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Article
Systematically Controlling for the Influence of Age, Sex, Hertz and Time Post-Whole-Body Vibration Exposure on Four Measures of Physical Performance in Community-dwelling Older Adults: A Randomized Cross-over Study
Current Gerontology and Geriatrics Research
  • Harold L. Merriman, University of Dayton
  • C. Jayne Brahler, University of Dayton
  • Kurt Jackson, University of Dayton
Document Type
Article
Publication Date
7-1-2011
Abstract

Though popular, there is little agreement on what whole-body vibration (WBV) parameters will optimize performance. This study aimed to clarify the effects of age, sex, hertz, and time on four physical function indicators in community-dwelling older adults (N = 32). Participants were exposed to 2 minutes WBV per session at either 2 Hz or 26 Hz, and outcome measures were recorded at 2-, 20-, and 40-minute post-WBV. Timed get-up-and-go and chair sit-and-reach performances improved post-WBV for both sexes, were significantly different between 2 Hz and 26 Hz treatments (P ≤ 0.05), and showed statistically significant interactions between age and gender (P ≤ 0.01). Counter movement jump and timed one-legged stance performances showed a similar but non-significant response to 2 Hz and 26 Hz treatments, though male subjects showed a distinct trended response. Age and gender should be statistically controlled and both 2 Hz and 26 Hz exert a treatment effect.

Inclusive pages
1-9
ISBN/ISSN
1687-7063
Document Version
Published Version
Comments

Document is made available for download with publisher permission. Documentation is on file.

Publisher
Hindawi Publishing
Peer Reviewed
Yes
Citation Information
Harold L. Merriman, C. Jayne Brahler and Kurt Jackson. "Systematically Controlling for the Influence of Age, Sex, Hertz and Time Post-Whole-Body Vibration Exposure on Four Measures of Physical Performance in Community-dwelling Older Adults: A Randomized Cross-over Study" Current Gerontology and Geriatrics Research Vol. 2011 Iss. 747094 (2011)
Available at: http://works.bepress.com/c_jayne_brahler/3/