Phase Angle is a Useful indicator for Muscle Function in Older Adults

Phase angle (PhA) can be determined through bioelectrical impedance analysis and is a unique variable for skeletal muscle. The objective of this study was to evaluate the relationship between PhA and muscle mass/quality in older adults. In addition, we attempted to determine the cutoff value of PhA...

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Vydáno v:The Journal of nutrition, health & aging Ročník 23; číslo 3; s. 251 - 255
Hlavní autoři: Yamada, Minoru, Kimura, Y., Ishiyama, D., Nishio, N., Otobe, Y., Tanaka, T., Ohji, S., Koyama, S., Sato, A., Suzuki, M., Ogawa, H., Ichikawa, T., Ito, D., Arai, H.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Paris Elsevier Masson SAS 01.03.2019
Springer Paris
Springer Nature B.V
Elsevier
Témata:
Aged
Aged, 80 and over
Aging
Bioelectrical impedance
Biomarkers
dynapenia
elderly
Electric Impedance - therapeutic use
Female
Geriatrics/Gerontology
Humans
Male
Medicine
Medicine & Public Health
men
Muscle function
muscle strength
Muscle Strength - physiology
muscles
Neurosciences
Nutrition
older adults
Older people
phase angle
physical activity
Primary Care Medicine
Quality of Life Research
Sarcopenia
Sarcopenia - physiopathology
skeletal muscle
ultrasonography
women
older adults
phase angle
Bioelectrical impedance
dynapenia
sarcopenia
ISSN:1279-7707, 1760-4788, 1760-4788
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Shrnutí:Phase angle (PhA) can be determined through bioelectrical impedance analysis and is a unique variable for skeletal muscle. The objective of this study was to evaluate the relationship between PhA and muscle mass/quality in older adults. In addition, we attempted to determine the cutoff value of PhA for poor muscle function. Community-dwelling Japanese older men (n=285, 81.1±7.1 years) and women (n=724, 80.4±6.8 years) participated in this study and were classified into four groups based on the Asian Working Group for Sarcopenia (normal, presarcopenia, dynapenia, and sarcopenia). We measured PhA using bioelectrical impedance analysis, muscle quantity and quality indicators using ultrasonography, muscle strength, and physical performance and compared them in four groups. We also tried to determine the cutoff value of PhA for poor muscle function. We found a significant difference in PhA among the four groups in men (P<0.05), and the dynapenia (3.61±0.75°) and sarcopenia groups (3.40±0.74°) showed significantly lower values than the normal group (4.50±0.86°) (P<0.05), but not the presarcopenia group (4.12±0.85°). In women, a significant difference was also observed among the four groups (P<0.05), and the dynapenia (3.41±0.65°) and sarcopenia groups (3.31±0.66°) showed significantly lower measures than the normal group (4.14±0.71°) (P<0.05), but not the presarcopenia group (4.07±0.51°). The receiver-operating characteristic curve analysis indicated the best cutoff value of PhA (men: 4.05°, women: 3.55°) to discriminate sarcopenia and dynapenia from normal and presarcopenia. These findings suggest that PhA is a useful indicator for muscle function.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:1279-7707
1760-4788
1760-4788
DOI:10.1007/s12603-018-1151-0