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Date Permissions Signed


Date of Award

Spring 2015

Document Type

Masters Thesis

Degree Name

Master of Science (MS)


Health and Human Development

First Advisor

Brilla, Lorraine R., 1955-

Second Advisor

Suprak, David N. (David Nathan)

Third Advisor

San Juan, Jun G.


The purpose of this study was to investigate the effect of a six-week augmented eccentric load program on rate of force development (RFD), center of pressure (COP) excursion and performance in the five-time-sit-to-stand (STS-5) in older adults. Eighteen moderately active older adults, (≥ 60 years) participated in this study. Subjects were separated into two groups; one group added augmented eccentric training in addition to resistance training (AEL) and a resistance training only group (RT). The AEL group participated in a six-week AEL training program that consisted of six lower extremity body exercises. Eccentric phases of each exercise movement were augmented beginning with no weight and increasing by five percent weekly up to 20 percent body weight. AEL group improved the time to complete the clinical STS-5 fall risk assessment test by -2.21 ± 1.50 s, p = 0.03. AEL demonstrated a significant increase in the RFD moving from 785 ± 176 N·s-1 to 1041 ± 187 N·s-1 (p = 0.02) during chair rising. AEL showed significant improvements in M-L and (A-P) excursion from right foot during quiet standing, 0.075 ± 0.07 m to 0.003 ± 0.01 m and 0.157 ± 0.11 to 0.005 ± 0.01. AEL improved M-L excursion in right foot and A-P excursion of left foot compared to baseline, 0.457 ± 0.20 m to 0.012 ± 0.00 m, p =0.002 and 0.465 ± 0.15 m to 0.013 ± 0.01 m, p = 0.0001. Therefore, AEL training may be a beneficial exercise prescription for older adults.





Western Washington University

OCLC Number


Subject – LCSH

Exercise for older people--Physiological aspects; Weight training--Physiological aspects; Isometric exercise--Physiological aspects




masters theses




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