High Velocity Power Training Increases Skeletal Muscle Peak Power in Older Women

By Ty Sevin, Sep 01, 2021

< Back to Benefits of Strength Training on Strength and Power Gains in Older Adults

Fielding, Roger; LeBrasseur, Nathan; Cuoco, Anthony; Bean, Jonathan; Mizer, Kelly; Singh, Maria : Human Physiology Lab, Dept. of Health Sciences, Boston University, Sargent College of Health & Rehabilitation Sciences; Dept. of Physical Medicine & Rehabilitation, Spaulding Rehabilitation Hospital, Harvard Medical School, Boston, MA; School of Exercise and Sport Science, University of Sydney, Australia.


The researchers compared changes in skeletal muscle power and strength in thirty women with self-reported disability (aged 73+- 1 yrs), following either 16 weeks of high velocity power training (POW) or standard slow velocity progressive resistant training (STR). Both groups trained 3 times per week with subjects completing 3 sets (8-10 reps) of knee extension (KE) and leg press (LP) exercises at 70% of the 1 RM.


Leg press and knee extension relative training force and total work were similar between both groups (p>0.05). However, POW generated significantly higher power during training sessions compared to STR for leg press (3.7-fold greater, p<0.001) and knee extension (2.1-fold greater, p< 0.001). Leg press and knee extension 1 RM muscle strength increased similarly in both groups as a result of the training. Leg press peak power increased significantly more in POW than in STR (267 W. vs. 139 W, p<0.001). Furthermore, POW resulted in a significantly greater improvement in leg press power at 40, 50, 60, 70, 80, 90% of the 1 RM compared to STR (p<0.05).


The improvements in peak power following the POW intervention were 84% greater for leg press and 34% greater for knee extension when compared to STR in older women. POW and STR demonstrated similar improvement in 1 RM strength. Since improvement in lower extremity peak power may exert a greater influence on age-associated reductions in physical function than other exercise, training interventions could be designed to more closely maximize the capacity to improve peak power in older individuals.

Keiser Equipment Used

Knee extension, Bi-lateral leg press

Published in Journal of American Geriatric Society, 2002 April, vol.50 (4), pp 665-62

Link to Original Research

About the author

Ty Sevin

Director of Human Performance, Education and Research

Articles by Ty Sevin >

With over 25 years of coaching experience at both the collegiate and Olympic levels, Ty Sevin is one of the most influential track and field coaches in the country. Ty has worked for the United States Olympic Committee, serving as the Director of the Track and Field Residency Program at the USOC Olympic Training Center in Chula Vista, CA. He has also served as an assistant coach for Team USA on three separate occasions, for both the men’s and women’s teams. Ty himself was a four-time U.S. Olympics Trials qualifier in javelin. Ty most recently spent four years as the Associate Head Coach at the University of Texas at Austin for both the men’s and women’s track and field teams. Prior to that, he led the men’s and women’s track and cross-country teams at the University of New Orleans and McNeese State.

Currently, Ty applies his vast industry experience to the role of Director of Human Performance, Research and Education for Keiser Corporation, where he consults with college and professional sports teams regarding the utilization of Keiser strength equipment. He is also responsible for creating educational curriculum relating to human performance and overseeing Keiser research projects