Format

Send to

Choose Destination
See comment in PubMed Commons below
Arch Phys Med Rehabil. 2001 Jul;82(7):872-8.

Velocity training induces power-specific adaptations in highly functioning older adults.

Author information

1
Travelers Center on Aging, University of Connecticut Health Center, Farmington, CT, USA.

Abstract

OBJECTIVE:

To test the efficacy of high-velocity training in healthy older persons.

DESIGN:

A 12-week randomized trial, with subjects blocked for gender and residence, comparing high-velocity resistance training with a self-paced walking program.

SETTING:

Retirement community.

PARTICIPANTS:

Forty-three volunteers over the age of 70 years.

INTERVENTION:

Power group: high-velocity leg exercises 3 times weekly with weekly increases in resistance combined with 45 minutes of moderate, nonresistance exercise weekly. Walking group: moderate intensity exercise 30 minutes daily, 6 days weekly.

MAIN OUTCOME MEASURES:

Variables measured included leg press peak power and leg extensor strength. Functional performance outcomes included: 6-minute walk distance, Short Physical Performance Battery, Physical Performance Test, and Medical Outcomes Study Short-Form Health Survey.

RESULTS:

Peak power improved 22% (p =.004) in the power group (3.7 +/- 1.0 W/kg to 4.5 +/- 1.4 W/kg) but did not change in the walking group (3.99 +/-.76 W/kg to 3.65 +/-.94 W/kg). Leg extensor power at resistance of 50%, 60%, and 70% of body weight increased 50%, 77%, and 141%, respectively, in the power group (p <.0001, repeated-measures analysis of variance). Strength improved 22% in the power-trained individuals and 12% in the walkers (p <.0001). Training did not improve functional task performance in either group. One subject developed a radiculopathy during training.

CONCLUSIONS:

Resistance training focusing on speed of movement improved leg power and maximal strength substantially, but did not improve functional performance in healthy high-functioning older volunteers.

PMID:
11441371
DOI:
10.1053/apmr.2001.23838
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Support Center