등척성 운동과 신경근 전기자극이 손목 신전근의 근 피로도에 미치는 영향

조성현(Cho, Sung-Hyoun),이중호(Lee, Jung-Ho) 한국체육과학회 2012 한국체육과학회지 Vol.21 No.3

The purpose of this study was to compare the effect of isometric exercise and NMES(neuromuscular electrical stimulation) on muscle fatigue by wrist extensor. For this study, subjects were forty members who twenty for isometric exercise group, 20 for neuromuscular electrical stimulation group, and they were calculated from a 10 minute exercise and stimulation by wrist extensor. The wrist extensor fatigue of the subjects were measured by strength dynamometer. The data of changes with in the group and the differences between before and after and after the exercises for each group was analysed with multifarious analysis of variance test. The statistical significance level was p<.05. As a results, there was a incorrelation between isometric and neuromuscular electrical stimulation. Isometric exercise group and neuromuscular electrical stimulation group were found to have an increase in muscle fatigability significantly as time passes(p<.05). Between isometric exercise group and neuromuscular electrical stimulation group were found to have an difference in muscle fatigability significantly in ten minutes and twenty minutes. But both groups were no found to have an difference in muscle fatigability significantly in thirty minutes. In summary, data from our study suggest that unsuitable duty cycle and exercise time of isometric exercise and neuromuscular electrical stimulation induced increasing of muscle fatigability.

The Influences of the Intensive Ankle Joint Strategy Training on the Muscular Strength and Balancing Ability in the Elderly Women

조성현(Cho, Sung-Hyoun),김철용(Kim, Cheol-Yong) 한국산학기술학회 2012 한국산학기술학회논문지 Vol.13 No.12

본 연구는 노인여성들을 대상으로 발목관절 전략 집중 훈련이 근력과 균형능력에 어떠한 영향을 미치는지 를 알아보고자 하였다. 연구대상자는 65-80세 사이의 여성노인 30명으로 선정하였다. 대조군(n=10)은 아무런 처치를 하지 않았고, 실험군 I(n=10)은 일반적 하지의 운동만 실시하였다. 실험군 Ⅱ(n=10)는 세라밴드를 이용한 근력운동과 air cushion, unstable board을 이용한 평형운동을 포함한 발목관절 전략 집중 훈련을 실시하였다. 두 실험군은 6주간 주 3회 1시간 훈련을 실시하였다. 6주간 일반적 하지 운동과 발목관절 전략 집중 훈련을 각각 실시한 후 dynamometer, FRT, SEBT를 측정한 결과 대조군과 실험군 I의 변화는 통계학적으로 유의하지 않았지만, 실험군 Ⅱ의 변화는 유의하게 증가하였다(p<.05). 더불어 노인 낙상 예방 및 치료적 접근에 있어서 발목관절 전략 집중 훈련을 통 한 다양한 변인의 추가적인 연구가 필요하다고 생각된다. The purpose of this study was to compare the effects of the intensive ankle joint strategy training on the muscular strength and balancing ability in the elderly women. The subject of this study were 30 elderly women aged from 65 to 80 and randomly assigned to three groups. For 6 weeks, two experimental groups took the training an hour every 3 days of a week. The results that measured the dynamometer, FRT, and SEBT after implementing general lower limbs exercise and the intensive ankle joint strategy training for 6 weeks showed that the changes in the control and experimental group I were not statistically significant while the changes in the experimental group II were statistically significant (p<.05). For the prevention of the elderlies from fall and the treatment approaches, it is deemed to be necessary additional studies on the diverse variables through the intensive training of the ankle strategy.

