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Abstract

BACKGROUND

Vestibular dysfunctions result in a wide range of impairments and can have debilitating consequences on a person’s day-to-day activities. Conventional vestibular rehabilitation is effective but suffers from poor therapy compliance due to boredom. Virtual reality technology can make training more engaging and allow precise quantification of the training process. However, most existing technologies for vestibular rehabilitation are expensive and not suitable for use in patients’ homes and most clinics. In this pilot study, we developed and evaluated the usability of a smartphone-based head-mounted display (HMD) for vestibular rehabilitation and quantified the simulator sickness induced by the system.

METHODS

Two adaptive training games were developed to train discrete and rhythmic head movements in the pitch and yaw planes. The usability and simulator sickness associated with the system were evaluated in a single testing session on healthy subjects and patients with unilateral vestibular dysfunction. Additionally, the head movement kinematics measured during training was also analyzed using different movement quality measures.

RESULTS

A total of 15 healthy subjects and 15 patients underwent testing with the system. Both groups found the system to be highly usable (>80 score on the system usability scale). Following 20–30 min training with the system, healthy subjects reported minimal simulator sickness symptoms. On the other hand, patients reported a higher incidence rate for symptoms, which could have been the result of their vestibular condition.

CONCLUSION

The current study demonstrated the usability and safety of a smartphone-based system for vestibular rehabilitation. The system is compact, and affordable thus has the potential to become an excellent tool for home-based vestibular rehabilitation.

Keywords

Vestibular rehabilitation virtual reality smartphone usability head-mounted display The trial was retrospectively registered with the Clinical Trials Registry - India (Registration number: CTRI/2017/05/008475).

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A Smartphone-based gaming system for vestibular rehabilitation: A usability study

Abstract

BACKGROUND

METHODS

RESULTS

CONCLUSION

Keywords

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References