• PNF and Movement
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• 제20권3호
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• pp.431-441
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• 2022

Purpose: The purpose of this study was to compare the changes in the contact area, maximum pressure, maximum mean pressure, and maximum force of functional insoles and general insoles when walking. Methods: Foot pressure was measured by the ignition of functional insoles and general insoles on Company N shoes. The foot pressure was measured using a precision pressure distribution meter (Pedar - X mobile system, Novel, Germany). Each insole sensor contained 99 independent cells and was inserted between the foot and the shoe. A wireless Bluetooth-type program was used to measure the pressure detected by the measuring insoles. In order to eliminate adaptation and fatigue caused by wearing the guide during the experiment, sufficient rest was taken between each experiment, and the wearing order was randomly selected. Results: Functional insole significantly increased the forefoot and midfoot (medial, lateral) (p<0.05), while total foot, forefoot, and rearfoot peak pressure significantly decreased (p < 0.05) compared to the general insole. Conclusion: In the functional insole, a high contact area was measured inside, even in the middle of the foot, leading to a proper change in foot pressure. It was confirmed that the contact area was reduced and dispersion occurred well. In addition, it was found that the maximum pressure in the front and back of the entire foot was reduced, so the weight pressure dispersion in the functional insole was evenly distributed, and the maximum average pressure change was similar.

• The Journal of Korean Academy of Sensory Integration
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• 제20권3호
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• pp.1-13
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• 2022

Objective : The purpose of this study was to investigate changes in somato-sensory and occupational performance of individually tailored sensory integration interventions for school-age children with somatodyspraxia. Methods : A single subject study with an AB design was conducted the total sessions were 11 sessions, consisting of 3 baseline sessions and 8 intervention sessions. To compare the effects before and after the intervention, the intervention was measured by dividing it into Performance Area (PA) and Performance Factor (PF), and after each intervention session, the Goal Attainment Scale (GAS) was implemented. Results : The children participating in this study showed overall improvement in PA and PF after the intervention, and after each session, it was confirmed that the GAS increased when measuring the target activities (Supine Flexion Posture; SFP, Walking by Arms; WA, Stand on Balance Ball; SBB). Conclusion : This study provided evidence that sensory integration has a positive effect on performing target activities (SFP, WA, SBB) and improving relationships with peers in children with somatodyspraxia.

• Journal of East-West Nursing Research
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• 제2권1호
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• pp.22-36
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• 1997

Functional recovery of cerebrovascular accident (CVA) patients were studied by examining functional independence measure (FIM) to evaluate the functional state of the patients at admission to and at discharge from the hospital and its relationship with the family support. Study subjects consisted of 129 CVA patients, who were admitted and received rehabilitation treatment at K Medical Center of Oriental Medicine from August 3 to December 18, 1997. The results were as follows: 1) Total FIM score was $72.37{\pm}25.16$ at admission and $101.67{\pm}22.13$ at discharge. The difference of average score was 29.30, which was statistically significant by paired t-test. 2) The largest difference between FIM scores at admission and at clischarge was observed in items of walking and wheel-chair riding, and the smallest clifference in items of social interaction. 3) The recovery was faster with motor function than with cognitive function, because the difference of FIM scores at admission and at discharge was much larger with motor function. 4) Recovery was better in groups under age 49 than in groups above age 70. Functional recorvery was prominent especially in groups with normal sensory state and speech functions, and groups without urinary incontinence. Recovery was less significantly in patients with paraplegic patients hospitalized longer than 2 months, patients with family all the time, and patients with CVA over 11 days. 5) We could not find any relationship between functional recovery and family support. FIM scores were lower in groups of old age(r=-0.325), long stayed in hospital (r=-0.426), and long period of time after the onset of disease(r= -0.339) with a reciprocal correlation between FIM scores and these parameters. 6) Stepwise multiple regression analysis was done to evaluate factors to affect the recovery from CVA. FIM score at admission could explain 51.2 % of the functional recovery. Important factors were periods of hospitalization, state of sensory function, age, and education (listed in decreasing order of importance). In total, they could explain 64.89% of the functional recovery. These results indicate that functional recovery of CVA patients, who were admitted to oriental medicine hospital for rehabilitation treatment, could be estimated by measuring FIM scores. Recovery was significantly better at discharge from the hospital than at admission and motor function recovery rate was much faster than that of cognitive function. 2. Recommendation Based on these results, we recommend following further studies. 1) Comparative study of recovery of motor function and of sensory function would be necessary by measuring FIM scores once a week to evaluate the recovery of CVA patients. 2) It would be interesting to see whether there is any difference of functional recovery between patients treated with either western medicine or oriental medicine. 3) Psychological factors affecting the recovery of CVA patients need to be studied.

