4.5 Article

Correlation between Physical Performance and Tensiomyographic and Myotonometric Parameters in Older Adults

Journal

HEALTHCARE
Volume 11, Issue 15, Pages -

Publisher

MDPI
DOI: 10.3390/healthcare11152169

Keywords

elderly; physical functional performance; tensiomyography; myotonometry; muscle quality

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This study examines the correlation between physical performance and muscle strength with variables obtained from tensiomyography and myotonometry. The results indicate that functional tests should be prioritized in assessing older adults, but further research on muscle quality using technology is recommended.
Background: To examine the correlation between physical performance and muscle strength and the variables obtained from tensiomyography and myotonometry. Methods: Fifty-two older adults able to complete functional tests participated in this observational study. Variables of maximal radial muscle displacement (Dm) and contraction time (Tc) (using tensiomyography) and muscle stiffness (using myotonometry) of the rectus femoris and vastus lateralis muscles were assessed. Physical performance (Short Physical Performance Battery, Timed Up and Go, Five Times Sit to Stand, and walking speed), isometric knee extension strength, and grip strength were assessed. A correlation analysis was performed between all the variables. Results: A significant correlation between the Short Physical Performance Battery and the rectus femoris (rho = 0.491) and vastus lateralis Dm (rho = 0.329) was found. Significant correlations between the Five Times Sit to Stand Test and the Dm values of the rectus femoris (rho = -0.340) and Dm (rho = -0.304), and stiffness (rho = -0.345) in the vastus lateralis, were also found. No significant correlations were found between tensiomyography and myotonometry, the Timed Up and Go, and walking speed, nor between tensiomyography and myotonometry and grip strength or isometric knee extension strength. Conclusions: Functional tests should be prioritized in the assessment of older adults, but further research into muscle quality using technology is advisable.

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