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The Relationship Between Age, Strength and Movement Dexterity

Edwards, M.G. and Martin, J.A. and Ramsey, J and Hughes, C and Peters, D.M. (2010) The Relationship Between Age, Strength and Movement Dexterity. In: 8th SEPEX Conference, 15th-17th April, 2010, Granada, Spain.

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Abstract

The literature consistently shows that with increased age, movements tend to become slower (or decrease in dexterity). Some papers suggest that the relationship results from reduced strength with increased age, as there is good evidence that strength also reduces with increased age. Surprisingly, it appears that the relationship between age, strength and movement dexterity has received little investigation, especially using accurate movement recording methods for upper‐limb actions. In the data reported here, we tested 107 adults between 18 and 86 years of age on a variety of fine motor ability movement dexterity measures. In each dependent measure, we first tested the relationships between: (i) age and strength; (ii) age and movement performance, and; (iii) strength and movement performance, and then use multiple linear regression models to determine which of age and strength accounts for the greater variance. The results showed clear relationships between increased age and decreased strength, increased age and reduced movement performance, and decreased strength and reduced movement performance. Standard multiple linear regression analyses showed that both age and strength made significant contributions to the data variance. Moreover, post‐hoc analyses showed that age explained more of the variance for steadiness and line tracking movement tasks, whereas strength explained more of the variance for aiming and tapping movement tasks. The data are discussed in terms of the relationships between age and strength on the resultant movement performance, and the importance of measuring strength when considering the effects of age on dexterity and movement performance.

Item Type: Conference or Workshop Item (Paper)
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Uncontrolled Keywords: age, strength, movement dexterity, movement performance
Subjects: R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
R Medicine > RC Internal medicine > RC1200 Sports Medicine
Q Science > QP Physiology
Divisions: Academic Departments > Institute of Sport and Exercise Science
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Depositing User: Janet Davidson
Date Deposited: 28 Nov 2010 11:54
Last Modified: 28 Nov 2010 12:12
URI: https://eprints.worc.ac.uk/id/eprint/1104

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