• Journal of Biomedical Engineering Research
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• v.36 no.5
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• pp.198-203
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• 2015

The purpose of the study is to examine the effects of pacemaker location on cardiac pumping efficacy theoretically. We used a three-dimensional finite element cardiac electromechanical model of canine ventricles with models of the circulatory system. Electrical activation time for normal sinus rhythm and artificial pacing in apex, left ventricular free wall, and right ventricular free wall were obtained from electrophysiological model. We applied the electrical activation time maps to the mechanical contraction model and obtained cardiac mechanical responses such as myocardial contractile ATP consumption, stroke work, stroke volume, ejection fraction, and etc. Among three artificial pacing methods, left ventricle pacing showed best performance in ventricular pumping efficacy.

• Journal of muscle and joint health
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• v.19 no.2
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• pp.107-119
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• 2012

Purpose: This study was conducted to extract international classification of functioning, disability, and health (ICF) core sets for measuring functional status in acute stroke patients, and to evaluate clinical applicability of the core sets. Methods: A set of 22 ICF items on functional status in acute stroke patients were extracted from the Korean general ICF core sets and ICF core sets for stroke patients. The extracted ICF functional items were assessed at the time of admission and discharge among 100 stroke patients who were admitted in a university hospital. Results: Comparing to functional status at admission of acute stroke patients, the overall functional status at discharge was improved. However, functions on defecation, skin protection, and relationship with immediate family at the time of discharge were not significantly changed. Conclusion: The set of ICF functional items identified in this study may be reliable and valid to assess acute stoke patients' body functions, activities and participation and environmental factors in the holistic and comprehensive nursing context. Nursing interventions on bowel elimination and skin protection for acute stroke patients need to be developed.

• The Journal of Korean Physical Therapy
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• v.31 no.4
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• pp.212-215
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• 2019

Purpose: This study examined whether there is a difference in motor learning through short-term repetitive movement practice in stroke survivors with a unilateral brain injury compared to normal elderly participants. Methods: Twenty-six subjects who were divided into a stroke group (n=13) or sex-aged matched normal elder group (n=13) participated in this study. To evaluate the effects of motor learning, the participants conducted a tracking task for visuomotor coordination. The accuracy index was calculated for each trial. Both groups received repetitive tracking task training of metacarpophalangeal joint for 50 trials. The stroke group performed a tracking task in the upper extremity insi-lesional to the damaged hemisphere, and the normal elder group performed the upper extremity matched for the same side. Results: Two-way repetitive ANOVA revealed a significant difference in the interactions ($time{\times}group$) and time effects. These results indicated that the motor skill improved in both the stroke and normal elder group with a tracking task. On the other hand, the stroke group showed lesser motor learning skill than the normal elder group, in comparison with the amount of motor learning improvement. Conclusion: These results provide novel evidence that stroke survivors with unilateral brain damage might have difficulty in performing ipsilateral movement as well as in motor learning with the ipsilateral upper limb, compared to normal elderly participants.

• The Journal of the Society of Stroke on Korean Medicine
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• v.14 no.1
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• pp.8-14
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• 2013

■ Objectives The goal of this study is to find the correlation between the motor function and gait pattern of stroke patients. ■ Methods We measured Manual muscle test(MMT), Motricity index(MI) and Spatiotemporal gait parameters of admitted hemiplegic patients with stroke. The gait parameters were measured using a Treadmill gait system. ■ Results There is a significant correlation between motor function and spatiotemporal parameters such as step length, stride length, step time, stride time, total double support or cadence, in stroke patients. ■ Conclusion The better motor function of stroke was, the more gait improved.

• Journal of Acupuncture Research
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• v.20 no.2
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• pp.29-41
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• 2003

Clinical observation was made on 52 cases of Stroke that were confined through brain CT, MRI scan. The Stroke cases wee classified into the following kinds cerebral infarction, cerebral hemorrhage, cerebellar or brain stem infarction, cerebellar or brain stem hemorrhage. And among the 52 cases of Stroke cerebral infarction was noticed in 75.00%, cerebral hemorrhage in 11.54%, cerebellar or brain stem infarction in 9.52%, cerebellar or brain stem hemorrhage in 3.85%. The ratio between males and females was 1.74:1 in the whole groups of Stroke and most cases were over 60 of age. As the time of hospitalization, most patients hospitalized from 1 day after stroke to 7 days after stroke. And as the course of hospitalization, most patients hospitalized first. Among the preceding disease at the onset of Stroke hypertention was noted in 32.69%, and deabetes mellitus or heart problem was noted frequently(15.39%). Electrocardiography findings were as follows: The normal was noted in 53.85%, the abnormal in 46.15%. And as the abnormal, left ventricular hypertrophy was noted in 17.54%. The predisposing factors or conditions at the onset of brain infarction were usually initiated during the time of sleeping and those of brain hemorrhage chiefly during the time of exercising like overwork or walking etc. It was noted that smoking a pack of cigarette showed highest disease rate(33.33%) among the average of smoking amount of one day in case of man. Prior to attack, the most chiefly complain was dyspnea or discomfort on chest region. And 30.70% of patients had no previous sign. There were a large number of recurrent cases. The first attack was noted in 71.15%, the 2nd attack in 23.08%, the 3rd attack in 5.77%.