뇌졸중 환자의 가상현실 프로그램이 상지기능에 미치는 영향 : 메타분석

조성현(Sung-Hyoun Cho),최기복(Ki-Bok Choi) 한국산학기술학회 2020 한국산학기술학회논문지 Vol.21 No.8

본 연구의 목적은 메타분석을 통해 가상현실 프로그램이 뇌졸중 환자의 상지기능에 미치는 효과크기를 알아보고자 한다. 데이터베이스는 한국교육학술정보원(RISS), 한국학술정보(KISS), 국립중앙도서관, 한국학술지인용색인(KCI), 국가과학기술정보센터(NDSL)를 활용하였다. 2010년 1월부터 2019년 6월까지 가상현실 프로그램을 실시한 선행연구들을 조사하였다. 본 연구는 PICO(Patient, Intervention, Comparison, Outcome, PICO)기준에 의거하여 최종 14편을 선정하여 메타분석을 실시하였다. 질 평가도구로 RCT(Randomized Control Trials) 연구는 RoB(Risk of Bias) 도구, NRCT(Non-Randomized Control Trials) 연구는 RoBANS(Risk of Bias Assessment tool for Non-randomised Study) 도구를 사용하였다. 선정된 각 연구들의 효과크기를 산출하기 위해 CMA 3.0프로그램을 사용하였다. 추가적으로 하위집단분석과 메타회귀분석 및 출판편의 분석을 실시하였다. 가상현실 프로그램이 상지기능에 대한 전체 효과크기는 Hedges’s=0.390 (95 % CI: 0.192~0.587)으로 확인되었다(p<.05). 가상현실 프로그램은 뇌졸중 환자의 상지기능에 긍정적인 영향을 미친다. 따라서, 4차 산업에 발맞추어 뇌졸중 환자를 위한 다양한 가상현실 프로그램과 산학 협력 기술 개발이 요구된다. 향후 가상현실 프로그램에 대한 RCT연구들과 세부적인 상지기능에 대한 연구가 질적 및 양적으로 확보되어야 할 것이다. This study examined the effect size of virtual reality programs on the upper extremity function of stroke patients through a meta-analysis. Databases, such as the Research Information Sharing Service, the Korean Studies Information Service System, the National Library of Korea, the Korean Citation Index, and the National Digital Science Library, were used. Previous articles were surveyed for virtual reality programs between January 2010 and June 2019. A meta-analysis was performed by selecting the final 14 studies based on the PICO standard. The RoB and RoBANS tools were used as quality assessment tools for randomized and non-randomized control trials, respectively. The CMA 3.0 program was used to calculate the effect size of each study. Sub-group analysis, meta-regression analysis, and publication bias were performed. The total effect size of the virtual reality programs on the upper extremity function was Hedges"s g=0.390 (95% CI: 0.192~0.587) (p<.05). The virtual reality program positively affects the upper extremity function of stroke patients. Therefore, the development of various virtual reality programs and industry-academia cooperation technology for stroke patients is required in accordance with the fourth industry. Randomized control trials and detailed upper extremity function studies for virtual reality programs will be needed in follow-up studies.

