• norsk
    • English
  • norsk 
    • norsk
    • English
  • Logg inn
Vis innførsel 
  •   Hjem
  • Fakultet for medisin og helsevitenskap (MH)
  • Institutt for nevromedisin og bevegelsesvitenskap
  • Vis innførsel
  •   Hjem
  • Fakultet for medisin og helsevitenskap (MH)
  • Institutt for nevromedisin og bevegelsesvitenskap
  • Vis innførsel
JavaScript is disabled for your browser. Some features of this site may not work without it.

Postural control strategies in young adults during dual tasking in different stance positions

Dunfjeld, Lars Peder
Master thesis
Thumbnail
Åpne
Masteroppgave_Lars_Peder_Dunfjeld.pdf (1.666Mb)
Permanent lenke
http://hdl.handle.net/11250/300733
Utgivelsesdato
2015
Metadata
Vis full innførsel
Samlinger
  • Institutt for nevromedisin og bevegelsesvitenskap [2265]
Sammendrag
In everything we do, we need to have control over our body’s position in space.

Traditionally, postural control is assumed to need few attentional resources that are

directed instead to other ongoing tasks. Changes in postural control while conducting

a concurrent cognitive task compared to a baseline level of performance is referred to

as dual task interference. The aim of this study was to investigate the effect of dual

tasking on postural control with the following specific question: Does the type and

magnitude of postural control movements depend on the difficulty of concurrent

cognitive tasks, the level of difficulty of stance position, or both? Participants

performed three different difficulty levels of counting (counting backwards in 1s, 3s

and 7s) during two different challenges to postural control (standing with feet hipwidth

apart or close together). Data collected consisted of force plate measurements

and 3-dimensional motion capture. Analyses focused on Centre of Pressure (CoP) and

Principal Component Analysis (PCA), respectively. PCA identified four important

categories of movements: postural movements, breathing movements, head

movements, and multi-segment movements. Stance position, but not dual tasking

affected the CoP measures. In contrast, PCA was capable of detecting significant task

effects on principal velocity and principal acceleration, and some task effects on

principal movements. Furthermore, there was a tendency for higher order PCs to be

more sensitive to changes in task than lower order PCs. The latter, especially ankle

and hip movements dominate CoP measures. In conclusion, stance position

influenced postural control as indicated by changes in CoP measures, but the latter

were not sensitive to cognitive dual tasks. In contrast, PCA clearly distinguished

single task from different levels of counting, even from single task to simple

backwards counting in 1s, especially with respect to principal velocity and

acceleration.
Utgiver
NTNU

Kontakt oss | Gi tilbakemelding

Personvernerklæring
DSpace software copyright © 2002-2019  DuraSpace

Levert av  Unit
 

 

Bla i

Hele arkivetDelarkiv og samlingerUtgivelsesdatoForfattereTitlerEmneordDokumenttyperTidsskrifterDenne samlingenUtgivelsesdatoForfattereTitlerEmneordDokumenttyperTidsskrifter

Min side

Logg inn

Statistikk

Besøksstatistikk

Kontakt oss | Gi tilbakemelding

Personvernerklæring
DSpace software copyright © 2002-2019  DuraSpace

Levert av  Unit