• The Journal of Internal Korean Medicine
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• v.18 no.1
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• pp.62-68
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• 1997

Dysphagia generally has a good prognosis after stroke involving cerebral hemisphere or braibstem, but it could have serious consquence with dehydration leading to haemoconcentration, renal failure and aspiration leading to pneumonia. This preliminary report was written for main report. The main report will be written to give an objective guide post of management and treatment in stroke patient with dysphagia. The objective guide posts were follows as, 1. Close examination for relationship between dysphagia in stroke patients and other neurological deficits 2. Influence on the prognosis of dysphagia in stroke patients by the grade of dysphagia at admission time. 3. The realtionship between the site and size of brain damage and the grade and prognosis of dysphagia 4. The frequency and prognosis of dysphagia in stroke patients according to sex and age. 5. The rate and speed of recovery with dysphagia after stroke. 6. Frequency and process of complications, aspiration pneumonia, weight loss, sore, in stroke patient group with dysphagia.

• The Journal of Korean Physical Therapy
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• v.24 no.5
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• pp.325-333
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• 2012

Purpose: The purpose of this study was to determine the concurrent validity between Figure-of-8 Walking Test (F8W), Berg Balance Scale (BBS), Four Squared Step Test (FSST), and Timed UP and GO Test (TUG) in patients with stroke. Methods: Forty two participants (26 men, 16 women, $55.0{\pm}11.72$) with at least three months post stroke who were able to walk at least 10 m without walking aid participated in this study. Assessment of concurrent validity between the F8W (time and steps) and BBS was performed using Spearman rank order correlation and between the F8W (time and steps), FSST and TUG assessed using Pearson correlation. Results: The time of the F8W showed correlation with BBS (r=-0.46, p<0.01), FSST (r=0.64, p<0.01), and TUG (r=0.81, p<0.01), and steps of the F8W showed correlation with BBS (r=-0.43, p<0.01), FSST (r=0.47, p<0.01), and TUG (r=0.51, p<0.01). Conclusion: The F8W is a valid measure of balance and walking skill among patients with stroke and may provide complementary information with regard to dynamic balance and functional walking for the real life of stroke patients.

• Korean Journal of Adult Nursing
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• v.24 no.1
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• pp.1-10
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• 2012

Purpose: Among the sources of anxiety and burden of family caregivers of stroke patients, this study investigated the role of self-efficacy and knowledge about care. Methods: Descriptive and correlational study design was used. One hundred and thirteen subjects were included. They were anticipated family caregivers of stroke patients. All patients were hospitalized at the intensive care unit (ICU) for the first time as a stroke patients. Data of family caregivers were collected during the time that patients were in the ICU with self-reported standardized questionnaire. Pearson's correlation coefficients and regression analysis were used to explore the role of self-efficacy and knowledge. Results: Self-efficacy was correlated with burden, but not with anxiety. Knowledge about care was correlated with anxiety and burden. Only knowledge about care was the significant predictor of anxiety and burden of anticipated family caregivers. Conclusion: The knowledge about care for stroke patients is important especially to the family caregivers who have to care stroke patients for the first time to reduce their anxiety and burden.

• Physical Therapy Rehabilitation Science
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• v.9 no.4
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• pp.222-229
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• 2020

Objective: The purpose of this study was to investigate the effect of treadmill exercise on the posture and walking speed of chronic stroke survivors with an ankle-foot orthosis. Design: Randomized controlled trial. Methods: Twenty-four chronic persons with chronic stroke admitted to Bobath Memorial Hospital in Seongnam city were divided into two groups by random blind method. Treadmill exercise with an elastic ankle-foot orthosis was performed in the experimental group and treadmill exercise was performed in the control group. The experiment was carried out for 6 weeks, and the experiment was carried out three times a week for 20 minutes per session. To measure the effect, static balance was measured using the MTD system before and after training, and the Berg Balance Scale (BBS) was used to measure functional balance. Results: There was a statistically significant difference between the 2 groups in the BBS measurement results for confirming the functional balance (p<0.05). Also, there was a significant difference between the 2 groups in single limb support time, step time and step length (p<0.05). Conclusions: In this study, it was found that treadmill exercise with an elastic ankle-foot orthosis in persons with chronic stroke was effective in maintaining functional balance, walking ability, step length, and step time. Therefore, it is necessary to use a flexible ankle-foot orthosis with proper treadmill exercise as a method of improving balance and walking speed of chronic stroke survivors.

• The Journal of Korean society of community based occupational therapy
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• v.4 no.1
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• pp.1-10
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• 2014

Objective : The purpose of this study was to comparatively analyze time use and quality of life in stroke patients who use Local community or convalescent Hospital environment. Methods : The study subjects were 74 stroke patients who were admitted to convalescent Hospital or who were being rehabilitated as outpatients. The Occupational Questionnaire(OQ)was used for measuring time use and the Stroke Specific Quality of Life(SS-QOL) utilized to measure Quality of life. Excluding 8 patients who did not fit selection criteria, 66 patients were selected and analyzed. Results : After comparatively analyzing time use in Local community and convalescent Hospital environment, significant differences were found in daily living(p<.05), resting(p<.05). In addition, in quality of life, significant differences were found in family(p<.05), self-management(p<.05), and social roles(p<.05). Conclusion : Local community patients used their time in daily living, resting more efficiently than convalescent Hospital patients, and also had a higher quality of life.