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VR을 이용한 균형능력 측정장비의 성능평가

Performance Evaluation of Balance Ability Equipment Using VR

대한통합의학회지 2020년 8권 3호 p.33 ~ 41
윤상철, 안호원, 안택원, 최해성, 이병권, 서동권, 이규환, 정상우, 이재훈,
소속 상세정보
윤상철 ( Yoon Sang-Cheol ) - Daejeon University Industrial-University Cooperation Foundation
안호원 ( An Ho-Won ) - Daejeon University Industrial-University Cooperation Foundation
안택원 ( Ahn Taek-Won ) - Daejeon University College of Oriental Medicine Department of Sasang Constitutional Medicine
최해성 ( Choi Hae-Sung ) - Konyang University Graduate School Department of Public Health and Welfare
이병권 ( Lee Byoung-Kwon ) - Konyang University Department of Physical Therapy
서동권 ( Seo Dong-Kwon ) - Konyang University Department of Physical Therapy
이규환 ( Lee Kyu-Hwan ) - Konyang University Department of Disaster Safety and Fire
정상우 ( Jung Sang-Woo ) - Gimcheon University Department of Sports Rehabilitation
이재훈 ( Yi Jae-Hoon ) - Sunkyul University College of Faidea

Abstract


Purpose : Conventional Balance Measurement can only measure the center of gravity and the shaking movement of the body. As a result, it has the disadvantages of not responding to visual changes and blocking functions of variables. This study was carried out to evaluate the performance of new equipment that measures the balance of the body using changes in body segment and pressure using the acceleration sensor to compensate for the disadvantages of the existing equipment.

Methods : To this end, balance ability was measured in 43 healthy male/female adults without orthopedic injuries and nervous system damage in the last 6 months. in a situation where the visual information was restricted by Virtual Reality (VR) gear, all subjects measured and evaluated the balance ability utilizing the new equipment. Balance measurement (Prime Medilab, Korea) and Wii fit (Nintendo, Japan) were used to measure the balance ability of the subjects, and the balance ability test was performed in 4 postures using each device for data acquisition. The test duration for each posture was 30 seconds. For data acquisition, the average value of three experiments measured using each equipment was analyzed, and the statistical test was performed using the independent sample and the corresponding sample t-test, and the significance level was set to α=.05.

Results : As a result of measuring the balance ability using individual equipment, blocking visual information using VR gear, the average speed, maximum speed, and moving area of the COP increased equally. It was found that the obtained absolute size of the result in Wii was somewhat larger than that of BM.

Conclusion : It is considered that in the future research, it is necessary to measure changes in the body's center of gravity through image analysis, etc., to make clear comparison and evaluation of the usability.

키워드

COP; stability; visual change; VR gear; balance

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