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A fatigue resistance test for elderly persons based on grip strength: reliability and comparison with healthy young subjects

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Abstract

Background and aims: Although a wide variety of protocols are available for evaluating skeletal muscle fatigue resistance, they often necessitate important technological resources or are too complicated for elderly subjects. We present here a new test, designed for elderly persons, based on maintaining maximal voluntary grip strength as long as possible. The aim of the study was to determine the reliability of this test procedure in hospitalized geriatric patients and in young healthy persons. Methods: Fatigue resistance was considered as the time in which grip strength decreases to 50% of its maximum value. Twenty geriatric, hospitalized patients (age 83±6 yrs) and thirty-nine young, healthy persons (age 23±4 yrs) were evaluated for fatigue resistance by two different observers. Height, weight and body mass index were determined for each participant and the current amount of sports activity was recorded in the young subjects. Results: All participants were able to perform the test. Inter- and intra-rater reliability in both subgroups was good to excellent, with ICC(3,1) values ranging from 0.77 to 0.94. No significant differences in inter- and intra-rater measurements were found, except for inter-observer evaluations of the dominant hand in hospitalized geriatric patients. No significant relationships were found between fatigue resistance and maximal grip strength, anthropometrics or gender. Conclusions: The proposed fatigue resistance test is a reliable tool to evaluate geriatric hospitalized patients as well as young, active and healthy persons. Fatigue resistance scores are not related to gender, maximal strength or anthropometrics within the observed subgroups.

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Correspondence to Tony Mets MD, PhD.

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Bautmans, I., Mets, T. A fatigue resistance test for elderly persons based on grip strength: reliability and comparison with healthy young subjects. Aging Clin Exp Res 17, 217–222 (2005). https://doi.org/10.1007/BF03324600

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  • DOI: https://doi.org/10.1007/BF03324600

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