Hand grip strength as a physical biomarker of aging from the perspective of a Fibonacci mathematical modeling

The Golden Ratio (GR) and the Fibonacci sequence have wide applications in biodiversity research, and recent studies indicate that the GR can be highlighted in the organization and physiological functioning of many body systems. The aim of this cross-sectional descriptive study is to determine the a...

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Bibliographic Details
Published in:BMC geriatrics 2018-11, Vol.18 (1), p.296-296, Article 296
Main Authors: Iconaru, Elena Ioana, Ciucurel, Manuela Mihaela, Georgescu, Luminita, Ciucurel, Constantin
Format: Article
Language:English
Subjects:
Activities of daily living
Aging
Aging (Biology)
Analysis
Biodiversity
Biomarkers
Decline
Elderly
Fibonacci numbers
Fractals
Gender
Geriatrics
Golden ratio
Hand
Hand dynamometry
Health aspects
Mathematical models
Middle age
Muscle strength
Older people
Pathology
Physiology
Population
Statistical analysis
Statistical methods
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Summary:The Golden Ratio (GR) and the Fibonacci sequence have wide applications in biodiversity research, and recent studies indicate that the GR can be highlighted in the organization and physiological functioning of many body systems. The aim of this cross-sectional descriptive study is to determine the applicability of a mathematical model derived from the Fibonacci sequence to investigate the changes in hand grip strength (HGS) induced by the aging process. We assessed the HGS for both hands, using a Saehan hydraulic hand dynamometer in a group of autonomous elderly subjects. One hundred twenty 55-year-old subjects (58 males and 62 females) and seventy 89-year-old subjects (31 men and 39 women) were included in the study group. All subjects were completely independent or independent with minimal assistance in activities of daily living (ADL), as determined after applying the Barthel index of ADL. The data series were statistically processed using descriptive statistics (univariate analysis) and inferential statistical methods (the t test for unpaired groups, with effect size measure - Cohen's d and the ratio of the means method). The decline of the relative HGS between the two age groups can be expressed by values close to the GR value (p 
ISSN:1471-2318
1471-2318
DOI:10.1186/s12877-018-0991-0