Age-related changes in postural re-balanced ability during a continuous and unexpected perturbation integrated with virtual reality scenes

Chun Ju Chang, Jen Suh Chern, Tsui Fen Yang, Sai Wei Yang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The degeneration of sensory and motor systems due to aging could affect the elderly's posture and increase the risk of falling. The strategies applied to maintain postural stability might be different between ages, especially in the condition requiring both proprioception and vision sensorimotor coupling. This study proposed a novel sensorimotor assessment protocol to evaluate the postural control ability across the aging process, by using the computerized dynamic posturography and the virtual reality (VR) system. Ten young and 20 elderly healthy adults without fall experience were recruited, and were assessed on a continuous-perturbed platform with or without the VR-based visual interference in a random sequence. Measured variables of the center of pressure as well as the weight-bearing ratio were analyzed and compared. Results showed that the postural sway was significantly larger in all subjects under the VR condition, but the young subjects could rapidly adjust the body to regain postural stability in a rhythmic and symmetric manner; whereas, the elderly adults performed less effectively in postural response. We suggested that the application of the multiple sensation disturbances with VR could effectively evaluate the postural control ability among the healthy elderly. The proposed assessing protocol is also recommended for training the sensorimotor integration to improve the dynamic postural control ability.

Original languageEnglish
Article number1650020
JournalBiomedical Engineering - Applications, Basis and Communications
Volume28
Issue number3
DOIs
Publication statusPublished - 2016 Jun 1

Keywords

  • Aging
  • Center of pressure
  • Computerized dynamic posturography
  • Posture control
  • Virtual reality

ASJC Scopus subject areas

  • Biophysics
  • Bioengineering
  • Biomedical Engineering

Fingerprint

Dive into the research topics of 'Age-related changes in postural re-balanced ability during a continuous and unexpected perturbation integrated with virtual reality scenes'. Together they form a unique fingerprint.

Cite this