turkey, Telephone: + 90 212 414 20 00-33204, Fax: + 90 212 532 42 08, E-mail address: [email protected]
Abstract: Background/Objective: While assessment of sarcopenia has drawn much attention, assessment of low muscle power has not been studied widely. This is, to a large extend, due to a more difficult assessment of power in practice. We aimed to compare the associations of low power and sarcopenia with functional and performance measures. Material and Methods: We designed a retrospective and cross-sectional study. Community-dwelling outpatient older adults applied to a university hospital between 2012 and 2020 composed the population. We estimated body composition by bioimpedance analysis. Other measures were handgrip strength, timed-up-andgo-test (TUG), usual gait speed (UGS), activities of daily living (ADL) and instrumental activities of daily living (IADL) tests. We assessed muscle power by a practical equation using a 5-repetition sit-to-stand power test. We adjusted the power by body weight and defined low muscle power threshold as the lowest sex-specific tertile. We noted demographic characteristics, number of medications, and diseases. We defined sarcopenia by EWGSOP2 definition. Results: Cut points for low relative muscle power were
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