• The Journal of Korean Physical Therapy
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• 제13권3호
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• pp.685-692
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• 2001

Study the variation of low frequency electrical stimulation on human metabolism which serum to test the increasement of creatine- kinase, myoglobin, lactate .and pyruvate. The results were as followed: 1) Creatine kinase increasement showed significant difference between 200 Hz stimulation group and control group, and also between 300Hz stimulation group and control group, but no significant increasement difference showed in 50 Hz stimulation group compared to control group. 2) Lactate increasement showed significant difference in 200 Hz stimulation group and 300 Hz stimulation group compared to control group, but no significant difference showed in 50 Hz stimulation group. 3) Pyruvate increasement showed significant difference in 50 Hz stimulation group and 200 Hz stimulation group compared to control group, but no significant increasement difference showed between 50 Hz stimulation group and control group. (P < 0.05) 4) Myoglobin increasement showed significant difference in 50Hz stimulation group and 200 Hz stimulation group compared to control group, and also in 200 Hz stimulation group and 300 Hz stimulation group compared to 50Hz stimulation group. ( P < 0.05)

• 대한물리의학회지
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• 제7권4호
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• pp.443-450
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• 2012

PURPOSE: This study was investigated to find the validity of active movement control test for low back pain patients with or without hamstring shortening. METHODS: The subjects of this study were 28 subjects and all of them agreed to participate in the study. All subjects were classified according to 4groups. Group1 was no LBP, no hamstring shortening. Group2 was no LBP, hamstring shortening. Group3 was LBP, no hamstring shortening. Group4 was LBP, hamstring shortening. We measured to see their low back pain and hamstring shortening with VAS, Goniometer for active movement control test. We analyzed the data using Cochran Q test and crosstabulation for agreement index. RESULTS: The results of this study were as follows : 1) Low back pain had effect on active movement control by Group1 and Group2. 2) Hamstring had effect on active movement control by Group1 and Group2 3)Low back pain with or without hamstring shortening had effect on active movement control by Group4 CONCLUSION: According the results of this study, active movement control test were significantly influenced on low back pain and hamstring interaction.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제6권9호
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• pp.2052-2072
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• 2012

Access control is an essential security component in protecting sensitive data and services from unauthorized access to the resources in mission-critical Cyber-Physical Systems (CPSs). CPSs are different from conventional information processing systems in such that they involve interactions between the cyber world and the physical world. Therefore, existing access control models cannot be used directly and even become disabled in an emergency situation. This paper proposes an adaptive Access Control model for Emergences (AC4E) for mission-critical CPSs. The principal aim of AC4E is to control the criticalities in these systems by executing corresponding responsive actions. AC4E not only provides the ability to control access to data and services in normal situations, but also grants the correct set of access privileges, at the correct time, to the correct set of subjects in emergency situations. It can facilitate adaptively responsive actions altering the privileges to specific subjects in a proactive manner without the need for any explicit access requests. A semiformal validation of the AC4E model is presented, with respect to responsiveness, correctness, safety, non-repudiation and concurrency, respectively. Then a case study is given to demonstrate how the AC4E model detects, responds, and controls the emergency events for a typical CPS adaptively in a proactive manner. Eventually, a wide set of simulations and performance comparisons of the proposed AC4E model are presented.

• 대한임상전기생리학회지
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• 제5권1호
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• pp.73-83
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• 2007

This study aims to examine the effects on nociceptive neuron excitability by application of electroacupuncture in rat with inflammation. It used 20 rats for experiment, divided them into control group, electroacupuncture group (EA group), caused hyperalgesia by injecting ${\lambda}$-carrageenan into hindpaw and conducted treatment three times for experimental period. Change of NFR(reaction time, RMS) showed no significant differences among EA group showed significant differences compared to control group from 48 hours. This study showed that EA group had an effect on nociceptive neurone excitability. Therefore, it is considered that electroacupuncture for pain control will be very desirable.

• 대한물리의학회지
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• 제3권2호
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• pp.121-125
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• 2008

Purpose : The objective of this study was conducted to find out the treatment of joint problems. Methods : This is a literature study with books, seminar note and international course books. Results : Passive oscillation and distraction movement therapy is only joint mobilization and pain control. In the joint therapy need muscle strengthening, training of eccentrical control and neurophysiological therapy for joint mobility, stability, stability of mobility and skill. Conclusion : Joint therapy is not only joint mobility but also strengthening of soft tissue. Need the neurophysiological therapy those are use of ventromedial motor nucleus and dorsolateral motor nucleus, reciprocal inhibition, eccentrical muscle contraction training, proprioceptors and exteroceptor for structures and functional activities. For the pain control, reduce swelling, keeping GAGs and functional activities need direct and indirect therapy.

• The Journal of Korean Physical Therapy
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• 제12권1호
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• pp.65-71
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• 2000

This study investigated the effect of anticipatory postural adjustment on balance performance in postural disturbance. Any action performed by standing subject is generally accompanied by compensatory postural activities, which reduce or abolish the postural disturbance generated by the movement and keep the subjects' center of gravity within the supporting base. These Postural activities arc triggered by either anticipatory and feedback postural control. We studied the difference of anticipatory and feedback postural control in postural disturbance. The subjects were standing on a foot plate with eyes closed, holding a lead of $5\%$ of their own body weight in their hands. The condition of anticipatory postural adjustment was applied voluntarily releases the a load. The condition of feedback postural control was applied that the load was unpredictably removed. We concluded that anticipatory postural adjustment becomes more efficient to postural performance in postural disturbance.

