SEARCHOTHERgeriatrics, internal medicine

other·geriatrics, internal medicine, epidemiology, observational study, preclinical research·PMC10562762

Which trunk muscle parameter is the best predictor for physical function in older adults?

Heliyon · 4 authors, 2 centres

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TL;DR

Physical function was evaluated using walking speeds, sit-to-stand, timed up and go, and postural sway.

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Physical function was evaluated using walking speeds, sit-to-stand, timed up and go, and postural sway. Linear regression analysis, adjusted for age and sex, showed that relative back extension strength was the most consistent significant predictor for all physical function tests (p = 0.004–0.04) except postural sway. Relative trunk flexion strength was only related to normal walking speed (p = 0.024), and trunk lean mass was related to timed up and go (p = 0.024). Sex was not a significant predictor for any physical function. The findings emphasize that relative back extension strength is a key correlate of physical function in older adults.

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other

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geriatrics

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AI pipeline

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100% · A

ORIGINAL PAPER

PMC10562762

Which trunk muscle parameter is the best predictor for physical function in older adults?

Heliyon

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ABSTRACT

Abstract Background Despite preliminary evidence demonstrating the relevance of trunk muscle strength for physical function in older adults, it is not clear which muscle-related trunk parameter is the best predictor for physical functions. Therefore, this study aimed to compare trunk muscle morphology or strength parameters regarding their predictive ability for physical functions. Methods Seventy-four older adults (38 men, 36 women, mean age 76.85 years) were tested for maximum absolute and relative isokinetic trunk flexion and extension strength, trunk lean mass, and trunk muscle quality. Functional assessment included normal and fast walking speed, repeated sit-to-stand transfer, timed up and go, and postural sway during a closed-feet and a semi-tandem stance adjusted for body height. Pearson's correlations were used to compare relationship between trunk strength adjusted and unadjusted for body weight to physical functions. Linear regression analysis including sex and age as co-variables was performed between trunk muscle and functional test parameters. Results Relative back extension strength was the most consistent significant predictor for all physical function tests (p = 0.004–0.04) except for postural sway. Relative trunk flexion strength was related to normal walking speed (p = 0.024). Trunk lean mass was related to timed up and go performance (p = 0.024). Conclusion Relative back extension strength is associated with better performance in nearly all standard tests for physical function in older adults, while trunk flexion strength and lean mass seem to play a minor role. Our findings emphasize the importance of trunk muscle strength, especially the back extensor muscles, for physical function in older adults. Keywords: Back extension strength, Trunk flexion strength, Relative strength, Trunk lean mass, Trunk muscle quality

CITATION EXPORT

Andreas Stotz, Joel Mason, Andreas Groll et al.. Which trunk muscle parameter is the best predictor for physical function in older adults?. Heliyon. (2023). https://doi.org/10.1016/j.heliyon.2023.e20123

AUTHORS

4 · 2 CENTRES

Andreas Stotz, Joel Mason, Andreas Groll, Astrid Zech

aDepartment of Human Movement Science and Exercise Physiology, Institute of Sport Science, Friedrich Schiller University Jena, Seidelstraße 20, 07749, Jena, Germany
bDepartment of Statistics, TU Dortmund University, Vogelpothsweg 87, 44227, Dortmund, Germany