• KIPS Transactions on Computer and Communication Systems
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• 제12권3호
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• pp.119-126
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• 2023

Sarcopenia is not well known enough to be classified as a disease in 2021 in Korea, but it is recognized as a social problem in developed countries that have entered an aging society. The diagnosis of sarcopenia follows the international standard guidelines presented by the European Working Group for Sarcopenia in Older People (EWGSOP) and the d Asian Working Group for Sarcopenia (AWGS). Recently, it is recommended to evaluate muscle function by using physical performance evaluation, walking speed measurement, and standing test in addition to absolute muscle mass as a diagnostic method. As a representative method for measuring muscle mass, the body composition analysis method using DEXA has been formally implemented in clinical practice. In addition, various studies for measuring muscle mass using abdominal images of MRI or CT are being actively conducted. In this paper, we develop an AI image segmentation model based on abdominal images of CT with a relatively short imaging time for the diagnosis of sarcopenia and describe the multicenter validation. We developed an artificial intelligence model using U-Net that can automatically segment muscle, subcutaneous fat, and visceral fat by selecting the L3 region from the CT image. Also, to evaluate the performance of the model, internal verification was performed by calculating the intersection over union (IOU) of the partitioned area, and the results of external verification using data from other hospitals are shown. Based on the verification results, we tried to review and supplement the problems and solutions.

• The Journal of Korean Institute of Communications and Information Sciences
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• 제38C권12호
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• pp.1106-1113
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• 2013

For patients who have senile mental disorder such as dementia, quantity of excercise and amount of sunlight are important clue for dose and the treatment. Therefore, monitoring health information of daily life is necessary for patients' safety and healthy life. Portable & wearable sensor device and server configuration monitoring data are needed to provide these services for patients. Watch-type device(smart watch) which patients wear and server system are developed in this paper. Smart watch developed includes GPS, accelerometer and illumination sensor, and can obtain real time health information by measuring the position of patients, quantity of exercise and amount of sunlight. Server system includes the sensor data analysis algorithm and web server that doctor and protector can monitor through sensor data acquired from smart watch. The proposed data analysis algorithm acquires quantity of exercise information and detects step count in patients' motion acquired from acceleration sensor and to verify this, the three cases with fast pace, slow pace, and walking pace show 96% of the experimental result. If developed u-Healthcare System for dementia patients is applied, more high-quality medical service can be provided to patients.

• The Korean Journal of Physiology and Pharmacology
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• 제24권1호
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• pp.11-18
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• 2020

The present study was aimed to explore the neuroprotective role of imatinib in global ischemia-reperfusion-induced cerebral injury along with possible mechanisms. Global ischemia was induced in mice by bilateral carotid artery occlusion for 20 min, which was followed by reperfusion for 24 h by restoring the blood flow to the brain. The extent of cerebral injury was assessed after 24 h of global ischemia by measuring the locomotor activity (actophotometer test), motor coordination (inclined beam walking test), neurological severity score, learning and memory (object recognition test) and cerebral infarction (triphenyl tetrazolium chloride stain). Ischemia-reperfusion injury produced significant cerebral infarction, impaired the behavioral parameters and decreased the expression of connexin 43 and phosphorylated signal transducer and activator of transcription 3 (p-STAT3) in the brain. A single dose administration of imatinib (20 and 40 mg/kg) attenuated ischemia-reperfusion-induced behavioral deficits and the extent of cerebral infarction along with the restoration of connexin 43 and p-STAT3 levels. However, administration of AG490, a selective Janus-activated kinase 2 (JAK2)/STAT3 inhibitor, abolished the neuroprotective actions of imatinib and decreased the expression of connexin 43 and p-STAT3. It is concluded that imatinib has the potential of attenuating global ischemia-reperfusion-induced cerebral injury, which may be possibly attributed to activation of JAK2/STAT3 signaling pathway along with the increase in the expression of connexin 43.

