Effect of age and visual feedback on upper limb reaching precision and kinematics in immersive virtual reality

Everard, Gauthier;Lejeune, Thierry;Batcho, Charles Sebyio
(2023) Journée de la Recherche en Neurosciences — Location: Québec (6.February.2023)

Files

CTRN.pdf
  • Restricted Access
  • Adobe PDF
  • 523.81 KB
Request a copy

Details

Authors
Abstract
Objective: This study aimed to evaluate the effect of visual feedback, age and movement repetition on the course of upper limb (UL) precision and kinematics. Methods: Fifty-one healthy participants were asked to perform 25 trials of a reaching task in immersive VR with and without benefiting from visual feedback of their hand. They were instructed to place, as accurately as possible, a controller in the centre of a virtual red cube. For each trial, the error distance (distance between the controller and the cube), a coefficient of linearity (CL), the movement time (MT), and the SPARC (a movement smoothness index) were calculated. Correlations and multivariate analyses of variance were conducted to assess the influence of visual feedback, age and movement repetition on the course of the error distance, SPARC, CL and MT throughout the 25 trials. Results: Visual feedback of the hand significantly influenced UL reaching precision (p<0.001), MT (p=0.044) and SPARC (p<0.001) but not CL. The error distance evolvement was significantly influenced by age (p=0.027) and visual feedback (p<0.001); CL by movement repetition (p<0.001) and age (p=0.013); SPARC by movement repetition (p<0.001), visual feedback of the hand (p<0.001) and age (p=0.015); and MT by visual feedback (p=0.001) and movement repetition (p=0.001) but not by age (p=0.671). Conclusion: Results of this study demonstrated that visual feedback of the hand and age have a significant influence on the course of UL precision and movement smoothness in immersive VR.
Affiliations

Citations

  • APA
  • Chicago
  • FWB

Everard, G., Lejeune, T., & Batcho, C. S. (2023). Effect of age and visual feedback on upper limb reaching precision and kinematics in immersive virtual reality. Journée de la Recherche en Neurosciences, Québec. https://hdl.handle.net/2078.5/101551