• Title/Summary/Keyword: Virtual Reality

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Effects of Virtual Reality Program on Standing-Balance in Stroke with Sensory Deficit (가상현실 프로그램이 감각이상이 있는 뇌졸중 환자의 균형능력에 미치는 영향)

  • Lee, Seong-Ran;Bae, Sung-Soo
    • Journal of the Korean Society of Physical Medicine
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    • v.5 no.1
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    • pp.63-70
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    • 2010
  • Purpose : The purpose of this study was to investigate the effects of virtual reality(VR) program on standing balance in stroke with sensory deficit. Methods : Subjects were assigned randomly to either VR group (n=28) or the control group (n=31) when study began. Both groups were conducted electricity therapy, exercise therapy 5 times per week during six weeks, and a group who have VR group 3 times per week during six weeks. Both groups assessed for standing balance before and after virtual reality program. Results : In standing balance, the virtual reality program which have sensory deficit in stroke group, open eyes from the center area of the body and center line significantly reduced the training period(p<.05). The virtual reality program to instantly move the weight through maximum voluntary safety limits to sensory deficit of virtual reality program(p<.05). Conclusion : Stroke patients with sensory deficit affects the recovery of the standing balance. In addition, virtual reality program was stroke patients with sensory deficit affects the recovery of standing balance.

Effects of Virtual Reality Exercise Program after Applying Taping and Microwave on Balance with Functional Ankle Instability (테이핑과 극초단파를 적용 후 가상현실 운동 프로그램이 기능적 발목 불안정성 균형에 미치는 효과)

  • Jeong, Chanjoo;Kim, Kijong;Yang, Hoesong;Yoo, Youngdae
    • Journal of The Korean Society of Integrative Medicine
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    • v.5 no.3
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    • pp.63-70
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    • 2017
  • Purpose : The purpose of this study was to investigate the effects of the virtual reality exercise program on ankle balance with ankle taping or microwave. Methods : This study was performed on 18 subjects. Eighteen subjects were divided into two groups; conducted virtual reality exercises with taping (n=9), and performed virtual reality exercises after microwave application (n=9). Both groups performed the exercise three times a week for four weeks. The data was analyzed by the Wilcoxon signed-rank test for comparing before and after changes of factors in each group and performed the Mann-Whitney test for comparing groups. Result : Taping and microwave groups were increased dynamic balance after virtual reality exercises (p<.05). There was no significant difference in balance after applying taping and microwave for virtual reality exercises (p<.05). Conclusion : Reducing the frequency of recurrent ankle sprain in functional ankle subjects, it is recommended to perform virtual reality exercise after applying taping and microwave.

The Effects of Virtual Reality Games in Posture Correction Exercise on the Posture and Balance of Patients with Forward Head Posture

  • Son, Ho-Hee
    • Journal of the Korean Society of Physical Medicine
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    • v.15 no.2
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    • pp.11-21
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    • 2020
  • PURPOSE: This study examined the effects of posture improvement exercise using virtual reality programs on the posture and balance of patients with forward head postures. METHODS: Thirty men and women in their 20 s, who had a forward head posture, were divided randomly into a group with posture correction exercise and a group with posture correction exercise combined with virtual reality programs. The posture correction exercise was composed of squats, XCO training, and chin-tuck exercise. In contrast, exercise with virtual reality games involved the Hot Squat, Climbey, and Baskhead programs while wearing a headset. Both groups performed the exercises 15 min a day, three times per week, for four weeks. The balance ability, distance between the acromion and earlobe, and neck joint range of motion were assessed before and after the exercises. RESULTS: Both groups showed significant reductions in the distance between the acromion and the earlobe, along with significant improvements in the range of joint motion. The group that performed the virtual reality exercises showed a significant increase in the limit of stability. Both groups showed a significant decrease in the sway length. In contrast, the group given the virtual reality exercises showed a significant reduction in the sway speed while standing with their eyes closed. CONCLUSION: Exercise applying virtual reality programs can be used in clinical and home programs to correct the postures of individuals with a forward head posture because they can trigger interest in inducing active participation.

