Posture's impact on virtual walking enhanced by foot vibrations

Summary

This research reveals that synchronized foot vibrations and posture significantly enhance virtual walking experiences for stationary observers, improving self-motion, walking sensation, and embodiment. Standing posture was most effective, but sitting and lying positions also benefited from synchronized vibrations. These findings have practical applications in virtual reality (VR) for training, rehabilitation, and entertainment, offering improved immersion and realism even for users with physical limitations.

Contents

This research has found that synchronized foot vibrations, combined with different postures, can improve the virtual walking experience for stationary observers in virtual reality (VR). Standing posture generally provided a more realistic experience, but sitting and lying (supine) also showed improvements when synchronized vibrations were used. These findings could enhance VR applications in training, rehabilitation, and entertainment by making them more adaptable to users with varying physical conditions. The research was published in Scientific Reports on August 21, 2024.

Virtual walking systems are increasingly important as VR technology advances, especially for users who cannot move freely due to physical limitations. While traditional VR experiences focus on visual, auditory, and tactile cues, this study explored how posture and synchronized foot vibrations impact the effectiveness of these simulations. The goal was to improve the realism of virtual walking under different physical conditions.

The study showed that synchronized foot vibrations enhance sensations of self-motion, walking, and embodiment, especially in a standing posture. However, sitting and lying on the back also benefited, though the differences between these postures were sometimes minimal. These findings suggest that integrating tactile feedback with visual cues can make VR experiences more effective and accessible for a broader range of users.

In the future, these results could help develop more inclusive VR experiences, particularly for people with limited mobility. Potential applications include rehabilitation programs that allow patients to engage in virtual walking exercises from different positions or more realistic VR training simulations. This technology could also make everyday VR entertainment more immersive and accessible, regardless of the user's physical posture.

Funding agency

This work was supported in part by JST ERATO (JPMJER1701), JSPS KAKENHI JP22J21664, and JP23H03882.

Reference:

Nakamura, J., Kitazaki, M. The effect of posture on virtual walking experience using foot vibrations. Scientific Reports, 14:19366 (2024). doi: 10.1038/s41598-024-70229-5

https://www.nature.com/articles/s41598-024-70229-5