Volume of confidence ellipsoid: a technique for quantifying trunk sway during stance

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00064203%3A_____%2F15%3A10294498" target="_blank" >RIV/00064203:_____/15:10294498 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21460/15:00229647 RIV/00216208:11130/15:10294498

Result on the web

<a href="http://dx.doi.org/10.1515/bmt-2014-0012" target="_blank" >http://dx.doi.org/10.1515/bmt-2014-0012</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/bmt-2014-0012" target="_blank" >10.1515/bmt-2014-0012</a>

Result language

angličtina

Original language name

Volume of confidence ellipsoid: a technique for quantifying trunk sway during stance

Original language description

The position of the trunk can be negatively affected by many diseases. This work focuses on a noninvasive method of quantifying human postural stability and identifying defects in balance and coordination as a result of the nervous system pathology. We used a three-degree-of-freedom orientation tracker (Xsens MTx unit) placed on a patient's trunk and measured threedimensional (3-D) data (pitch, roll, and yaw) during quiet stance. The principal component analysis was used to analyze the data and to determine the volume of 3-D 95% confidence ellipsoid. Using this method, we were able to model the distribution of the measured 3-D data (pitch, roll, and yaw). Eight patients with degenerative cerebellar disease and eight healthy subjects in this study were measured during stance, with eyes open and eyes closed, and statistical analysis was performed. The results of the new method based on the 3-D confidence ellipsoid show that the volumes related to the patients are significantly larger than the volumes related to the healthy subjects. The concept of confidence ellipsoid volume, although known to the biomechanics community, has not been used before to study the postural balance problems. The method can also be used to study, for example, head and pelvis movements or alignments during stance.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

AK - Sport and leisure time activities

OECD FORD branch

—

Project

<a href="/en/project/VG20102015002" target="_blank" >VG20102015002: Flexiguard</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Biomedizinische Technik. Biomedical engineering

ISSN

0013-5585

e-ISSN

—

Volume of the periodical

60

Issue of the periodical within the volume

2

Country of publishing house

DE - GERMANY

Number of pages

6

Pages from-to

171-176

UT code for WoS article

000352221600009

EID of the result in the Scopus database

2-s2.0-84926673936