• 제목/요약/키워드: Two-stroke

검색결과 1,373건 처리시간 0.024초

뇌졸중 이후 수면관련 행동장애를 보이는 환자에 대한 억간산가미 치험 2례 (Two cases of Ukgansan-gami on Sleep-related Behavior Disorder after Stroke)

  • 김수현;이유진;양정윤;조기호;문상관;정우상;권승원;진철
    • 대한중풍순환신경학회지
    • /
    • 제20권1호
    • /
    • pp.9-16
    • /
    • 2019
  • ■ Objectives This case study is to report the two cases of Ukgansan-gami on sleep-related behavior disorder after stroke. ■ Methods Two patients who had sleep-related behavior disorder after stroke were treated by Ukgansan-gami about a month. We evaluated these patients with the frequency and severity of symptoms. ■ Results During treatment period, decreases in both frequency and severity of symptoms were observed in two cases. ■ Conclusion Two patients who were suffered from sleep-related behavior disorder due to sequelae of stroke showed significant improvement of their symptom after taking Ukgansan-gami.

  • PDF

주파수 영역에서 비틀림진동에 의한 저속 2행정 디젤엔진을 갖는 추진축계의 피로강도 해석 (Fatigue Strength Analysis of Propulsion Shafting System with Two Stroke Low Speed Diesel Engine by Torsional Vibration in Frequency Domain)

  • 김상환;이돈출
    • 한국소음진동공학회:학술대회논문집
    • /
    • 한국소음진동공학회 2007년도 춘계학술대회논문집
    • /
    • pp.416-422
    • /
    • 2007
  • Prime movers in most large merchant ships adapt two stroke low speed diesel engine which has higher efficiency, mobility and durability. However, severe torsional vibration in these diesel engines may be induced by higher fluctuation of combustion pressures. Consequently, it may lead sometimes to propulsion shafting failure due to the accumulated fatigue stresses. Shaft fatigue strength analysis had been done traditionally in time domain but this method is complicated and difficult in analysing bi-modal vibration system such as the case of cylinder misfiring condition. In this paper authors introduce an assessment method of fatigue strength estimation for propulsion shafting system with two stroke low speed diesel engine in the frequency domain.

  • PDF

2중 Wiebe 연소모델을 이용한 2행정 대형 선박용 디젤엔진의 성능예측 (The prediction of Performance in Two-Stroke Large Marine Diesel Engine Using Double-Wiebc Combustion Model)

  • 김태훈
    • Journal of Advanced Marine Engineering and Technology
    • /
    • 제23권5호
    • /
    • pp.637-653
    • /
    • 1999
  • In this study well-known burned rate expressions of Weibe function and double Wiebe function have been adopted for the combustion analysis of large two stroke marine diesel engine. A cycle simulation program was also developed to predict the performance and pressure waves in pipes using validated burned rate function,. Levenberg-Marquardt iteration method was applied to cali-brate the shape coefficients included in double Wiebe function for the performance prediction of two-stroke marine diesel engine. As a result the performance prediction using double Wiebe func-tion is well correlated withexperimental dta with the accuracy of 5% and pressure waves in intake and transport pipe are well predicted. From the results of this study it can be confirmed that the shape coefficients of burned rate function should be modified using the numerical method suggested for the accurated prediction and double Wiebe function is more suitable than Wiebe func-tion for combustion analysis of large two stroke marine engine.

  • PDF

뇌경색 환자의 운동장애에 대한 주파수별 전침치료효과의 비교 (A Comparative Study of Motor Recovery from Stroke between High and Low Frequency Electrical Acupoint Stimulation)

  • 김영석;정우상;나병조;박성욱;문상관;박정미;고창남;조기호;배형섭;홍진우
    • 대한한의학회지
    • /
    • 제28권3호통권71호
    • /
    • pp.289-298
    • /
    • 2007
  • Objectives : Electrical acupoint stimulation (EAS) has been used to treat motor dysfunction of stroke patients with reportedly effective results. The purpose of this study was to evaluate the efficacy of EAS with different frequencies in treating motor dysfunction of ischemic stroke patients. Methods : The subjects of this study were sixty-two ischemic stroke patients with motor dysfunction at Kyunghee Oriental Medicine Hospital who were hospitalized for one week to one month from onset. They were treated with 2Hz or 120Hz EAS for two weeks, and motor evoked potentials (MEP) were measured before and after EAS treatment. To compare the effect of 2Hz EAS with 120Hz, we measured latency, central motor conduction time (CMCT) and amplitude of MEP before and after EAS treatment. Results : After two weeks of treatment, we compared MEP data of the affected side between the 2Hz group and the 120Hz group. The 2Hz group showed more significant improvement than the 120Hz group in latency, CMCT and amplitude (P=0.008, 0.002, 0.002). In case of the affected side MEP data divided by normal side MEP data, the 2Hz group also showed improvement on latency, CMCT and amplitude with significant differences (P=0.003, 0.000, 0.008). Conclusions : These results suggest that low frequency EAS activates the central motor conduction system better than high frequency EAS, and it means that EAS with low frequency is more helpful for motor recovery after ischemic stroke than that with high frequency.

