Effects of Maximal Isometric and Isokinetic Resistance Training on Strength and Functional Mobility in Older Adults

Background. The aim of the present study was to compare the changes in voluntary strength (isometric, concentric, and eccentric) and functional mobility in response to maximal isokinetic eccentric-only resistance training to those elicited by maximal isometric-only or maximal isokinetic concentric-o...

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Bibliographic Details
Published in:The journals of gerontology. Series A, Biological sciences and medical sciences Biological sciences and medical sciences, 2005-06, Vol.60 (6), p.777-781
Main Authors: Symons, T. Brock, Vandervoort, Anthony A., Rice, Charles L., Overend, Tom J., Marsh, Greg D.
Format: Article
Language:English
Subjects:
Aged
Aged, 80 and over
Effects
Exercise
Female
Humans
Locomotion - physiology
Male
Motor ability
Older people
Outcome Assessment (Health Care)
Physical Education and Training - methods
Walking - physiology
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Summary:Background. The aim of the present study was to compare the changes in voluntary strength (isometric, concentric, and eccentric) and functional mobility in response to maximal isokinetic eccentric-only resistance training to those elicited by maximal isometric-only or maximal isokinetic concentric-only resistance training in older adults. Methods. Twelve women (73 ± 7 years) and 18 men (73 ± 5 years) completed a 12-week training program (three times per week) using a Biodex System 3 dynamometer. Primary outcome measures included peak isometric and isokinetic (concentric and eccentric) knee extensor strength, concentric work, concentric power, stair ascent and descent, and gait speed. Participants were randomly assigned to one of three training groups: isometric-only, isokinetic concentric-only, or isokinetic eccentric-only. Results. All three training groups demonstrated an increase in peak isometric and isokinetic concentric and eccentric strength following 12 weeks of training (p
ISSN:1079-5006
1758-535X
DOI:10.1093/gerona/60.6.777