• Title/Summary/Keyword: Virtual Reality

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Effects of Virtual Reality Exercise Program on Balance, Emotion and Quality of Life in Patients with Cognitive Decline

  • Lee, Geun-Ho
    • The Journal of Korean Physical Therapy
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    • v.28 no.6
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    • pp.355-363
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    • 2016
  • Purpose: In this study, we investigated the effectiveness of a 12-week virtual reality exercise program using the Nintendo Wii console (Wii) in improving balance, emotion, and quality of life among patients with cognitive decline. Methods: The study included 30 patients with cognitive decline (12 female, 18 male) who were randomly assigned to an experimental (n=15) and control groups (n=15). All subjects performed a traditional cognitive rehabilitation program and the experimental group performed additional three 40-minute virtual reality based video game (Wii) sessions per week for 12 weeks. The berg balance scale (BBS) was used to assess balance abilities. The short form geriatric depression scale-Korean (GDS-K) and the Korean version of quality of life-Alzheimer's disease (KQOL-AD) scale were both used to assess life quality in patients. Statistical significance was tested within and between groups before and after treatment, using Wilcoxon signed rank and Mann-Whitney u-tests. Results: After 36 training sessions, there were significant beneficial effects of the virtual reality game exercise on balance (BBS), GDS-K, and KQOL-AD in the experimental group when compared to the control group. No significant difference was observed within the control group. Conclusion: These findings demonstrate that a virtual reality-training program could improve the outcomes in terms of balance, depression, and quality of life in patients with cognitive decline. Long-term follow-ups and further studies of more efficient virtual reality training programs are needed.

Comparison of the Effects of Task-oriented training and Virtual reality training on upper extremity function, balance ability, and depression in stroke patients (과제지향적 상지 운동과 가상현실 훈련이 뇌졸중 환자의 상지 기능과 균형, 우울감에 미치는 영향 비교)

  • Song, Gui-bin;Park, Eun-cho
    • Journal of the Korean Society of Physical Medicine
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    • v.11 no.1
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    • pp.115-125
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    • 2016
  • PURPOSE: The purpose of this study was to compare the effects of task-oriented training and virtual reality training on upper extremity function, balance ability, depression in stroke patients. METHODS: Forty stroke patients were randomly allocated into a task oriented training group (TTG, n = 20), a virtual reality training group (VRG, n = 20). Both groups received the usual physical therapy. In addition, TTG patients underwent task training such as sweeping the table, cup stacking, carrying wood block. VRG patients underwent virtual reality training using X-box kinect. Both groups received 30 minutes of training per day, five times per week, for twelve weeks. RESULTS: After intervention, both groups showed significant improvement on upper extremity function, balance ability, and depression. VRG showed more improvement on upper extremity function, balance ability, and depression than TTG. CONCLUSION: According to the results of this study, task-oriented training and virtual reality training are feasible and suitable for stroke patients. And virtual reality training is more effective method than task oriented training.

The Nature of Flow in Virtual Reality Education: Based on A Grounded Theory Approach (가상현실 교육에서 몰입의 생태: 근거이론적 접근을 중심으로)

  • Choi, Sung-Ho;Won, Jong-Seo
    • The Journal of the Korea Contents Association
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    • v.17 no.11
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    • pp.446-460
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    • 2017
  • The purpose of this study is to discover the nature of users' flow experience in virtual reality education services. To this end, we analyzed the factors that affect the user's immersion in virtual reality by applying grounded theory, which is one of the qualitative research method. An experiment was conducted on 11 subjects who were interested in conducting virtual reality education, and conducted interviews after experiments. All of the interviews were documented and configured to construct a paradigm model through the steps of opening coding, axial coding, selective coding. Based on the results, it presents suggestions for future virtual reality education services.

A Study on the Development of Multi-User Virtual Reality Moving Platform Based on Hybrid Sensing (하이브리드 센싱 기반 다중참여형 가상현실 이동 플랫폼 개발에 관한 연구)

  • Jang, Yong Hun;Chang, Min Hyuk;Jung, Ha Hyoung
    • Journal of Korea Multimedia Society
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    • v.24 no.3
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    • pp.355-372
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    • 2021
  • Recently, high-performance HMDs (Head-Mounted Display) are becoming wireless due to the growth of virtual reality technology. Accordingly, environmental constraints on the hardware usage are reduced, enabling multiple users to experience virtual reality within a single space simultaneously. Existing multi-user virtual reality platforms use the user's location tracking and motion sensing technology based on vision sensors and active markers. However, there is a decrease in immersion due to the problem of overlapping markers or frequent matching errors due to the reflected light. Goal of this study is to develop a multi-user virtual reality moving platform in a single space that can resolve sensing errors and user immersion decrease. In order to achieve this goal hybrid sensing technology was developed, which is the convergence of vision sensor technology for position tracking, IMU (Inertial Measurement Unit) sensor motion capture technology and gesture recognition technology based on smart gloves. In addition, integrated safety operation system was developed which does not decrease the immersion but ensures the safety of the users and supports multimodal feedback. A 6 m×6 m×2.4 m test bed was configured to verify the effectiveness of the multi-user virtual reality moving platform for four users.