속도변화에 따른 후방보행 훈련이 하지 근육에 미치는 영향

조성현(Cho, Sung-Hyoun),김신균(Kim, Shin-Gyun) 한국산학기술학회 2012 한국산학기술학회논문지 Vol.13 No.5

본 논문은 속도변화에 따른 후방보행 훈련이 하지의 넙다리 근육에 미치는 영향을 알아보기 위한 것으로 30 명의 대상자를 무작위로 세 집단; 실험군Ⅰ(전방보행 5km/h: 10명), 실험군Ⅱ(후방보행 5km/h: 10명), 실험군Ⅲ(후방보 행 2.5km/h: 10명)으로 나누어 실험하였다. 실험은 4주간 주 4회 30분씩 실시하였으며 실험 전과 실험 4주 후에 각 실험군의 넙다리곧은근의 활성도와 넙다리네갈래근의 근력을 측정하였다. 연구의 결과 넙다리곧은근의 활성도는 전방 보행 군보다 후방보행 군에서 더 의미 있는 변화를 보였으며 실험군Ⅲ보다 실험군Ⅱ에서 더 의미 있는 변화를 나타 냈다. 넙다리네갈래근의 근력 또한 전방보행 군보다 후방보행 군에서 더 의미 있는 변화를 보였으며 실험군Ⅲ보다 실 험군Ⅱ에서 더 의미 있는 변화를 나타냈다. 이상의 결과에 따라 후방보행이 전방보행에 비해 넙다리 근육의 근 활성 도와 근력에 보다 효과적이라고 할 수 있으며 초기 재활에서 느린 속도의 후방보행이 효과적으로 활용될 수 있음을 알 수 있다. The purpose of this study was to find out the effects of depending on variations of speed in backward walking on lower extremities muscle. For this study, 30 members were randomly divided into three groups; groupⅠ(n=10, forward walking: 5km/h), groupⅡ(n=10, backward walking: 5km/h), groupⅢ(n=10, backward walking: 2.5km/h). This exercise was performed to 30 minutes 4 times a week for 4 weeks. This study was measured before the exercise and after 4 weeks. The result of this study are as follows. The muscle activity of rectus femoris was higher in backward walking group(p<.01) than in forward walking group and it was the highest at groupⅡ(p<.001). The quadriceps muscle strength of thigh was higher in backward walking group(p<.01) than in forward walking group and it was the highest at groupⅡ(p<.001). From these results, backward walking training was effective on muscle activity, strength of thigh muscle. Although fast speed backward walking was most effective, low speed backward walking that compare with forward walking was effective.

The Effect of Mechanical Horseback Riding Training on the Gait Ability of Patients with Stroke

조성현(Cho, Sung Hyoun),조운수(Cho, Woon Su),김용성(Kim, Yong Seong) 한국장애인재활협회 2014 재활복지 Vol.18 No.3

본 연구의 목적은 승마기구훈련이 뇌졸중 환자의 기능적 보행능력에 미치는 영향을 알아보기 위해서 시행되었다. 연구대상자는 G광역시에 위치한 A병원에 입원 중인 뇌졸중환자 30명을 대상으로 하였다. 대상자들은 승마기구훈련군 15명, 대조군 15명으로 무작위 배치되었다. 승마기구훈련군은 6주 동안 주 3회, 회당 20분 훈련을 받았으며, 전체 대상자는 병원에서 물리치료를 각각 30분씩 받았다. 보행능력의 평가를 위하여 각각 10미터 걷기 검사(10m walking test, 10MWT), 8자걷기 검사(figure of 8 walk test, F8WT), 기능적 보행 평가(functional gait assessment, FGA)를 사용하여 훈련 전, 훈련 6주 후 보행의 변화를 측정하였다. 연구에서 수집된 모든 자료는 SPSS 18.0버전을 사용하여 분석하였다. 본 연구의 결과, 10MWT, F8WT, FGA 모든 항목에서 승마기구 훈련군과 대조군의 집단 내 기간에 따른 전ㆍ후 차이 값이 유의하였다(p <.05). 또한 집단 간 전ㆍ후 변화량 차이가 유의하였다(p <.05). 본 연구의 결과, 승마기구훈련은 뇌졸중 환자에 있어서 보행의 기능적 측면을 향상시켰다. 그러므로 승마기구훈련은 기능적 보행능력의 향상에 도움을 줄 수 있는 유용한 임상적 중재 도구가 될 수 있을 것으로 생각된다. The purpose of this study was to investigate effects of mechanical horseback riding training on functional gait in patients with stroke. The subjects were 30 stroke patients who were admitted in A hospital in G city and were randomly divided into the training group(n=15) and the control group(n=15). The training group was trained 3 times a week for 6 weeks, and all subjects received physical therapy each for 30 minutes in the hospital. To evaluate the functional capacity of the walk 10m walking test(10MWT), figure of 8 walk test(F8WT), using the functional gait assessment(FGA) before training, training gait changes after 6 weeks was measured. All the data collected in study were analyzed using SPSS version 18.0. According to the results, the 10MWT, F8WT(number of steps), F8WT(performance time), and FGA showed significant differences in the amount of change before and after training and changes over time between the two groups. In conclusion, the mechanical horseback riding training improves the functional aspect of gait. Therefore it is suggested that the mechanical horseback riding training may serve as a useful tool of clinical intervention of gait ability of stroke patients.