Investigating Key User Experience Factors for Virtual Reality Interactions

  • Ahn, Junyoung;Choi, Seungho;Lee, Minjae;Kim, Kyungdoh
    • Journal of the Ergonomics Society of Korea
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    • v.36 no.4
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    • pp.267-280
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    • 2017
  • Objective: The aim of this study is to investigate key user experience factors of interactions for Head Mounted Display (HMD) devices in the Virtual Reality Environment (VRE). Background: Virtual reality interaction research has been conducted steadily, while interaction methods and virtual reality devices have improved. Recently, all of the virtual reality devices are head mounted display based ones. Also, HMD-based interaction types include Remote Controller, Head Tracking, and Hand Gesture. However, there is few study on usability evaluation of virtual reality. Especially, the usability of HMD-based virtual reality was not investigated. Therefore, it is necessary to study the usability of HMD-based virtual reality. Method: HMD-based VR devices released recently have only three interaction types, 'Remote Controller', 'Head Tracking', and 'Hand Gesture'. We search 113 types of research to check the user experience factors or evaluation scales by interaction type. Finally, the key user experience factors or relevant evaluation scales are summarized considering the frequency used in the studies. Results: There are various key user experience factors by each interaction type. First, Remote controller's key user experience factors are 'Ease of learning', 'Ease of use', 'Satisfaction', 'Effectiveness', and 'Efficiency'. Also, Head tracking's key user experience factors are 'Sickness', 'Immersion', 'Intuitiveness', 'Stress', 'Fatigue', and 'Ease of learning'. Finally, Hand gesture's key user experience factors are 'Ease of learning', 'Ease of use', 'Feedback', 'Consistent', 'Simple', 'Natural', 'Efficiency', 'Responsiveness', 'Usefulness', 'Intuitiveness', and 'Adaptability'. Conclusion: We identified key user experience factors for each interaction type through literature review. However, we did not consider objective measures because each study adopted different performance factors. Application: The results of this study can be used when evaluating HMD-based interactions in virtual reality in terms of usability.

A Study on Spatial Aesthetic Characteristics in Modern Fashion Converged with Virtual Reality Technology -Focusing on Fashion Shows, Fashion Exhibitions, and Fashion Design Apps- (가상현실 기술과 융합된 현대패션에 나타난 공간적 미학 특성 연구 -패션쇼, 패션전시, 패션디자인 앱을 중심으로-)

  • Liu, Shuai;Kwon, Mi Jeong
    • Journal of Fashion Business
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    • v.23 no.5
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    • pp.96-110
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    • 2019
  • With the continuous development of artificial intelligence using computers in the Fourth Industrial Age, the virtual space created by virtual reality experiences boosted by the power of artificial intelligence, provides a new experience for us. The purpose of this study is to explore the new aesthetics that the fashion industry provides to users in virtual space created by virtual reality technology. This research method is based on theoretical research on virtual reality technology and virtual space and constructs a research model applied to this research. The scope of this study is the application of virtual reality technology to fashion shows, fashion exhibitions, and fashion design apps on the website of professional virtual reality technology and fashion for the last five years from 2014 to 2019, which actively merged virtual reality technology with modern fashion. We will analyze the cases one by one. The results of this study are as follows. First, this study shows that the constructed virtual space of modern fashion using virtual reality technology creates three kinds of physical space, perceptual space, and imaginary space based on the commutative theory of virtual space formed by Swedish scholar J. $Widestr{\ddot{o}}m$. Second, virtual reality technology applied to fashion shows, fashion exhibitions, and fashion design apps is characterized by four aesthetic characteristics of presence, perceptual expansion, interactivity, and immersion in physical space, perception space, and imagination space.

