자기공명영상(MRI)을 통한 요통환자의 다열근 위축에 대한 정량적 분석

양대중 ( Dae Jung Yang ) 대한물리의학회 2010 대한물리의학회지 Vol.5 No.4

Purpose:The purpose of this study was to compare chronic LBP patients and asymptomatic subjects on measures of multifidus size (cross-sectional area;CSA, thickness) and symmetry (proportional difference of relatively larger side to smaller side). Methods:Data were obtained from 12 asymptomatic subjects without a prior history of LBP (8 females, 4 males), and a retrospective audit was undertaken of records from 12 chronic low back pain patients (8 females, 4 males). CSA and Thickness of the lumbar multifidus muscles was measured from axial T1-weighted magnetic resonance images (MRI). Results:The results of the analysis showed that chronic LBP patients had significantly smaller multifidus CSA and thickness than asymptomatic subjects at L4-5 vertebral levels(p<.05). The asymmetry between sides was seen at L4- L5 vertebral level in patients with chronic low back pain presentations (p<.05). Conclusions:MRI provided a quantitative measure of change between asymptomatic subjects and chronic low back pain patients of multifidus muscle. MRI identified significant differences in cross-sectional area and thickness and helps to evaluate clinically and plan the treatment modalities of LBP.

자세이완기법과 테라테인먼트적 초음파가 정상성인의 허리골반 미치는 영향

양대중(Dae-Jung Yang),강다행(Da-Haeng Kang) 한국엔터테인먼트산업학회 2016 한국엔터테인먼트산업학회논문지 Vol.10 No.1

본 연구는 자세이완 기법과 테라테인먼트적 초음파가 정상성인의 허리골반대의 유연성과 근긴장도에 미치는 영향을 알아보고 유연성과 근긴장도의 상관관계를 비교하고자 하였다. 대상자는 정상성인 30명으로 대조군(CON), 자세이완 치료군(PRT), 초음파군(TUS)으로 각 10명씩 무작위 분류하여 진행되었다. 모든 대상자는 사전평가로 MFTF (Modified Fingertip-To- Floor), SLR(straight leg raising), 안성시 근긴장도 평가가 실시되었으며, 자세이완치료와 초음파는 대상자의 양쪽 허리네모근에 각 5분씩 중재되었고 대조군은 10분간 휴식을 취하였다. 모든 대상자는 1일 15분, 주 3회, 3주간 각 중재방법이 적용되었으며, 이후 사후 검사를 동일하게 실시하였다. 중재그룹은 대조군과 비교하여 MFTF에서 유의한 증가를 나타내었다. 또한 오른쪽은 허리네모근의 안정 시 긴장도에서도 유의한 감소를 나타내었다. 왼쪽 허리네모근의 긴장도는 자세이완군이 대조군과 비교해 유의한 감소를 나타내었다. 자세이완치료와 초음파는 허리골반부의 유연성 증가와 근긴장도 완화에 적합한 중재법이며, 허리골반부의 유연성과 안정시 허리네모근의 긴장도는 반비례관계인 것으로 확인되었다. Purpose: This study conducted the following experiment to examine change of flexibility and muscle tension of lumbopelvis with healthy adults according to positional release technique and thertainmental ultrasound. The research subject included 30 healthy adults who were randomly divided into three groups with positional release technique group, thertainmental ultrasound group and control group. Flexibility of lumbopelvis was measured by modified fingertip-to-floor(MFTF) and straight leg raising(SLR) and muscle tension of lumbopelvis by myotonometer application for quadratus lumborum muscle on comparative analysis of pre, post intervention. These result lead us to the conclusion that each group were statistically improved at MFTF, SLR and tension of quadratus lumborum muscle. Consequently, positional release technique and thertainmental ultrasound would be lead to positive increment of flexibility and muscle tension of lumbopelvis. Consequently, positional release technique and thertainmental ultrasound would be lead to positive increment of flexibility and muscle tension of lumbopelvis.

노르딕워킹의 속도에 따른 하지 관절의 운동역학적인 분석

양대중 ( Dae Jung Yang ),이용선 ( Yong Seon Lee ),박승규 ( Seung Kyu Park ),강정일 ( Jeong Il Kang ),이준희 ( Joon Hee Lee ),강양훈 ( Yang Hoon Kang ) 한국운동역학회 2011 한국운동역학회지 Vol.21 No.3

In this study, 26 normal subjects were studied to compare the biomechanical Analysis of Lower Limbs on Speed of Nordic Walking. The biomechanical variables were determined by performing three-dimensional gait analysis, and the measurements items were spatial and temporal parameters; vertical ground reaction force; and moments of the hip, knee, and ankle joints. The purpose of this study based on the speed of Nordic Walking to the vertical ground reaction force and joint moments of each were analyzed. Nordic Walking with poles while being whether this weight is reduced to load, not the improvement of muscle activity by identify Nordic walking is to allow efficient. The results of the analysis were follows. The spatial parameters of step length, stride length significantly increased with increase in velocity(p<0.001). The temporal parameters of step time, stride time, the duration of double support use, and the duration of single support use also significantly decreased with increase in velocity(p<0.001), but cadence significantly increased(p<0.01). Analysis of the changes in ground reaction force revealed that vertical ground reaction force significantly increased at the initial contact and the terminal stance and decreased at the mid stance with increase in velocity(p<0.001). Moments of the hip and knee joints significantly in creased with increase in velocity whereas that of the ankle joint did not. Gait analysis revealed that weight-bearing decreased and moments of the hip and knee joints increased with increase in velocity(p<0.01). The results of this study may help people perform Nordic walking efficiently and Nordic walking can be used in the gait training of people with an abnormal gait.