12주간 복합운동프로그램이 혈관성 치매노인의 일상생활 수행능력과 삶의 질 지수에 미치는 효과

조성현 ( Sung Hyoun Cho ),김승준 ( Seung Joon Kim ) 대한물리의학회 2010 대한물리의학회지 Vol.5 No.4

Purpose:This study was to investigate vascular dementia elders`s activities of daily living, quality of life index and to determine how much vascular dementia elders is influenced by the 12 weeks combined exercise program with aerobic training and resistance exercise. Methods:Thirty patients with vascular dementia over 65 in B geriatrics hospital were recruited this study. Activities of daily living were measured by I-ADL (instrumental-activities of daily living) and B-ADL(basic- Activities of daily living) and quality of life index was measured by GQOL-D(geriatric quality of life scaledementia). Statistical analysis was used repeated one-way ANOVA to test mean difference by using SPSS 12.0 for windows. Results:After comparing the activities of daily living of experimental group that of control group according to the period of exercise, there were statistically significant differences in I-ADL, B-ADL score test and GQOL-D index test of both experimental and control groups. There was also a significant difference in comparing the results of 12 weeks exercise of the groups. Conclusion:12 weeks combined exercise program had a good influence on vascular dementia elders`s activities of daily living and quality of life index.

운동재활훈련이 알츠하이머 노인의 우울정서와 정신행동증상에 미치는 효과

조성현 ( Sung Hyoun Cho ),김철용 ( Cheol Yong Kim ) 대한물리의학회 2012 대한물리의학회지 Vol.7 No.1

Purpose:The purpose of this study is to examine the effects of training in exercise rehabilitation on depressive emotion, behavioral and psychological symptoms(BPSD) caused by Alzheimer`s disease elders. Methods:The subjects of this study were 34 patients with Alzheimer`s disease over 65 and assigned randomly into one of two groups, each with 17 people. The experimental group was treated by training in exercise rehabilitation executed 60 minutes, 3 times a week for 8 weeks. The results of the experiment were analyzed using samples t-test along with averages and standard deviations as the statistical methods for data analyses. Results:The results of this study were as follows. First, the experimental group showed statistically significant improvements in the areas of depressive emotion (SGDS) compared to control group. Second, the experimental group showed statistically significant improvements in the severity of behavioral and psychological symptoms and subjective degrees of pain of care givers (NPI-Q) compared to control group. Conclusion:Based on the results of this study, training in exercise rehabilitation have an effect on depressive mood and BPSD in elderly with Alzheimer`s disease.

ATM 망에서 ABR 서비스상의 TCP 혼잡제어 알고리즘의 성능 분석

조성현(Sung-Hyoun Cho),진성호(Sung-Ho Jin),임재홍(Jae-Hong Yim) 한국통신학회 2001 한국통신학회 학술대회 및 강연회 Vol.2001 No.4

Effects of Mechanical Horseback Riding Exercise on Static Balance of Patient with Chronic Stroke