Virtual Reality Industry Analysis and How to Activate (가상현실 산업 분석 및 활성화 방안에 관한 연구)

  • Song, Eun-Jee
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.22 no.4
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    • pp.656-663
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    • 2018
  • As the virtual reality technology, which has been attracting attention recently in the era of the fourth industrial revolution, is spreading and spreading throughout the society, expectation about virtual reality is gradually increasing. The major big companies such as Samsung and LG in Korea are concentrating on R &D and early ecosystem composition of virtual reality field as well as large global corporations such as Google and Facebook. But in Korea, the environment is not well equipped to compete with the global market and although there are many SMEs and start-up companies related to virtual reality, there are few successful companies. In this study, we analyze the domestic and foreign virtual reality market and industry and present ways of activation on virtual reality industry. We analysis by PEST analysis, SWAT and competitive structure analysis.Based on the analyzed results, ways to revitalize the virtual reality industry are suggested in this paper.

Comparison of the Size of objects in the Virtual Reality Space and real space (가상현실 공간상에서 물체의 크기와 실제 크기간의 비교연구)

  • Kim, Yun-Jung
    • Cartoon and Animation Studies
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    • pp.383-398
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    • 2017
  • Virtual Reality contents are being used as media in various fields. In order for the virtual reality contents to be realistic, the scale of the objects in the virtual reality must be the same as the actual size, and the user must feel the same size. However, even if the size of the character in the virtual reality space is made equal to the size in comparison with the size of the character in the reality, the distortion of the size can occur when the user looks at the object in the image with the HMD. In this paper, I investigate the requirements related to size in virtual reality, and try to find out what difference these requirements have in virtual reality and how the difference affects users. Experiments and surveys to compare the size of objects in virtual reality space and the size of objects in real space were conducted to investigate how scale distortion occurs at distant and near places. I hope that this paper will be a useful research for virtual reality developers.

Effect of Virtual Reality Distraction on Pain and Anxiety in Children during Local Anesthesia (소아환자의 국소마취 시 Virtual Reality 주의분산이 통증 및 두려움에 미치는 효과)

  • Kim, Doosoo;Lee, Sangho;Lee, Nanyoung;Jih, Myeongkwan;Ahn, Jihye
    • JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY
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    • v.48 no.1
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    • pp.95-104
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    • 2021
  • The purpose of this study was to evaluate the effect of virtual reality distraction on pain and anxiety in children during local anesthesia. Local anesthesia was administered to 3 groups: a control group without distraction, a group watching TV, and a group using a virtual reality device. The pulse rate and oxygen saturation rate were measured before and at the time of local anesthesia to assess the patients' pain and anxiety, and the Wong-Baker Faces Pain Rating Scale was completed after local anesthesia. The group using the virtual reality device had a significantly lower heart rate change and lower Wong-Baker Faces Pain Rating Scale score than those in the control group and the group watching TV (p < 0.05). The greatest difference in heart rate change and Wong-Baker Faces Pain Rating Scale score, between the control and virtual reality distraction groups, was seen in 5 - 7-year-olds and a Frankl's behavior rating scale grade of 3. The virtual reality device alleviated pain and reduced anxiety in children during local anesthesia.

Investigating the perception of instructors on the use of virtual reality education (가상현실 교육적 활용에 대한 교수자의 인식조사)

  • Kim, Ji-Hyo;Park, Seong-Man;Lee, Young-Lim;Joo, Mee-Ran;Park, Eun-Seo;Park, Jong-Tae
    • Journal of Digital Convergence
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    • v.19 no.7
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    • pp.11-19
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    • 2021
  • The purpose of the study is to explore a plan for effective education using virtual reality in English education. In order to achieve the purpose of the study, the perception of English education using virtual reality was comprehensively investigated and analyzed for teachers(n=20) in the field of English education. The results of the study reveal the followings: 1) Teachers are positively aware of the necessity of English education using virtual reality, but most teachers complained of a psychological burden on education using virtual reality; 2) negative responses were somewhat higher than positive responses to the expectation that virtual reality-based English content would be practical in the educational field; 3) In order to increase the effectiveness of English education using virtual reality, it is necessary to share experiences for educational experience of virtual reality and need to provide various virtual reality contents; and 4) For virtual reality educational application, there is a high demand for teaching and learning method education and training using virtual reality and provision of guidelines for education using virtual reality.