• 한국운동역학회지
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• 제17권2호
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• pp.197-205
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• 2007

The purpose of this study is to analyze the muscle activations and Ground Reaction Force(GRF) in university judo players, and provide the guide of training in Judo. Using surface electrode electromyography(EMG), we evaluated muscle activity in 5 university judo players during the Judo Uke Movements. Surface electrodes were used to record the level of muscle activity in the Tibialis Anterior, Rectus Femoris, Elector Spinae, Gluteus Maximus, Gastrocnemius muscles during the Uke. These signals were compared with %RVC(Reference voluntary contraction) which was normalized by IEMG(Integrated EMG). The Uke was divided into four phases : Kuzushi-1, Kuzushi-2, Tsukuri, Kake. The results can be summarized as follows: 1. The effective Uke Movements needs to short time in the Kake Phase 2. The Analysis of Electromyography of Uke Movements in Supporting Leg; TA(Tibialis anterior) had Higher %RVC in the Kuzushi Phase, RF(Rectus Femoris) had Higher %RVC in the Tsukuri Phase, GM(Gluteus Maximus) had Higher %RVC in the Kake Phase 3. The ground reaction force for Z(vertical) direction was showed increase tendency in Kuzushi phase, Tsukuri phase and decrease tendency in Kake phase.

• 대한정형도수물리치료학회지
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• 제26권1호
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• pp.27-36
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• 2020

Background: Exercise in the quadruped position is performed to improve body and shoulder stability. This study examined the muscle activity of the trunk muscles according to the distance of the weight shift when lifting one leg in the quadruped position. Methods: Ten healthy 20 to 40 years old males were tested as subjects. All subjects moved their body weight to 0, 5, and 10cm on the opposite side of the leg lifter while maintaining the quadruped position. The surface electrodes recorded the electromyography data during the one leg lifting. Results: As the weight shift distance was increased, there was a significant difference in muscle activity of both serratus anterior, multifidus and internal oblique muscles (p<.05). Left and right serratus anterior and right internal oblique were most activated when weight shift distance was 0cm (p<.05). Conclusion: Shoulder and lumbar stabilization exercises should be applied in the absence of a weight shift distance during quadruped exercise.

• The Journal of Korean Physical Therapy
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• 제28권2호
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• pp.101-105
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• 2016

Purpose: The purpose of this study was to determine the effects of group exercise, manual therapy, and a home exercise program on VAS (visual analogue scale), ROM (range of motion) of shoulder, and functional outcome in adhesive capsulitis. Methods: The study was conducted with 45 patients. All subjects were randomly assigned to 3 groups: group exercise (n=15), manual therapy (n=15), home exercise (n=15). The subjects performed an intervention program 3 times a week for 4 weeks a total of 12 times. Outcome measurements were VAS, ROM, and Constant-Murley score outcome measures. Measurements were taken four times, at baseline, 4 weeks later, 8 weeks later, and 12 weeks later. Results: VAS, ROM of the shoulder, and functional outcomes showed improvement in all groups at the final follow-up (p<0.05). VAS and ROM showed greater improvement with group exercise and manual therapy than home exercise, however, there were no significant differences between the two groups (p>0.05). Functional outcomes showed the greatest improvement in group exercise at the final follow-up. This improvement was greater than with manual therapy or home exercise (p<0.05). Conclusion: Group exercise and manual therapy were more effective for improving pain, ROM, and function than home exercise in adhesive capsulitis. In particular, group exercise is more effective in functional recovery than other physiotherapy interventions.

• The Journal of Korean Physical Therapy
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• 제22권5호
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• pp.83-93
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• 2010

Purpose: The purpose of this study was to determine the reliability and validity of the Functional Movement Screen (FMS) for assessing Korean athletes. Methods: A total of 48 patients (37 males and 11 females) participated in this study. Data were acquired after translation of the FMS from English to Korean and cross-cultural adaptation of the this questionnaire. To determine inter-rater reliability, the relationship between the FMS scores obtained by two raters was evaluated using the Kappa coefficient, which was in total agreement with the Intra-Correlation Coefficient (ICC3,1). Concurrent validity was examined by correlating the FMS scores with the Oswestry disability index (ODI) scores and Visual analogue scale (VAS) scores. Results: The raters demonstrated excellent agreement on 7 (above 90%) of the 17 test (72.9 to 97.9%) components. Substantial agreement was seen in 11 of the 17 tests. Two components of the In-line lunge and rotatory stability tests demonstrated moderate agreement. It showed good inter-rater reliability: the Kappa coefficients ranged from 0.42 to 0.97. ICC3,1=0.42~0.99 and 0.93 (total FMS score). Cronbach's alpha for FMS was 0.80. It was not correlated with ODI or VAS. Conclusion: The Korean version of the FMS is a reliable instrument for measuring movement patterns of Korean athletes and for making decisions related to interventions for performance enhancement.

• 제어로봇시스템학회논문지
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• 제16권9호
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• pp.876-882
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• 2010

Stroke patients can't use their hands because of the paralysis their fingers. Their fingers are recovered by rehabilitating training, and the rehabilitating extent can be judged by measuring the pressing force to be contacted with two fingers (thumb and first finger, thumb and middle finger, thumb and ring finger, thumb and little finger). But, at present, the grasping finger force of two-finger can't be accurately measured, because there is not a proper finger-force measuring system. Therefore, doctors can't correctly judge the rehabilitating extent. So, the finger-force measuring system which can measure the grasping force of two-finger must be developed. In this paper, the finger-force measuring system with a three-axis force sensor which can measure the pressing force was developed. The three-axis force sensor was designed and fabricated, and the force measuring device was designed and manufactured using DSP (Digital Signal Processing). Also, the grasping force test of men was performed using the developed finger-force measuring system, it was confirmed that the grasping forces of men were different according to grasping methods.

