| Comparison of power spectrum characteristics of body sway during a static upright standing posture in healthy elderly people and young adults. | |
| | |
MedLine Citation:
|
PMID: 16826669 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
This study was designed to compare peak frequency, mean power frequency, and power spectrum of each frequency band of body-sway time series and velocity time series power spectra between 30 healthy elderly people and 30 young adults and to clarify their frequency characteristics. Peak frequency and mean power frequency differed between groups, being higher for elderly persons, and the difference was marked in the front-back direction. When comparing power spectra of three domains (A: 0.02-0.2 Hz, B: 0.2-2.0 Hz, and C: 2.0-10.0 Hz) of an international standard, a significant age-group difference was found only in the front-back direction. Young adults were higher in the low frequency band (A domain) in sway time series, and the elderly group was higher in the high frequency band (C domain) in body-sway velocity time series. However, almost all power spectra of both groups appeared in the low frequency band. The present results suggested frequency characteristics of healthy people occur in the low frequency band, but the elderly group compared with the young adults had more characteristics in the high frequency band. Their frequency characteristics cannot be properly evaluated by the international standard established to screen disorders. It may be necessary for healthy people to have new evaluation frequency sections when considering power spectrum characteristics of sway time series and sway-velocity time series. |
| | |
Authors:
|
Shinichi Demura; Tamotsu Kitabayashi |
Related Documents
:
|
21398429 - A novel high-throughput in vivo molecular screen for shade avoidance mutants identifies... 9566329 - Inter-individual differences in binaural detection of low-frequency or high-frequency t... 11325129 - Gap detection for similar and dissimilar gap markers. 541279 - Frequency selectivity in bird and man: a comparison among critical ratios, critical ban... 17829469 - Visual observations of nightglow from manned spacecraft. 21356599 - Psb30 is a photosystem ii reaction center subunit and is required for optimal growth in... 22319679 - A novel technique for determining scapulohumeral translation: a case-control and inter-... 21382449 - Walking patterns in parkinson's disease with and without freezing of gait. 1513669 - Anomalous spiral aftereffects: a new twist to the perception of rotating spirals. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Perceptual and motor skills Volume: 102 ISSN: 0031-5125 ISO Abbreviation: Percept Mot Skills Publication Date: 2006 Apr |
Date Detail:
|
Created Date: 2006-07-07 Completed Date: 2006-11-09 Revised Date: 2008-11-21 |
Medline Journal Info:
|
Nlm Unique ID: 0401131 Medline TA: Percept Mot Skills Country: United States |
Other Details:
|
Languages: eng Pagination: 467-76 Citation Subset: IM |
Affiliation:
|
Graduate School of Natural Science and Technology, Kanazawa University, Ishikawa. demuken@ed.kanazawa-u.ac.jp |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Aged Aged, 80 and over Aging / physiology* Electrodiagnosis Female Fourier Analysis Humans Male Middle Aged Postural Balance / physiology* Reference Values Signal Processing, Computer-Assisted Weight-Bearing / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Grip strength of Texas Special Olympians.
Next Document: Physical performance in relation to age, sex, birth order, social class, and sports activities of pr...