• Therapeutic Science for Rehabilitation
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• 제5권2호
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• pp.57-69
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• 2016

Objective: The purpose of this study was to systematically review the articles using accelerometer to measure activity of daily living of patients with stroke. Methods: Depending on selection criteria, 13 studies were searched for PubMed, EMBASE, and Cochrane library database from February 2014 to March 2014. A total of 331 papers were searched, and 13 of these were selected. Results: In studies of 13 selected, acute, subacute, and chronic patients with stroke were enrolled. The kind of accelerometer was uniaxial, biaxial, and triaxial, activity monitor. Measurement activities were mainly arm activity, walking activity, and attachment sites were also various depending on the measurement activities. A measured variable was the total number of activities, the movement speed of the patients, ratio between affected and non-affected, and motion analysis. The result indicated that significant correlation with the other assessment tools in all studies. Conclusions: Accelerometer will be applied with a tool for measuring activity of daily living of patients with stroke, depending on activities characteristics. Further, we need accelerometer studies to apply with a variety of assessment in clinical practice or community settings.

• Journal of muscle and joint health
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• 제27권1호
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• pp.61-70
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• 2020

Purpose: The purpose of this study was to develop a new fall-prevention exercise intervention for the community-dwelling elderly and to examine the effects of program. Methods: A total of 7 older adults were participated in a 10-week fall-prevention exercise intervention (1 day per a week in community centers, 2 days per a week in a home). The exercise program consisted of warming-up, extension exercises, muscle strength exercises, balance exercises, and finishing exercise. Data were collected before the exercise and after 10 weeks of exercise. In this study, muscle strength of lower limbs was measured by 10 times of standing up and sitting on a chair. Static balance was measured by one-leg standing, and dynamic balance was measured by 6 meter walking. Results: After a 10-week exercise program, muscle strength of lower limbs (t=4.18, p<.05), statical balance were significantly improved (left leg, t=-3.11, p<.05; right leg, t=-4.56, p<.05). Seven of 11 items measuring fear of falls were significantly decreased (p<.05), and dynamic balance tended to be improved (p=.117). Conclusion: This result suggests that evidence-based, fall-prevention exercise program can improve muscle strength, static and dynamic balance, and fear of falling in the community living elderly.

• Journal of IKEEE
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• 제25권4호
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• pp.679-688
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• 2021

Gait is an evaluation index used in various clinical area including brain nervous system diseases. Signal source localizing and time-frequency analysis are mainly used after extracting independent components for Electroencephalogram data as a method of measuring and analyzing brain activation related to gait. Existing treadmill-based walking EEG analysis performs signal preprocessing, independent component analysis(ICA), and source localizing by merging data after the multiple EEG measurements, and extracts representative component clusters through inter-subject clustering. In this study we propose an analysis method, without merging to single dataset, that performs signal preprocessing, ICA, and source localization on each measurements, and inter-subject clustering is conducted for ICs extracted from all subjects. The effect of data merging on the IC clustering and time-frequency analysis was investigated for the proposed method and two conventional methods. As a result, it was confirmed that a more subdivided gait-related brain signal component was derived from the proposed "non-merging" method (4 clusters) despite the small number of subjects, than conventional method (2 clusters).

• Journal of Korea Entertainment Industry Association
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• 제14권6호
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• pp.221-230
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• 2020

The purpose of this study was to investigate the effect of resistance exercise with vibration stimulation methods on static balance and gait parameters in experienced back pain adults. This study was Three group pretest-posttest design. A total of 30 experienced back pain adults voluntarily participated in the study. Subjects were randomly assigned to the resistance exercise with 8 Hz vibration stimulation(n=10), resistance exercise with 30 Hz vibration stimulation(n=10), and lumbar stabilization exercise groups(n=10). The static balance and the gait parameters, as such stance phase, swing phase, stride length and cadence, were measured using balance measuring equipment and gait analysis treadmill at before and after 6 week. Intervention of each group were performed, three times a week for 6 weeks, and 30 minutes a day. The effect of intervention on static balance, stance phase, swing phase, stride length and cadence were significantly differences after 6 weeks in each group(p<.05). In the comparison of the effects between the groups, static balance and stance phase were significantly difference after 6 weeks(p<.05), but in the swing phase, stride length and cadence, there were no significant differences. As a result, it is considered that resistance exercise with vibration stimulation improved leg muscle strength by a mechanism causing muscle contraction, and the strengthened leg muscle enhanced had a positive effect on balance ability. And improved balance ability was considered a more positive effect on walking ability by allowing the body to stably control posture while moving.