Maintaining Balance when Looking at a Virtual Reality Three-Dimensional Display of a Field of Moving Dots or at a Virtual Reality Scene

Abstract

Experimental objectiveTo provide a safe, simple, relatively inexpensive, fast, accurate way of quantifying balance performance either in isolation, or in the face of challenges provided by 3D high definition moving visual stimuli as well as by the proprioceptive challenge from standing on a foam pad. This method uses the new technology of the Wii balance board to measure postural stability during powerful, realistic visual challenges from immersive virtual reality.Limitations of current techniquesPresent computerized methods for measuring postural stability are large, complex, slow, and expensive, and do not allow for testing the response to realistic visual challenges.ProtocolSubjects stand on a 6 cm thick, firm, foam pad on a Wii balance board. They wear a fast, high resolution, low persistence, virtual reality head set (Oculus Rift DK2). This allows displays of varying speed, direction, depth, and complexity to be delivered. The subject experiences a visual illusion of real objects fixed relative to the world, and any of these displays can be perturbed in an unpredictable fashion. A special app (BalanceRite) used the same procedures for analyzing postural analysis as used by the Equitest.Power of the techniqueFour simple “proof of concept” experiments demonstrate that this technique matches the gold standard Equitest in terms of the measurement of postural stability but goes beyond the Equitest by measuring stability in the face of visual challenges, which are so powerful that even healthy subjects fall. The response to these challenges presents an opportunity for predicting falls and for rehabilitation of seniors and patients with poor postural stability.Significance for the fieldThis new method provides a simpler, quicker, cheaper method of measurement than the Equitest. It may provide a new mode of training to prevent falls, by maintaining postural stability in the face of visual and proprioceptive challenges similar to those encountered in life.

Analysis of Stability on Single-leg Standing by Wearing a Head Mounted Display

“…In addition, they reported that the virtual setting had no difference in the frontal, lateral, and total COP between the EO and EC states, and similar results have been reported in a study by Chiarovano et al (2015). In the present study, the visual representation of the VR was constructed in the same manner as in the EO state; however, our results were more similar to those of Horlings et al (2009) than to those of Robert et al (2016) and Chiarovano et al (2015).…”

Evaluasi Aplikasi Semi-Immersive Virtual Reality Pada Bidang Pendidikan Menurut Aspek Heuristik Dan Pembelajaran

“…Selain itu, interaksi yang kuat antara manusia dan sistem juga menggunakan Head Mounted Display (HMD). Contoh dari aplikasi VR kategori immersive ini banyak digunakan pada bidang kesehatan seperti uji keseimbangan bagi manula dan disabilitas [13] dan aplikasi VR berkenaan dengan simulasi penanganan pasien oleh dokter [14]. Namun, penggunaan dari aplikasi pada kategori ini memerlukan perhatian khusus seperti lama penggunaan dan teknis penggunaan yang tepat, karena memungkinkan munculnya cybersickness pada penggunanya [15].…”

“…Berdasarkan taksonomi Bloom, ranah kemampuan kognitif ini dibagi ke dalam enam aspek, yaitu: pengetahuan (recall), pemahaman (comprehension), penerapan (application), analisis (analysis), sintesa (synthesis), dan evaluasi (evaluation) [13]. Implementasi dalam kegiatan pembelajaran kemampuan kognitif ini dapat diketahui dengan melakukan tes terhadap siswa berdasarkan materi yang diberikan.…”

Postural stability analysis in virtual reality using the HTC vive

“…For all other uses, contact the owner/author(s). [Chiarovano et al 2015] use an Oculus Rift DK2 and a Wii balance board to measure the center of pressure.…”