SAFETYLIT WEEKLY UPDATE

We compile citations and summaries of about 400 new articles every week.
RSS Feed

HELP: Tutorials | FAQ
CONTACT US: Contact info

Search Results

Journal Article

Citation

Hirasaki E, Kubo T, Nozawa S, Matano S, Matsunaga T. Acta Otolaryngol. Suppl. 1993; 501: 25-30.

Affiliation

Department of Biological Anthropology, Faculty of Human Sciences, Osaka University, Japan.

Copyright

(Copyright © 1993, Informa - Taylor and Francis Group)

DOI

unavailable

PMID

8447221

Abstract

In order to elucidate the effect of aging on head and limb motions, 10 young and 8 elderly normal subjects were studied kinesiologically during i) walking, ii) stepping, and iii) hopping, with their eyes open or closed. For this study, a 16-mm high-speed cinecamera and accelerometers were used. Analysis of head movements showed that pitch rotation seemed to counteract the translational movement in the sagittal plane. Although this phenomenon was observed in both the young and elderly groups, the mean pitch position of the head, as measured by the cantho-meatal line relative to the horizontal line, was larger for the elderly group, while head acceleration of elderly people showed a higher frequency in the power spectrum. With eyes closed, the head tended to be tilted downward.


Language: en

NEW SEARCH


All SafetyLit records are available for automatic download to Zotero & Mendeley
Print