  • PDF

가미귀비탕을 포함한 한방치료로 회상기억이 향상된 뇌졸중 후 인지저하 환자 2례 (Two Cases of Gami-Guibitang on Cognitive Impairment after Stroke with Improved Recall Memory including Korean Medicine)

  • 김정화;이형민;신희연;김하리;양승보;조승연;박성욱;고창남;박정미
    • 대한중풍순환신경학회지
    • /
    • 제19권1호
    • /
    • pp.21-30
    • /
    • 2018
  • ■ Objectives This case study is to report the two cases of Gami-Guibitang on cognitive impairment after stroke with improved recall memory. ■ Methods We used Korean medicine treatments including Gami-guibitang, acupuncture and moxibustion to treat patients who had cognitive impairment after stroke for at least two months. We observed the changes of symptoms by measuring Korean version of Mini-mental status examination (MMSE-K), Clinical Dementia Rating (CDR) and Global Detration Scale (GDS). ■ Results After treatment, the patient's symptoms were improved including MMSE-K, CDR and GDS. Improvement appeared to be prominent in recall memory. The general condition were also improved after treatment. ■ Conclusion This clinical case study suggests that Korean medicine including Gami-guibitang could be used to treat patients who had cognitive impairment after stroke especially suffering from degraded recall memory.

  • PDF

족욕프로그램이 뇌졸중 환자의 심박변이도, 혈압, 체온 및 피로에 미치는 효과 (Effects of a Footbath Program on Heart Rate Variability, Blood Pressure, Body Temperature and Fatigue in Stroke Patients)

  • 손유림;유명숙
    • Journal of Korean Biological Nursing Science
    • /
    • 제18권1호
    • /
    • pp.51-59
    • /
    • 2016
  • Purpose: This study was to examine the effects of a footbath program on heart rate variability, blood pressure, body temperature and fatigue of stroke patients with stroke-induced hemiparesis. Methods: A non-equivalent control group pretest-posttest design was used. Participants were 40 stroke patients, twenty for the footbath program and twenty for the control group, who were hospitalized in a long-term rehabilitation hospital in G city of Korea, from February to April 2014. The twenty participants in the experimental group received the intervention of footbaths and an educational program focused on the prevention of stroke complications; Collected data were analyzed by the IBM SPSS WIN 20.0 program using a t-test, ${\chi}^2$ test, Mann-Whitney U test and repeated measures ANOVA. Results: Significant differences were found in heart rate variability, systolic blood pressure, hand and foot temperatures and fatigue between the two groups. But no significant differences were found in diastolic blood pressure, core temperatures, forehead temperatures, and hand temperatures between the two groups. Conclusion: The footbath program was an effective intervention for skin temperature change and fatigue reduction for stroke patients. Therefore, it is recommended that the footbath program can be utilized as an effective nursing intervention for stroke patients in long-term rehabilitation care hospitals.

활혈거어법(活血祛瘀法)으로 호전된 중풍환자(中風患者)의 불면(不眠) 2례 (Two Cases of Insomnia in Stroke Patients, Treated with Enhanced Blood Circulation)

  • 정기현;김영석;강경숙
    • 대한한방내과학회지
    • /
    • 제23권2호
    • /
    • pp.313-320
    • /
    • 2002
  • Insomnia is defined as an experience of inadequate or poor-quality sleeping habit, coupled with more than one of the following symptoms : having difficulty sleeping, waking up too early in the morning or not having sound sleep. Insomnia is one of the most common complications that stroke patients experience, which interfere the patients' recovery. The authors observed two improved cases of insomnia in stroke patients by administrating traditional Korean medicine. The patients suffered from insomnia with nocturnal irritation, constipation, petechia of the tongue, thready or weak pulse. These symptoms, were diagnosed as blood stasis and we administered Hyulboochucke-tang three times a day, to improve blood circulation to remove blood stasis. After the administration, nocturnal irritation disappeared and the insomnia improved. Based on this experience, it is considered that enhancing blood circulation to remove blood stasis can be applied to the treatment of insomnia that stroke patients suffer.