골프선수의 3차원적 척추구조, 골반변위 및 족압에 관한 연구

양대중 ( Dae Jung Yang ) 한국운동역학회 2012 한국운동역학회지 Vol.22 No.2

The purpose of this study was to investigate variables of significantly difference as the structure of the spine, pelvic deviation and foot pressure between undergraduates and golf player subjects. The subjects of study were composed of 20 male golf players and 20 male undergraduates. Both groups were right handed persons. The measurement tools of this study were Formetric 4D (Diers, Germany) which is a three dimensional measure. The result are the follows: there were a significant difference between golf players and general students of trunk imbalance, pelvic tilt, pelvic torsion, pelvic rotation, surface rotation, lumbar lordotic curve, foot pressure(fore & behind foot), weight distribution(right & left foot). In conclusion, golf players might cause transform of spine and foot pressure due to golf exercise for several years. Such as imbalance affect to induce functional impairment and pain of musculoskeletal system, and appropriate evaluation and treatment were necessary for golf players.

신경근 훈련이 기능적 발목 불안정성 축구선수의 자세조절과 점프 수행력에 미치는 영향

양대중 ( Dae Jung Yang ),강정일 ( Jeong Il Kang ),박승규 ( Seung Kyu Park ),이민기 ( Min Ki Lee ),정용식 ( Yong Sik Jeong ) 한국운동역학회 2014 한국운동역학회지 Vol.24 No.3

The purpose of this study was to investigate the effects on jump performance and balance in soccer player with functional ankle instability of difference of neuromuscular training. In 33 male college soccer player with functional ankle instability subjects of this study randomization, combined training group (group I, n=11) , balance training group (group II, n=11) and control group (group III, n=11) that included in the plyometric training and balance training was classified group. The intervention was conducted three times a week for 8 weeks. Before and after intervention, measured in surface area ellipse and countermovement jump and countermovement jump with arm swing. Showed a significant improvement in postural control and jump performance from the combined training group and balance training group compared to the control group. Showed a significant improvement in countermovement jump from the combined training group compared to the balance training group. Combined training and balance training showed the increased jump performance and postural control in soccer player with functional ankle instability.

tDCS를 결합한 고강도 인터벌 훈련이 축구선수의 유산소 운동능력에 미치는 영향

양대중 ( Dae-jung Yang ),엄요한 ( Yo-han Uhm ) 대한통합의학회 2021 대한통합의학회지 Vol.9 No.4

Purpose : This study examined the effect of transcranial direct current stimulation (tDCS) combined high intensity interval training (HIIT) on the aerobic exercise capacity of college soccer players. Methods : The subjects of this study were 30 college soccer players. They were divided into a high intensity interval training group combining transcranial direct current stimulation (Group I) and a high intensity interval training group (Group II). Each group had 15 subjects randomly assigned. After receiving general soccer training, each group additionally received high intensity interval training combined with transcranial direct current stimulation and high intensity interval training for 30 minutes 5 times a week for 8 weeks. Their VO2max and 20 meter shuttle run test, Yo-Yo intermittent recovery test were analyzed before the intervention. After 8 weeks of intervention, the above items were re-measured and an intergroup analysis was performed. Results : As a result of comparative analysis of VO2max intake between groups, 20 meter shuttle run test and Yo-Yo intermittent recovery test, a statistically significant difference was found. The high intensity interval training group (Group I) combined with transcranial direct current stimulation showed a significant difference in aerobic exercise capacity compared to the high intensity interval training group (Group II). Conclusion : These results showed that high intensity interval training group combined with transcranial direct current stimulation was more effective for aerobic exercise. Based on this study, this study proposes an effective program for patients as well as elite athletes. In the future, it is necessary to develop an effective transcranial direct current stimulation program and to study how to apply it for various patients.

