TITLE

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

AUTHOR(S)
Merriman, Harold L.; Brahler, C. Jayne; Jackson, Kurt
PUB. DATE
January 2011
SOURCE
Current Gerontology & Geratrics Research;2011, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
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 2min WBV per session at either 2Hz or 26Hz and outcome measures were recorded at 2, 20 and 40min post-WBV. Timed get up-and-go and chair sit-and-reach performances improved post-WBV for both sexes, were significantly different between 2Hz 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 2Hz and 26 Hz treatments, though male subjects showed a distinct trended response. Age and gender should be statistically controlled and both 2 Hz and 26Hz exert a treatment effect.
ACCESSION #
70694932

Tags: AGE;  GENDER;  OLDER people;  RANDOMIZED controlled trials;  CLINICAL trials;  OUTCOME assessment (Medical care)

 

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