• 국제물리치료학회지
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• 제1권2호
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• pp.176-184
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• 2010

This study was to investigate the effects of upper and lower limb composing patterns of PNF(proprioceptive neuromuscular facilitation) on the static balance ability by 20 subjects for 6 weeks. This study was measured left one leg standing and right one leg standing with closed eyes on Good Balance system. These results led us to the conclusion that the mean speed of X, Y direction, COP(center of Pressure) velocity moment showed a statistical decrease when applying post-exercise. The above results from this study indicated that upper and lower limb composing patterns of PNF exercise has improved the static balance ability. As a result, this study showed that upper and lower limb composing patterns exercise improve the ability of balance in young adults. Based on this study, it may be applied to old people.

• 대한물리치료과학회지
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• 제16권4호
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• pp.49-57
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• 2009

Background: The purpose of this study was to assess the test-retest reliability of balance measurements in older adults using balance measurement system(Good Balance). Methods: The subjects consisted of 49 female and 20 male in community-dwelling older adults. This study used a repeated-measure design. Each subject completed all the different tests once and they were then repeated with 2 minutes in between. Repeated two-ways analysis of variance(ANOVA), representing two test times and both sexes, was calculated for each of the two dependent variables. Intraclass correlation coefficients(ICCs) were used to assess the test-retest reliability. Results: 1) There was not significant difference between test and retest for mediolateral sway speed and anterioposterior sway speed under conditions of normal standing with eyes open, normal standing with eyes closed and semitandem standing with eyes open. There was not significant difference between males and females for mediolateral sway speed and anterioposterior sway speed under conditions of normal standing with eyes open, normal standing with eyes closed and semitandem standing with eyes open. There were not the interaction effects between genders and test time under three conditions. 2) The reproducibility between test and retest was excellent for anterioposterior sway speed(ICC=.77) under condition of normal standing with eyes open, and for mediolateral sway speed(ICC=.76) and anterioposterior sway speed(ICC=.84) under condition of semitandem standing with eyes open. The reproducibility between test and retest was fair to good for mediolateral sway speed(ICC=.64) under condition of normal standing with eyes open, for mediolateral sway speed(ICC=.63) and anterioposterior sway speed(ICC=.75) under condition of normal standing with eyes closed. Conclusion: Balance tests in older adults using balance measurement system(Good Balance) demonstrated acceptable levels of reliability.

• 대한물리의학회지
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• 제11권3호
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• pp.133-139
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• 2016

PURPOSE: The purpose of this study is to examine the impact of balance training on a three-dimensional balance trainer that provides the up-and-down vertical movement of the knee joint and left-and-right horizontal movement, along with visual feedback on the functional ability of children with spastic cerebral palsy (CPs). METHODS: 8 CPs participated in this study. The experiment was implemented for 40 minutes, three times a week for a total of six weeks. The subjects received general physiotherapy for 15 minutes in each session focused on balance and walking, as based on the neuro-developmental treatment theory. Balance training was performed for 20 minutes on a three-dimensional balance trainer where knee joint movement providing visual feedback is applied. The evaluations were conducted before and after the test, and posture sway was measured using 10 Meter Walking Test (10MWT), Timed Up & Go Test (TUG), and the Good Balance System to evaluate the functional ability and balance of the subjects RESULTS: 10MWT was not statistically significant (p>.05). On the contrary, TUG and postural sway indicate static balance showed a statistically significant decrease (p<.05). In a static balance test using the Good Balance System, the average moving speed statistically significantly decreased in the AP and ML directions (p<.05), and the mean velocity moment also significantly decreased (p<.05). CONCLUSION: These findings suggested that balance training using the three-dimensional balance trainer, with the features of visual feedback and up-and-down knee joint movement effects on increasing dynamic and static balance.

• The Journal of Korean Physical Therapy
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• 제29권3호
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• pp.142-144
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• 2017

