The geriatric hand: correlation of hand-muscle function and activity restriction in elderly

Abstract

On the basis of the importance of hand manipulation in activities of daily living (ADL), deterioration of hand function because of various factors reduces quality and independence of life of the geriatric population. The aim of this study was to identify age-induced changes in manual function and to quantify the correlations between hand-muscle function and activity restriction in the geriatric age group, through grip and pinch measurements and a set of questionnaires. Twenty-four geriatric (aged 65-79 years) volunteers participated in the study. Bilateral grip and pinch strengths have been recorded. To document impairment of manual functions, self-estimated hand function, Duruöz and Dreiser hand indices, Geriatrics-Arthritis Impact Measurement Scale (GERI-AIMS) manual dexterity questionnaires have been completed. Activity restriction and quality of life of these patients were inquired with short form (SF)-36 and Instrumental Activities of Daily Living (IADL) scores. Grip and pinch strengths correlated best with Duruöz and Dreiser indices. Similarly, SF-36 and IADL had higher correlation coefficients for Duruöz and Dreiser indices. A very good correlation between IADL and SF-36 was calculated too. Male and female participants revealed statistically significant differences for grip and pinch strengths as well as self-estimated hand function and SF-36. Another result was that none of our parameters, including grip strength and SF-36 had differed significantly between the 65-70 and 70-79 years age subgroups. However, grip strength displayed statistically significant lower values when compared with young adult mean values of a previous study. Our data in this study support the hypothesis that hand-muscle function correlates with functional dependency in the elderly. Manual function can be determined by grip strength in addition to multiple available functional tools. In this study, Dreiser and Duruöz hand function indices were the best to correlate with ADL and quality of life.

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