Posturography is a fundamental tool to investigate the systems involved in the postural control either in static and in dynamic conditions. In the present paper we decided, by using sinusoidal perturbations of base support around the anteroposterior axis, to analyze the equilibrium parameters widely used in posture control studies - i.e. Compensatory Postural Adjustments (CPAs) and Anticipatory Postural Adjustments (APAs) - in the perspective of defining a range of equilibrium parameters for healthy adult subjects. Fourteen subjects (9 males and 5 females) with no experience of the experimental procedure participated to the experiments. Sine and step movements of the moving base were imposed through a 3-DOF (Degrees Of Freedom) robotic system and both standard and here proposed novel indices were calculated for the evaluation of equilibrium performance. The results suggest that the length of the Center Of Pressure (COP) trajectory is proportional to the frequency of the oscillations of the platform in the sine perturbation trials, while the range of motion of COP is not influenced. Moreover, we found the absence of asymmetries in the healthy subjects when they performed the session with step perturbations.

Dynamic posturography:pertubed equilibruim assessment on healthy adult subjects / Grassi, Lucia; Rossi, Stefano; Cappa, Paolo. - ELETTRONICO. - 30 June 2015:(2015), pp. 64-67. ((Intervento presentato al convegno international symposium on medical measurements and applications- Memea 2015 tenutosi a Turin; Italy [10.1109/MeMeA.2015.7145173].

Dynamic posturography:pertubed equilibruim assessment on healthy adult subjects

GRASSI, LUCIA;ROSSI, STEFANO;CAPPA, Paolo
2015

Abstract

Posturography is a fundamental tool to investigate the systems involved in the postural control either in static and in dynamic conditions. In the present paper we decided, by using sinusoidal perturbations of base support around the anteroposterior axis, to analyze the equilibrium parameters widely used in posture control studies - i.e. Compensatory Postural Adjustments (CPAs) and Anticipatory Postural Adjustments (APAs) - in the perspective of defining a range of equilibrium parameters for healthy adult subjects. Fourteen subjects (9 males and 5 females) with no experience of the experimental procedure participated to the experiments. Sine and step movements of the moving base were imposed through a 3-DOF (Degrees Of Freedom) robotic system and both standard and here proposed novel indices were calculated for the evaluation of equilibrium performance. The results suggest that the length of the Center Of Pressure (COP) trajectory is proportional to the frequency of the oscillations of the platform in the sine perturbation trials, while the range of motion of COP is not influenced. Moreover, we found the absence of asymmetries in the healthy subjects when they performed the session with step perturbations.
File allegati a questo prodotto
File Dimensione Formato  
Grassi_Dynamic-posturography_2015.pdf

solo gestori archivio

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 1.71 MB
Formato Adobe PDF
1.71 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/849856
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? ND
social impact