• 대한물리의학회지
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• 제2권1호
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• pp.73-84
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• 2007

Purpose : The purpose of this study was to determine risk factors and methods in balance assessment associated with fall in older adults. Methods : This article describes many of the tools that can be used to evaluate the physical parameters associated with fall risk in older adults. Results : Composite ratings of performance(Tinetti balance assessment, Guralnik test battery, Berg balance scale, modified-physical performance test) measures the score compounding the balance measure to determine fall risk. Static balance instruments are composed of FICSIT-4 that measures the ability of maintaining foot positions and CTSIB that measures postural stability. Dynamic balance instrument is composed of functional reach test. To measure walking velocity and mobility, 8-foot up-and-go test and walking around two cones are used. We can use 1-RM and to measure muscular strength, isokinetic dynamometery, and 30-second chair stand to measure lower extremity muscle strength. Conclusion : The described instruments are easy to use and widespread. To select and use these tool kits carefully is considered to be helpful in identifying those who are most likely to fall. The final part of the article includes a brief discussion of the potential role of exercise training interventions to improve these physical parameters and prevent falls.

• 한국멀티미디어학회논문지
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• 제12권4호
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• pp.521-529
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• 2009

본 논문은 비전 기반 동작 인식 방법으로 모범 동작의 유형을 모형화하고 이를 이용하여 사용자의 동작을 인식하고 모범동작과 사용자의 동작간의 유사도를 측정하는 방법을 제안한다. 동작 인식을 위하여 은닉 마르코프 모델 기반의 유형화 기법을 통하여 모범 동작의 유형 모델을 구성하고 이를 이용하여 사용자의 동작을 인식한다. 유사도 측정을 위하여 편집 거리 알고리즘을 응용하여 모범 동작과 사용자 동작의 유사도를 측정하고 점수 표기가 가능하도록 하였다. 본 논문에서 제안하는 동작 인식 처리 방법은 평균 93% 이상의 높은 인식율을 보였다. 본 연구의 결과는 동작 인식 기반 게임, 자세인식, 동작의 반복 훈련 및 훈련 달성도 측정을 요하는 재활훈련 시스템 등에 활용 가능하다.

• 대한한의학회지
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• 제33권1호
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• pp.148-159
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• 2012

Objectives: This study investigated the correlation among Postural Assessment Scale for Stroke (PASS), Timed "Up and Go" Test (TUG) and gait (velocity, cadence, step-length, stride-length and single-limb support). Methods: The 70 subjects were assessed on trunk control measured with the use of the PASS, dynamic balance (TUG) and gait function (by GAITRite). The data were analyzed using Pearson product correlation. Results: The PASS total scores were significantly correlated with PASS-M, PASS-C, and PASS-T (r =.80 ~ .88 p<.01). All items of the PASS were significantly correlated with TUG (r = -.63 ~ -.81 p<.01), velocity (r = .44~.58 p<.01), cadence (r =.38 ~.51. p<.01), affected side step length (r = .44 ~.56 p<.01) and affected side stride length (r = .45 ~.59 p<.01). But affected side single-limb support was lowly correlated with PASS-M, PASS-C, PASS-T and PASS-total (r = .25~.36 p<.05). Conclusions: Measures of trunk control were significantly related with values of dynamic balance and gait. Based on these results, trunk control is an essential core component of balance and gait. Trunk control training programs after stroke should be developed and emphasized.

• The Journal of Korean Physical Therapy
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• 제28권4호
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• pp.221-226
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• 2016

Purpose: This study was conducted to evaluate the effects of neck and trunk stabilization exercise on static and dynamic balance in older adults. Methods: A total of 30 older adults participated in this study. Participants were randomly assigned to the neck and trunk stabilization exercise group (NTSG) (n=15) or the trunk stabilization exercise group (TSG) (n=15). The NTSG performed a trunk stabilization exercise added to a neck stabilization exercise that included biofeedback. Both groups received training for 30 minutes per day three times per week for eight weeks. The anterior, posterior limit of stability and sway length was used to measure static balance ability, while the timed up and go (TUG) test was used to measure dynamic balance ability. Results: Participants showed significant differences in sway length, anterior limit of stability, posterior limit of stability, and the results of the TUG test between their pre- and post mediation evaluations (p<0.05). The NTSG showed a more significant increase than the TSG (p<0.05). Conclusion: According to the results of this study, both exercises effectively improved static and dynamic balance ability. However, the neck and trunk stabilization exercise is more efficient for increasing the balance ability of older adults.

• The Journal of Korean Physical Therapy
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• 제28권4호
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• pp.227-231
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• 2016

Purpose: This study was conducted to explore the effects of aerobic exercise on the severity of disease and walking ability in patients with Parkinson's disease. Methods: Twelve patients with Parkinson's disease participated in the study. Participants were randomly assigned to either an aerobic exercise group (n=6) or a self-exercise group (n=6). All participants underwent treadmill training for 30 minutes. In addition, the experimental group (aerobic exercise group) and control group (self-exercise group) participated in a 30 minutes exercise program. In both groups, exercise was performed five times a week for four weeks. Outcome including disease severity (Unified Parkinson's Disease Rating Scale) and walking ability (10 m walking speed test, 6 minutes walking test, timed up-and-go test) were measured at baseline and after 4-weeks. Results: Significant differences in disease severity and walking ability were observed between the pre- and post-exercise groups (p<0.05). The improvement of disease severity and walking endurance was significantly higher in the experimental group than in the control group (p<0.05). Conclusion: These findings demonstrate that aerobic exercise is effective at improving disease severity and walking endurance in patients with Parkinson's disease.