Effects of Virtual Reality-based Exercise on Static Balance and Gait Abilities in Chronic Stroke (가상현실을 이용한 재활 운동이 뇌졸중 환자의 정적 균형 및 보행에 미치는 효과)

  • Shin, Won-Seob;Song, Chang-Ho
    • The Journal of Korean Physical Therapy
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    • v.21 no.3
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    • pp.33-40
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    • 2009
  • Purpose: This study examined the effects of a virtual reality-based exercise program on the functional recovery of balance and gait in chronic stroke subjects. Methods: A total of 42 chronic stroke patients were enrolled in this study. The participants were allocated randomly to 2 groups: a VR (n=22) and control group (n=20). Both groups received treadmill training for 3 sessions (10 minutes each), 30 minutes per week over a 6 week period. The VR group practiced additional virtual reality programs consisting of 3 programs for 10 minutes each. The data was analyzed using a paired t-test and independent t-test to determine the statistical significance. Results: The virtual reality-based exercise group showed significant increases in gait velocity, cadence and stride length compared to the control group (p<0.05). However, there were no significant differences in static balance. Conclusion: These results support the perceived benefits of exercise programs that incorporate virtual reality to augment the balance and ambulation of stroke patients. Therefore, virtual reality is feasible and suitable for stroke patients

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Effects of virtual reality cognitive rehabilitation program on cognitive function, physical function and depression in the elders with dementia

  • Moon, Hyun Ju;Choi, Yoo Rim;Lee, Sung Kook
    • Journal of International Academy of Physical Therapy Research
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    • v.5 no.2
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    • pp.730-737
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    • 2014
  • The aim of this study is to examine the effects of virtual reality cognitive rehabilitation program on cognitive function, physical function and depression of long-term care insurance nongrading elderly dementia using Daytime protection service. For achieve this purpose, 30 dementia elderly were randomly assigned in to the experimental group(n=15)and control group(n=15). All subjects performed a general therapeutic exercise and 20- 30minutes takes virtual reality cognitive rehabilitation program were conducted with experimental group 2 times a week for 8 weeks. The intervention effects were measured by using cognitive function is mini-mental states examination-Korean version(MMSE-K), visual perception is MVPT(Motor-Free Visual Perception Test), Berg's balance scales(BBS), depression test GDS-K and lower limb strength. The results of study represented that the training group showed significant improvement in MMSEK( p<.05), visual perception(p<.05), balance(p<.05), lower limb strength(p<.05) and depression (p<.05). In conclusion, the virtual reality cognitive rehabilitation training using improves visual perception included cognitive function, physical function included balance, and lower limb strength and depression. These results suggest that virtual reality training using virtual reality cognitive rehabilitation program is feasible and suitable for mild dementia.

Towards Designing Human Interactions for Learning Support System using Virtual Reality Technology

  • Iwane, Noriyuki
    • International journal of advanced smart convergence
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    • v.3 no.1
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    • pp.11-14
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    • 2014
  • We have been designing human interactions for some learning support system or education system. The design is based on a symbol grounding model. The model is applicable to many learning domains using virtual reality technology. The design policy is simple and compact. In order to realize the policy we use/reuse some devices from the viewpoint of virtual reality. This paper introduces basic ideas and explains several example cases based on the idea.

Computer Graphics and Virtual Reality Research in NCTU

  • Shih, Zen-Chung
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • pp.129-140
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    • 1998
  • There is considerable research activity related to computer graphics and virtual reality within the National Chiao Tung University (NCTU), Hsinchu, Taiwan. In this article, we describe the history of computer graphics at NCTU and report on our current research topics and future works. Besides we also briefly outline the research works on computer graphics and virtual reality within universities in Taiwan.

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Computer-generated integral imaging system used in virtual reality (가상현실에 이용할 수 있는 컴퓨터 생성 집적 영상 시스템)

  • Seok, Myeong-Hun;Min, Seong-Uk
    • Proceedings of the Optical Society of Korea Conference
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    • pp.158-159
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    • 2005
  • Three-dimensional(3D) integral imaging system which can be used in a virtual reality system is proposed. The proposed system uses a new image mapping algorithm which can achieve the real time processing, which is indispensable for the virtual reality system. 3D images generated by the advanced graphic software such as OpenGL API can be directly used without complex adaptation. Therefore, the computer-generated integral imaging system using the proposed mapping algorithm can be successfully applied to virtual reality.

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Postural Balance Rehabilitation using Virtual Reality Technology (가상현실기술을 이용한 자세균형재활훈련에 관한 연구)

  • 이정수;정진석
    • Journal of Biomedical Engineering Research
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    • v.17 no.3
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    • pp.313-318
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    • 1996
  • We proposed a new system for the postural balance rehabilitation training. For the purpose, we used the virtual hiking system using virtual reality technology. We evaluated the system by measuring the parameters such as path deviation, path deviation velocity, cycling time, and head movement. From our results, we verified the usefulness of virtual reality technology in rehabilitation. Our results showed that this system was effective postural balance rehabilitation training device and might be useful as the clinical equipment.

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