수중재활운동 프로그램이 경계선 지능 아동의 운동능력에 미치는 영향

양대중(Yang, Dae-Jung),박희석(Park, Hee-Seork) 한국체육과학회 2017 한국체육과학회지 Vol.26 No.2

The purpose of this study is to inquire into the effect of aquatic rehabilitation exercise program by measuring and analyzing improvement of exercise coordination and ability of performing exercise tasks of children with borderline intelligence disorder. Sixteen children aged 10 to 13 with borderline intelligence disorder attending elementary school located in G city (experimental group consisting of eight students, control group consisting of eight students). The program consisted of 36 sessions. Each session lasted 80 minutes. The program was conducted for 12 weeks. The program was carried out three times per week. Social maturity scale was conducted for selecting participants before carrying out pretest. Social·emotional behavior development scale and exercise ability scale out of 6 areas of KISE behavioral development scale developed by National Institute of Special Education were used. Mean and standard deviation were obtained by using SPSS Ver 18.0. Paired t-test was conducted to find out a difference between experimental group and control group in exercise ability. Two-way repeated measures ANOVA was used to analyze a change according to period of treatment and a difference between groups. Statistical significant difference was verified with .05 of significance level. Findings of this study are as follows; first, aquatic rehabilitation exercise program has a positive effect on improvement of exercise coordination of children with borderline intelligence disorder. second, aquatic rehabilitation exercise program has a positive effect on improvement of ability of children with borderline intelligence disorder to conduct exercise tasks.

야외운동기구를 이용한 복합 운동프로그램이 여성노인의 건강관련 체력과 혈당 및 말초동맥에 미치는 영향

양대중(Yang, Dae-Jung),박희석(Park, Hee-Seork) 한국체육과학회 2018 한국체육과학회지 Vol.27 No.4

This study aims to examine the effect of complex exercise program using outdoor exercise equipment on health-related physical strength, blood glucose and peripheral arteries of elderly women. To this end, in this study, 12-week exercise program targeting 19 elderly women aged over 65 (9 in the exercise group, 10 in the control group), who resided in the Jeollanam-do Province and did not engage in physical activities regularly, was carried out. As a result, the following conclusion was obtained. First, upon measuring the health-related physical strength of the elderly women, the cardiovascular endurance, muscular strength of the lower body and muscular endurance of elderly women in the exercise group were improved significantly after exercise, showing a significant difference between the exercise and control groups. The exercise group showed improvements in the flexibility and balance, but showing no significant difference. As for quickness, there was no significant difference between before and after exercise, as well as between the exercise and control groups. Second, as a result of measuring changes in the blood glucose of the elderly women, the exercise group showed a significant decrease in the blood glucose; and a significant difference in the blood glucose was also shown between before and after exercise and between the exercise and control groups. Third, in measuring changes in the peripheral arteries of the elderly women, no significant difference was found between before and after exercise as well as between the exercise and control groups. As stated above, it was confirmed that the 12-week complex exercise program using outdoor exercise equipment had a positive effect on the improvement of health-related physical strength and on lowering blood glucose. Further study needs to be conducted on a larger number of subjects and present a more variety of exercise programs to improve the health of the elderly.

뇌졸중 환자에서 자세정렬변화가 족저압 및 균형에 미치는 영향

양대중,박승규,강정일,박성빈,Yang, Dae-Jung,Park, Seung-Kyu,Kang, Jeong-Il,Park, Seong-Bin 대한물리치료학회 2014 대한물리치료학회지 Vol.26 No.4

Purpose: This study was conducted in order to investigate the exercise limit that may occur depending on changes in postural alignment by examining the significance of postural alignment changes, foot pressure, and balance of patients with stroke. Methods: In this study, 50 patients diagnosed with a stroke were selected as subjects. Imbalance of postural alignment of the trunk, pelvic tilt of trunk rotation of the body, angle of kyphotic curving of the thoracic, and angle of lordotic curving of the lumbar vertebra were measured. Foot pressure was examined by measuring average pressure and weight bearing. Balance was examined by measuring the center of pressure and limit of stability. Results: The significance of postural alignment, foot pressure, and weight bearing of the non-paretic side was examined. In addition, the significance between postural alignment and balance was examined. Conclusion: It is thought that limits of foot pressure and balance in the standing position can be caused by postural alignment. Thus, both a therapeutic intervention program and postural alignment training should be provided together in order to improve the function of patients with stroke.

컴퓨터화된 자세조절훈련이 뇌졸중 환자의 균형 및 근활성도에 미치는 영향

양대중,박승규,강전일,이준희,엄요한,Yang, Dae-Jung,Park, Seung-Kyu,Kang, Jun-Il,Lee, Jun-Hee,Uhm, Yo-Han 대한물리치료학회 2012 대한물리치료학회지 Vol.24 No.5

Purpose: This study examined the effects of computerized feedback postural training on the balance and electromyography activity of subjects with stroke. Methods: A total of 30 chronic stroke patients were enrolled in this study. Subjects were divided into an experimental group (n=15) and a control group (n=15). Computerized feedback postural training was used in the experimental group. Both groups received intervention for six weeks, 5 times per 30 minutes period. Data analysis was performed using analysis of covariance for determination of statistical significance. Results: Significant difference in static and dynamic balance was observed in the experimental group, compared with the control group (p=0.05), and a significant difference in muscle activity was observed in the gastrocnemius muscle, quadriceps muscle, and elector spinae muscle. However, the hamstring muscle showed no significant difference. Conclusion: Computerized feedback postural training is more effective in improving the ability of balance and muscle activity than neurological physical therapy.