• The Journal of Korean Physical Therapy
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• 제32권6호
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• pp.391-393
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• 2020

Objectives: We investigated injury of corticostriatal (CStr) tract in patient with mild traumatic brain injury (mTBI), which was demonstrated by DTT. Method: A 44-year-old female with no previous history of neurological, physical, or psychiatric illness had suffered from head trauma resulting from a pedestrian car accident. She complained that could not quickly move the left hand with her intension. After three month's administration, her slowness movement of left hand recovered rapidly to the point that she was able to extend all fingers quickly. Results: On DTT configuration, the integrity of the left CStr tract was well-preserved, however the right CStr tract showed narrowing and partial tearing in the subcortical white matter on a DTT at 25 months after onset. Conclusion: Injury of the right CStr tract was demonstrated in a patient who developed mild motor control problems following mild TBI. We believe that the evaluation of the CStr tract from the secondary motor area for patients who showed unexplained motor control problem is necessary.

• Journal of Power Electronics
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• 제18권6호
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• pp.1771-1779
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• 2018

Modern trams with a super capacitor have gained a lot of attention in recent years due to its reliability, convenience, energy conservation and environmental friendliness. Because of its special charging characteristic, the traditional charging structure and control strategy cannot satisfy its charging requirements. This paper presents a new charging topology for fast charging modern trams with a super capacitor and it designs a controller using continuous control set model predictive control (CCS-MPC). There are three contributions in this paper. First, a new charging structure is designed and its mathematics model is derived. The cascade structure is adopted instead of the parallel structure to simplify the control process and to keep the rated power of the controllable part low. Second, a MPC control strategy is proposed to satisfy the charging characteristic. The optimal control signal can be obtained by solving the designed optimization problem. The optimal control signal is related to the discrete control action. In addition, mapping between the continuous control signal and the discrete control action is designed. Third, a semi-physical experimental platform is built to verify the proposed topology and control method. The simulation model and experiment platform are built to verify the correctness of the new structure and its control method. The results obtained show that the new topology can work effectively.

• 대한지역사회영양학회지
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• 제15권1호
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• pp.73-82
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• 2010

This study was conducted to investigate the effects of a weight control programs on BMI, nutrition knowledge, physical fitness and stress level of adult obese women. The subjects of this study were 36 adult obese women aged 30-65 years whose BMI were above $23\;kg/m^2$. The weight control program for obese women included nutritional education, exercise and cognitive behavioral therapy for 12 weeks. The BMI of the subjects was significantly decreased (p < 0.001) from $27.1\;kg/m^2$ to $26.4\;kg/m^2$ after the 12 weeks of the weight control program. In addition, the weight of body fat was significantly decreased (p < 0.001) and % body fat was significantly decreased (p < 0.05) from 35.4% to 34.9% after completion of the weight control program. In addition, nutritional knowledge (p < 0.001) and eating behavior scores (p < 0.01) were significantly increased. However, the food intake scores were not changed after the program. Stress levels of the adult obese women were significantly decreased (p < 0.001) from 85.63 to 66.88 and also obesity stress levels were significantly decreased (p < 0.01) after the weight control program. In the physical fitness levels of the subjects, muscle endurance (p < 0.05) and ability of balance (p < 0.01) were significantly improved after completion of the weight control program. There were positive significant correlations between general stress and obesity stress level (p < 0.05), and negative correlations between stress level and food intake score (p < 0.05). These results showed that the weight control program for adult obese women may be effectively used to improve weight reduction, physical fitness and stress levels.

• 대한물리의학회지
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• 제14권4호
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• pp.143-152
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• 2019

PURPOSE: This examined the effects of a sling exercise based on music on the cognition, physical performance of patients with dementia. METHODS: Thirty subjects with dementia volunteered to participate in this study. All subjects were allocated randomly to either the experimental group or control group, with 15 subjects in each group. All subjects underwent the exercise program for an average of 60 minutes per day for 16 weeks. The experimental group performed sling exercise based on music, and the control group performed the general exercise program. Assessments were made using the Korean version of mini-mental state examination (MMSE-K), 10 m walk test (10MWT), Tinetti mobility test (TMT), and Katz's Index of Independence in activity daily living (KIIADL) to detect changes in the cognitive level and physical performance before and after the 16-week training period. A paired t-test was conducted to compare the within-group change before and after the intervention. An independent t-test was performed to compare the between-group difference. The statistical significance level was set to α=.05 for all variables. RESULTS: The experimental group showed significant within-group changes in the MMSE-K, 10MWT, TMT, and KIIADL (p<.05). The control group showed a significant change in only the KIIADL (p<.05). A significant difference was observed between the experimental group and the control group regarding the change in MMSE-K and KIIADL after the interventions (p<.05). CONCLUSION: A music-based sling exercise program effectively improves cognition, physical performance, and ADL in patients with dementia. Further studies with a wider range of subjects and scientific equipment will be needed to strengthen the results of this study.