Purpose: Few studies have addressed the effect of diurnal circadian rhythms on postural stability, and thus the aim of the present study was to examine circadian effects on static and dynamic postural stability in young adults. Methods: Twenty-four subjects (9 men, 11 women: age=$22.20{\pm}1.77$, height=$167.20{\pm}10.47$, weight=$59.85{\pm}10.66$) from a university community volunteered for this study. Static and dynamic balance testing, which recorded using a Good Balance system (Good Balance, Metitur Ltd, Finland) was conducted at 9:00, 13:00, and 17:00 hours on two consecutive days, and the sequencing of static and dynamic balance tests were randomized. Results were analyzed using the non-parametric one-way repeated Friedman test in SPSS version 18.0 (SPSS Inc., Chicago, IL, USA), and variable found to be significant were subjected to Wilcoxon post hoc testing. Results: Static and dynamic balance showed significant difference at the three times assessments (test at 9:00, 13:00, and 17:00) during circadian. In the post hoc test of static (anteroposterior distance, mediolateral distance and COP (center of pressure) velocity) and dynamic balance (performance time), 13:00 was the longer and faster than 9:00. Conclusion: These results indicated that control of postural balance is influenced by diurnal circadian rhythms, and confirm that control of postural balance is more effective and better performance in the 09:00 hours than 13:00 hours or 17:00 hours.

• 한국산학기술학회논문지
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• 제18권12호
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• pp.597-604
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• 2017

본 연구의 목적은 만성 뇌졸중 환자를 대상으로 전정자극훈련 프로그램이 정적 균형 및 동적 균형에 미치는 영향을 알아보는 것이다. 본 연구는 2014년 7월 15일부터 9월 6일까지 진행하였으며, 대상자는 뇌졸중 진단을 받은 환자 20명이 본 연구에 참여하였고, 무작위로 Group I(일반운동치료, n=10)과 Group II(전정자극훈련, n=10)로 나누었다. 두 군 모두 주 3회, 회당 40분씩 6주간 치료적 중재를 실시하였다. 균형 능력은 Good Balance System을 이용하여 정적 균형 및 동적 균형을 측정하였으며, 중재 전과 후를 비교하였다. 연구 결과, 전정자극 훈련군에서는 눈감고 선자세의 좌우 및 전후 균형, 눈뜨고 선자세의 좌우 및 전후 균형, 이동시간, 이동거리에서 통계학적으로 유의한 차이를 보였고, 일반운동 치료군에서는 눈뜨고 선자세의 좌우 균형을 제외한 모든 항목에서 통계학적으로 유의한 차이는 보이지 않았다. 결론적으로, 본 연구에서는 전정자극 훈련은 만성 뇌졸중 환자의 정적 균형 능력과 동적 균형 능력 향상에 긍정적인 영향을 미쳤으며, 이러한 뇌졸중 환자의 균형능력 향상을 위한 치료프로그램에 다양한 방법으로 활용될 수 있을 것이다.

• 대한물리치료과학회지
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• 제25권1호
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• pp.1-10
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• 2018

Background: The purpose of this study was to ascertain the effects of core program exercise on balance in patients with chronic low back pain. Thirty-four subjects participated in this study, these subjects were assigned into two groups, a control group(n=17) and an experimental group(n=17). Methods: The subjects in the control group were received a conservative physical therapy and in the experimental group carried out the core program exercise for 30 minutes per day, three times a week during 6 weeks. In order to evaluate the progresses of balance ability, corresponding variables were measured at two times, pre and 6th week. The balance ability was assessed using GOOD BALANCE system. The collected data were analyzed by using the paired t-test and ANCOVA. In all statistical analyses, significance level, ${\alpha}$ was set by 0.05. Results: The results of this study were as follows: 1) In the position of left standing eye closed, there were significant difference of Y in the control group and X, Y, V in the experimental group. 2) In the position of right standing eye closed, there were significant difference of Y in the control group and X, Y, V in the experimental group. 3) In the position of dynamic balance 1, there were significant difference APV in experimental groups. 4) In the position of dynamic balance 2, there were significant difference MLV in experimental groups. 5) There were significances between the two group of X, V in static balance and APV in dynamic balance. Conclusion: The above results indicated that a core program exercise improved balance abilities in patients with chronic low back. The further studies should be focused at development of various modified forms of the core program exercise in keeping up the improvement effect of this exercise.

