Application of segmental bioelectrical impedance spectroscopy to the assessment of skeletal muscle cell mass in elderly men

Geriatrics and Gerontology International - Tập 14 Số S1 - Trang 129-134 - 2014
Yosuke Yamada1,2, Kaori Matsuda3, Mikko Björkman4,5, Misaka Kimura2
1Japan Society for the Promotion of Science, Tokyo, Japan
2Laboratory of Sports and Health Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
3Kansai University of Nursing and Health Sciences Hyogo Japan
4Clinics of Internal Medicine and Geriatrics, Helsinki University Central Hospital, Helsinki, Finland
5Geriatric Unit, Department of Internal Medicine, Institute of Clinical Medicine, University of Helsinki, Helsinki, Finland

Tóm tắt

AimIt is important to assess not only the total skeletal muscle mass, but also the intracellular and extracellular compartments of skeletal muscle to examine the actual relationship between skeletal muscle mass and physical functions. Segmental bioelectrical impedance spectroscopy is a unique tool with which to assess intracellular and extracellular water in the limbs. The aim of the present study was to examine the application of segmental bioelectrical impedance spectroscopy to the assessment of skeletal muscle mass in the elderly.MethodsA total of 73 healthy elderly men and 20 elderly men requiring care and using an ambulatory day‐care service of the public long‐term care insurance system participated in the present study. The intracellular and extracellular water in the upper and lower legs were assessed by segmental bioelectrical impedance spectroscopy. The gait speed, grip strength and maximal isometric knee extension strength were measured.ResultsThe elderly requiring care had significantly lower intracellular water than did healthy elderly in the upper and lower legs. A significant relative expansion of extracellular water against total water was observed in the elderly requiring care. Receiver operating characteristic curves showed that the area under the curve for the intracellular water index was similar to that for muscle strength in the discrimination of elderly requiring care.ConclusionsThe elderly requiring care had a relative expansion of extracellular water in the legs, which could have masked actual muscle atrophy. Segmental bioelectrical impedance spectroscopy would be useful for the assessment of skeletal muscle cell mass and sarcopenia in the elderly.Geriatr Gerontol Int 2014; 14 (Suppl. 1): 129–134.

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Thông tin xuất bản

Geriatrics and Gerontology International

Tập 14 Số S1

129-134

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