  • PDF

뇌졸중 이후의 교합관계의 변화 증례 (CHANGES OF DENTAL OCCLUSION AFTER STROKE: CASE REPORT)

  • 이성종;이은영;김혜정;황지영;이제호
    • 대한장애인치과학회지
    • /
    • 제4권1호
    • /
    • pp.26-31
    • /
    • 2008
  • Cerebrovascular Accident(stroke) is that a sudden, nonconvulsive loss of neurologic function due to an ischemic or hemorrhagic intracranial vascular event. If stroke happens at the portion of trigeminal motor nucleus or its control part of cerebral cortex, masticatory muscles will be atrophy or paralyzed. So it is possible that dental occlusion changes after stroke. A 74-aged woman recurred mild stroke 2 month ago, who had experienced severe stroke 2 years ago. After recurrence, suddenly her upper full denture was dropped when lower denture contacted upper one. According to the her occlusion exam, her lower jaw moved back slightly compared with the occlusion of old denture. And her face had asymmetry and lower jaw dislocated to paralyzed side. A 50-aged man was treated because many cervical caries, which would occur because of an aftereffect of stroke, long-herm hospitalization and limits of self oral-care. 6 years ago he had cerebral hemorrhage and he claimed that he cannot bite exactly. Just two pairs of teeth was contact on biting, his lower jaw was located back, too. This two case suggests that dental occlusion can change after stroke.

  • PDF

정상노인과 뇌졸중 환자의 우세측과 비우세측의 골밀도 비교 (Compared to Bone Mineral Density between Dominant Side and Recessive Side in Normal Elderly and Stroke Patients)

  • 민동기
    • PNF and Movement
    • /
    • 제11권2호
    • /
    • pp.127-134
    • /
    • 2013
  • Purpose : The purpose of this study of normal elderly and stroke patients by comparing the dominant side and recessive side was to evaluate the differents between each Methods : Thirty-two elderly participated in this study. They were classified two groups: stroke patients group and the normal elderly group. Outcome measures were: general characteristics and BMD. General characteristics included age, height, weight and body mass index. BMD was represented in the osteoporosis index, T-score and Z-score. The measurements of bone mineral density were evaluated on the calcaneus region of the dominant and recessive side, using OsteoPro. The data analyzed using SPSS 17.0 software and the Paired-sample T-test and the Independent-sample T-test Results : OI, T-score, Z-score showed no significant differences between dominant side and recessive side in normal elderly group. But stroke patients group showed OI, T-score, Z-score significant differences between paretic side and nonparetic side. Change score subtracted recessive side from dominant side was significant differences between stroke patients group and normal elderly group. Conclusion : There is positive relationship between physical activity and BMD in stroke patients. Therefore, improved physical activity can have a beneficial effect by reducing osteoporosis in stroke patients, considering a positive relationship between physical activity and BMD.

로봇보조 보행훈련이 뇌졸중 환자의 운동학적 요인에 미치는 효과 (The Effects of Robot Assisted Gait Training on Kinematic Factors of the Stroke Patients)

  • 김성철;김미경;양대중
    • 대한통합의학회지
    • /
    • 제10권1호
    • /
    • pp.91-99
    • /
    • 2022
  • Purpose : The goal of this study is to examine the effect of robot assisted gait training (RAGT) on the kinematic factors (temporospatial gait parameters, gait cycle ratio, and gait line length) of gait in stroke patients. Methods : The subjects of this study were 24 stroke patients selected by inclusion criteria. Participants were randomly allocated to two groups: robot assisted gait training (n=11) and general neurological physical therapy group (n=11). In the robot-assisted gait training group, robot-assisted gait training was mediated for 30 minutes a day in addition to general neurological physical therapy. The general neurological physical therapy group was mediated by general neurological physical therapy for 30 minutes a day in addition to general neurological physical therapy. The number of interventions was 5 times a week for 5 weeks. In order to compare the kinematic factors of walking between the two groups, gait analysis was performed before and after 5 weeks of training using the Zebris gait analysis system. Results : As a result of the gait analysis of the two groups, there were significant differences in temporospatial gait variables (step length, stride length, step width, step time, stride time), gait cycle ratio (swing phase, stance phase) and gait line length. However, there was no significant difference in the cadence (temporospatial gait parameters) in the robot assisted gait training group compared to general neurological physical therapy group. Conclusion : It is considered to be a useful treatment for stroke patients to promote the recovery of gait function in stroke patients. Based on the results of this study, continuous robot assisted gait training treatment is considered to have a positive effect on gait ability, the goal of stroke rehabilitation. In the future, additional studies should be conducted on many subjects of stroke patients, the kinematic factors of the legs according to the severity of stroke and treatment period, and the effect of gait training.