Journal
AGING CLINICAL AND EXPERIMENTAL RESEARCH
Volume 34, Issue 9, Pages 2081-2088Publisher
SPRINGER
DOI: 10.1007/s40520-021-01879-y
Keywords
Appendicular skeletal muscle; Bioelectrical impedance analysis; Frailty; Muscle quality; Healthy aging
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Funding
- Ministry of Science and Higher Education [N404 075337]
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The study found a strong correlation between appendicular skeletal muscle mass and functional quality with the risk of prevalence of pre-frailty in elderly individuals, with functional quality having a more significant impact.
Background and aim The rising aging index of many populations necessitates the continuous evolution of geriatric assessment methods, especially the ones used to identify frailty and the risk of frailty. An appropriately early diagnosis of adverse changes in skeletal muscles can reduce the risk of functional limitations in elderly persons. The aim of this study was to assess the correlation between the appendicular skeletal muscle mass and quality, estimated by the bioelectrical impedance analysis method, and the risk of prevalence of the pre-frailty state in elderly persons. Methods One-thousand-and-fifteen subjectively healthy persons aged 60-87 years were tested. Anthropometric measurements and physical fitness and activity measurements were carried out and the frailty phenotype was evaluated. Appendicular skeletal muscle mass was estimated using the bioelectrical impedance analysis method. Muscle quality was assessed through an index correcting strength relative to muscle mass and through the impedance phase angle. The correlation between the muscle mass and quality estimating parameters and the probability of identifying pre-frailty was checked using multiple logistic regression. Results The prevalence of pre-frailty was 38%. The pre-frail persons were found to have a significantly lower muscle mass and quality than the non-frail persons, with the difference in the case of the muscle quality index nearly twice larger than for the muscle mass index. A significant logit model was obtained for pre-frailty prevalence, which was strongly dependent on the appendicular skeletal muscle mass (adjusted odds ratio (OR): 0.43, 95% CI 0.36-0.52, p < 0.001) and functional quality (adjusted OR: 0.26, 95% CI 0.18-0.38, p < 0.001) and less on age (adjusted OR: 1.10, 95% CI 1.07-1.13, p < 0.001). Conclusion The strong correlation between the frailty phenotype and appendicular skeletal muscle mass and functional quality suggests that the two variables should be included in routine geriatric assessment with regard to frailty.
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