• 한국컴퓨터정보학회논문지
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• 제17권3호
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• pp.27-32
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• 2012

평형감각 측정은 물리 치료, 신경, 스포츠 의학 및 재활 의학 분야에서 광범위하게 사용된다. 본 논문은 평형감각 측정 및 재활 훈련 시스템의 개발을 제공한다. 이를 위해, 평형 보드의 아래 표면에 부착된 3축 가속도계 센서를 사용하여 프로토 타입 시스템을 개발하였다. 실험 결과, 시스템은 안정적으로 동작하고 측정자의 평형감각 정도를 잘 나타내었다. 또한 재활 훈련을 위해 다양한 패턴이 용이하게 추가될 수 있다. 이 시스템은 일상적인 평형감각 모니터링에 사용될 수 있으며, 훈련의 효율을 증대하는데 기여할 것이다.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제15권2호
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• pp.126-131
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• 2015

Studies on the control of inverted pendulum type systems have been widely reported. This is because this type of system is a typical complex nonlinear system and may be a good model to verify the performance of a proposed control system. In this paper, we propose the design of two fuzzy logic control systems for the control of a Segway mobile robot which is an inverted pendulum type system. We first introduce a dynamic model of the Segway mobile robot and then analyze the system. We then propose the design of the fuzzy logic control system, which shows good performance for the control of any nonlinear system. In this paper, we here design two fuzzy logic control systems for the position and balance control of the Segway mobile robot. We demonstrate their usefulness through simulation examples. We also note the possibility of simplifying the design process and reducing the computational complexity. This possibility is the result of the skew symmetric property of the fuzzy rule tables of the system.

• 대한물리치료과학회지
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• 제18권2호
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• pp.73-80
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• 2011

Purpose: The purpose of this study was to investigate the correlation between the visual perception ability and the static dynamic balance ability in health elderly. Method: The Motor Free Visual Perception Test-Row Score(MVPT-RS) and MVPT-Process Time(MVPT-PT) were used for evaluating the visual perception abilities. Assessment of the balance ability was taken by using Good Balance System. In the assessment using Good Balance System, X, Y coordinate speed, anterior-posterior direction, medial-lateral direction and Velocity Movement(VM) in standing posture when eye open were measured as static balance abilities. Thirty-seven healthy elderly who live in Gwangyang participated in the experiment for 2 months, from October to November 2010. Results: 1. There were statistically significant differences of MVPT-RS, MVPT-PT, NSB-X, NSB-Y, NSB-VM, OLB-X, and OLB-VM based on the gender(p<0.05). 2. The negative correlations of MVPT-RS:NSB-Y(r=-0.354), MVPT-RS:OLB-X(r=-0.4), MVPT-RS: OLB-Y(r=-0.371), but positive correlations of MVPT-PT:DTB-T showed a statistical significance(r=0.45, p<0.05). 3. The positive correlations of NSB-X:NSB-Y(r=0.54), NSB-X: NSB-VM(r=0.848), NSB-Y:NSB-VM(r=0.531), OLB-X:OLB-Y(r=0.876), OLB-X:OLB-VM(r=0.872), and OLB-Y:OLB-VM(r=0.787) showed statistical significances(p<0.05). Conclusion: These results showed that the visual perception ability was correlated with some balance ability in health elderly. Especially the perception test process time(MVPT-PT) has closely related with the DTB-T. The visual perception ability is considered as a factor on the balance ability in health elderly. Further study will focus on the development of improving program of visual perception ability as an improving method of balancing ability in health elderly.

• 디지털융복합연구
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• 제11권4호
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• pp.361-368
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• 2013

본 연구에서는 스프린터와 스케이터 패턴을 통합한 PNF 통합 패턴 운동이 만성 요통 노인 환자의 정적 균형과 동적 균형의 변화를 알아보고자 실시하였다. 본 연구는 만성 요통의 질환이 있는 노인 환자 34명을 대상으로 하였고, 34명을 무작위로 각각 PNF 통합 패턴 운동군(17명)과 스위스볼 운동군(17명)으로 나누었다. 운동전후에 정적 균형 능력 측정을 위해 GOOD BALANCE system(Metitur Oy, Palokka, Finland, 2003)을 사용하였다. 동적 균형 능력 측정을 위해 기능적 팔 뻗기 검사(functional reach test; FRT)와 일어나 걸어가기 검사(timed up and go test; TUG)를 시행하였다. 정적 균형 능력과 동적 균형 능력의 거의 대부분의 항목에서 유의한 차이를 나타내었다(p<.05). 군간 비교에서도 다수의 항목에서 스위스볼 운동군과 PNF 통합 패턴 운동군 사이에 유의한 차이를 나타내었다(p<.05). 이와 같은 연구 결과로 볼 때 PNF 통합 패턴 운동은 만성 요통 노인 환자의 균형 능력을 개선시키는데 효과적임을 알 수 있었으며, 임상에서 PNF 통합 패턴 운동을 이용할 수 있는 기초 자료를 충분히 제공하였다고 할 수 있을 것이다.