Woon-Soo Cho(조운수),Sung-Hyoun Cho(조성현) 한국산학기술학회 2015 한국산학기술학회논문지 Vol.16 No.3

본 연구의 목적은 승마기구 운동이 만성 뇌졸중 환자의 정적균형 능력에 어떠한 영향을 미치는지 알아보는 것이다. 연구대상자는 뇌졸중 진단을 받은 환자 30명으로서 승마기구 운동군과 대조군으로 무작위 분류하였다. 대조군은 운동치료를 하루에 1회씩 받았으며, 실험군은 하루 1회의 운동치료 외에 별도의 시간에 승마기구 운동을 받았다. 승마기구 운동은 6주 동안 주 3회, 회당 20분씩 실시하였다. 집단 간 비교를 위해 independent t-test를 실시하였고, 집단 내 기간별 비교를 위해 paired t-test를 실시하여 분석하였다. 본 연구의 결과, 운동 후 승마기구 운동군의 눈 감고 선 자세에서는 균형에 유의한 차이가 있었으나, 승마기구 운동군과 대조군의 그룹간 비교에서는 유의한 차이가 나타나지 않았다. 앞으로 승마기구 운동이 뇌졸중 환자의 기능에 어떠한 영향을 미치는지 알아보는 다양한 임상적 연구가 필요할 것으로 생각된다 The purpose of this study is to evaluate the effect of horse-riding simulator exercise on the static balance of chronic stroke patients. The study’s sample included 30 stroke patients who were randomly classified into an experiment group and a control group. Both the experiment and control groups received therapeutic exercise one time per day, but the experiment group also received twenty minutes of horse-riding simulator exercise three times per week for six weeks. To compare the groups, an independent t-test was performed, and to compare each period, a paired t-test was conducted and its result was analyzed. The result of this study, moving distance under standing position with eyes closed, showed significant difference in horse-riding simulator exercise group after exercise. But, there was no significant difference between horse-riding simulator exercise group and control group. Further, various clinical studies focusing on effects of horseback riding exercise on function of stroke patients are needed.

전기자극 수준이 정상 성인의 자율신경계에 미치는 영향

진희경(Jin, Hee-Kyung),조성현(Cho, Sung-Hyoun) 한국산학기술학회 2015 한국산학기술학회논문지 Vol.16 No.3

본 연구의 목적은 척수분절레벨에 적용한 간섭전류의 자극수준에 따른 정상성인의 자율신경계에 미치는 영향을 알아 보고자 하였다. 간섭전류는 T1-T4 분절에 접착식 패드전극을 2극 배치 후 20분간 전기자극하여, 전기자극 전과 후, 30분 후의 변화를 확인하였다. 연구대상은 광주시에 소재한 N대학교에 다니는 건강한 성인남녀 45명을 대상으로 감각자극수준은 100 bps, 10∼12 ㎃, 운동자극수준은 5 bps, 45∼50 ㎃, 유해자극수준은 100 bps, 80∼90 ㎃으로 각각 15명씩 무작위 배치하여 연구를 수행하였으며 연구 결과는 다음과 같다. 각 집단의 교감신경활성도의 변화는 시간과 집단 간의 상호작용에 유의한 차이가 없었으나, 시간에 따라 유의한 변화를 보여주었다(p<.05). 사후 분석결과 전기자극 직후와 전기자극 후 30분에서 유의 한 차이를 보여주었다(p<.05). 각 집단의 부교감신경활성도의 변화는 시간과 집단 간의 상호작용에 유의한 차이가 없었으나, 시간에 따라 유의한 변화를 보여주었다(p<.05). 사후 분석결과 전기자극 직후와 전기자극 후 30분에서 유의한 차이를 보여주 었다(p<.05). 이상의 결과로 전기자극 수준은 특정목적과 상황에 따라 다양하게 적용되어야 할 것으로 생각된다. The purpose of this study was to investigate the effect the interferential current (IFC) stimulation level according to autonomic nerve system (ANS) of healthy adults. IFC measured with adhesive 2-pole electrodes pad on T1∼T4 spinal cord segment level that electrode stimulation of 20 min after. A total of 45 healthy adults participated in the study, who were randomly divided into three groups: 15 of sensory level stimulus group (100 bps, 10∼12 ㎃), 15 of exercise level stimulus group (5 bps, 45∼50 ㎃), 15 of noxious level stimulus group (100 bps, 80∼90 ㎃). Measured items were sympathetic activity and parasympathetic activity. In order to identify the changes in measurement variables before electrode stimulation and after and 30 min stimulation. The comparison of sympathetic and parasympathetic activity in each group revealed that they was changes of after vs 30 min in after electrical stimulation time(p<.05).