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Total Body Water and Intracellular Water Relationships with Muscle Strength, Frailty and Functional Performance in an Elderly Population. A Cross-Sectional Study.
- Source :
- Journal of Nutrition, Health & Aging; Jan2019, Vol. 23 Issue 1, p96-101, 6p
- Publication Year :
- 2019
-
Abstract
- Background: As a person ages, total body water (TBW), intracellular water (ICW), muscle mass and muscle strength tend to decline. The decline in ICW may reflect losses in the number of muscle cells but may also be responsible for less hydrated muscle cells.Aim: To assess whether TBW and ICW are associated with muscle strength, functional performance and frailty in an aged population, independently of muscle mass.Methodology: Design: An observational cross-sectional study of community-dwelling individuals aged 75 years and older. TBW, ICW, fat mass, lean mass and muscle mass were assessed by bioelectrical impedance analysis, frailty status was measured according to Fried criteria, handgrip strength was measured using the hand-held JAMAR dynamometer, and functional performance was measured according to the Barthel index and gait speed.Results: A total of 324 subjects were recruited (mean age 80.1 years, 47.5% women). TBW and ICW were closely correlated with muscle mass in both sexes. ICW was also associated with Barthel score, gait speed and frailty in both sexes and with handgrip in men. Considerable variability in ICW was observed for the same muscle mass. Multivariate analysis showed a positive effect of ICW on handgrip, functional performance and gait speed and a protective effect of ICW on frailty, independently of age, sex, body mass index and number of comorbidities.Conclusions: In elderly individuals with similar muscle mass, those with higher ICW had a better functional performance and a lower frailty risk, suggesting a protective effect of cell hydration, independently of muscle mass. [ABSTRACT FROM AUTHOR]
- Subjects :
- SKELETAL muscle physiology
ADIPOSE tissues
GERIATRIC assessment
CYTOSOL
EXERCISE tests
FRAIL elderly
GRIP strength
HYDRATION
BIOELECTRIC impedance
MULTIVARIATE analysis
MUSCLE contraction
MUSCLE strength
SCIENTIFIC observation
WATER in the body
COMORBIDITY
BODY mass index
INDEPENDENT living
CROSS-sectional method
LEAN body mass
WALKING speed
BARTHEL Index
OLD age
Subjects
Details
- Language :
- English
- ISSN :
- 12797707
- Volume :
- 23
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Journal of Nutrition, Health & Aging
- Publication Type :
- Academic Journal
- Accession number :
- 133760942
- Full Text :
- https://doi.org/10.1007/s12603-018-1129-y