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Comparing the effects of two distinct eccentric modalities to traditional resistance training in resistance trained, higher functioning older adults

Lookup NU author(s): Dr Deb DulsonORCiD

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Abstract

© 2017 Elsevier Inc.Background The effects of eccentric resistance exercise are of interest in the older adult cohort, but to our knowledge, there is no research on the relative effects of different eccentric modalities on a range of outcomes in higher functioning, resistance trained older adults. Methods 33 resistance-trained older adults (aged 67 ± 4.5 years) were randomized into one of three supervised training groups: traditional (TRE), eccentric only (ERE) or eccentrically biased resistance exercise (EBRE) on a 45°, plate-loaded leg press machine. Participants trained twice per week with maximal strength, functional capacity, body composition and blood biomarkers measured before and after the eight-week intervention. Results Both eccentric and concentric strength, and important functional tasks for independent living significantly improved independent of group. Body composition and blood biomarkers were found to significantly improve in the EBRE group only however, no statistical differences were found between groups. Conclusion Compared to traditional resistance training, the two eccentric modalities investigated here were equally effective for improvements in maximum muscular strength, functional capacity, body composition and metabolic biomarkers. When training the resistance trained older adult, very heavy isoinertial external loads (at least 70% of one repetition maximum) are effective irrespective of contraction mode. With heavy strength training, resistance trained older adults can continue to expect improvements in health and function.

Publication metadata

Author(s): Gluchowski A, Dulson D, Merien F, Plank L, Harris N

Publication type: Article

Publication status: Published

Journal: Experimental Gerontology

Year: 2017

Volume: 98

Pages: 224-229

Print publication date: 01/11/2017

Online publication date: 06/09/2017

Acceptance date: 24/08/2017

ISSN (print): 0531-5565

ISSN (electronic): 1873-6815

Publisher: Elsevier Inc.

URL: https://doi.org/10.1016/j.exger.2017.08.034

DOI: 10.1016/j.exger.2017.08.034

PubMed id: 28887154

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