Skeletal Muscle Mass and Higher-Level Functional Capacity in Female Community-Dwelling Older Adults

Shuichi Wakayama, Yoshihiko Fujita, Keisuke Fujii, Takeshi Sasaki, Hiroshi Yuine and Kazushi Hotta
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Shuichi Wakayama: Department of Occupational Therapy, Ibaraki Prefectural University of Health Sciences, 4669-2 Ami-Machi, Inashiki-gun, Ibaraki 300-0394, Japan
Yoshihiko Fujita: Department of Occupational Therapy, Ibaraki Prefectural University of Health Sciences, 4669-2 Ami-Machi, Inashiki-gun, Ibaraki 300-0394, Japan
Keisuke Fujii: Department of Occupational Therapy, Kansai University of Health Sciences, Kumatoricho, Sennan-gun, Osaka 590-0482, Japan
Takeshi Sasaki: Department of Occupational Therapy, Ibaraki Prefectural University of Health Sciences, 4669-2 Ami-Machi, Inashiki-gun, Ibaraki 300-0394, Japan
Hiroshi Yuine: Department of Occupational Therapy, Ibaraki Prefectural University of Health Sciences, 4669-2 Ami-Machi, Inashiki-gun, Ibaraki 300-0394, Japan
Kazushi Hotta: Department of Occupational Therapy, Ibaraki Prefectural University of Health Sciences, 4669-2 Ami-Machi, Inashiki-gun, Ibaraki 300-0394, Japan

IJERPH, 2021, vol. 18, issue 13, 1-8

Abstract: Purpose: In this study, our purpose was to examine the relationship between skeletal muscle mass and higher-level functional capacity in female community-dwelling older adults. Participant(s) and Methods: In this cross-sectional study, we targeted 55 female community-dwelling older adults aged 65 years and above participating in long-term care prevention classes in Ibaraki Prefecture between 2018 and 2020. We excluded individuals with cognitive impairment and those judged as having sarcopenia. The variables of interest included age, height, weight, body mass index, skeletal muscle mass index (SMI), handgrip strength, step count, and family structure. We calculated the SMI by dividing the extremities’ total lean mass by the square of the height (in m), while the number of steps was calculated using the three-axis accelerometer Actigraph GT3X ® . We measured skeletal muscle mass via bioelectrical impedance analysis using the InBody270 body composition analyzer and muscular strength as grip strength. Results: We observed significant relationships between skeletal muscle mass and Tokyo Metropolitan Institute of Gerontology Index of Competence (TMIG-IC) (? = 0.336, p < 0.01) and handgrip strength (? = 0.230). Conclusion: In this study, a relationship between skeletal muscle mass and higher-level functional capacity was demonstrated among elderly female community residents.

Keywords: skeletal muscle mass; higher-level functional capacity; elderly community residents (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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