• Physical Therapy Rehabilitation Science
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• v.10 no.1
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• pp.55-63
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• 2021

Objective: The purpose of this study was to examine the effects of balance training with Functional Electrical Stimulation (FES) on balance and gait in patients with chronic stroke. Design: A cross over design Methods: Nine patients with stroke were recruited into this study. They were measuring their balance ability and gait ability. The intervention "A" included 4 weeks of balance training with Functional Electrical Stimulation (FES) for 40 m/d, 3 d/wk. Intervention "B" included 4 weeks of balance training with placebo Functional Electrical Stimulation (FES) for 40 m/d, 3 d/wk. Of the 9 patients who completed the study, 5 were randomly assigned to" group A-B", and 4 to group B-A. The crossover occurred after 4 weeks. Results: Following are the specific results of balance training with Functional Electrical Stimulation (FES) on patients with chronic stroke. First, patients who received treatment A showed improvement compared with patients who received treatment B in static balance. There were significant decreases in anterioposterior, mediolateral postural sway extension and velocity moment (p<0.05) with their eyes opened and closed conditions. Second, they had significantly improved in dynamic balance (p<0.05). Lastly, there were also improvement in their gait velocity and cadence (p<0.05). Conclusions: These findings suggest that, the Functional Electrical Stimulation (FES) combined with balance training more effectively improves the balance and gait ability, I'm convinced that it could be actively used in clinics added to the conventional physical therapy in the future.

• Journal of Korean Physical Therapy Science
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• v.16 no.4
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• pp.29-37
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• 2009

Background: The purpose of this study was influence of change of electrical stimulation time on body regions affects on electrical current threshold. Methods: The present study is to examine the effect of silver spike point (SSP) electrical stimulation (1Hz), transcutaneous electrical nerve stimulation (TENS, 100Hz), and interferential current therapy (ICT, 50Hz) from the low back and scapulodorsal and knee joint regions on stimulation-induced current thresholds from the elderly (over sixty) people (male:72, female:91) in senior welfare center. Result: The low back region, but not scapulodorsal and knee joint region, significantly increased the TENS and ICT, but not SSP, electrical stimulation, significantly increased the time-dependent current thresholds in elderly patients. Conclusion: Therefore, these results, in part, suggest that the TENS and ICT were shown to be a more adaptable method of stimulation, and that needed of the development of senile specialized physical therapy and the utilization of senior leisure facilities such as senior welfare center the others.

• Physical Therapy Rehabilitation Science
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• v.10 no.3
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• pp.374-378
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• 2021

Objective: Bilateral movement training is an effective method for upper extremity rehabilitation of stroke. An approach to induce bilateral movement through functional electrical stimulation is attempted. The purpose of this study is to develop an EMG-triggered functional electrical stimulation device for upper extremity bilateral movement training in stroke patients and test its feasibility. Design: Feasibility and Pilot study design. Methods: We assessed muscle activation and kinematic data of the affected and unaffected upper extremities of a stroke patient during wrist flexion and extension with and without the device. Wireless EMG was used to evaluate muscle activity, and 12 3D infrared cameras were used to evaluate kinematic data. Results: We developed an EMG-triggered functional electrical stimulation device to enable bilateral arm training in stroke patients. A system for controlling functional electrical stimulation with signals received through a 2-channel EMG sensor was developed. The device consists of an EMG sensing unit, a functional electrical stimulation unit, and a control unit. There was asymmetry of movement between the two sides during wrist flexion and extension. With the device, the asymmetry was lowest at 60% of the threshold of the unaffected side. Conclusions: In this study, we developed an EMG-triggered FES device, and the pilot study result showed that the device reduces asymmetry.

• Journal of Korean Physical Therapy Science
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• v.5 no.4
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• pp.817-830
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• 1998

The purpose of this study is to investigate the relationship between effects of TENS (Transcutaneous Electrical Nerve Stimulation) and IFC(Interferrential Current Therapy) to the change of body surface temperature. Cases are 22 normal persons and 22 patients with low back pain. Digital Infrared Thermal Imaging system was used for the detection of body surface temperature. 50Hz in frequency and 25-35mA in intensity were applied to TENS and IFC, 15 and 10 minutes on each. The results were follows ; 1. TENS and IFC has on effect of decreasing surface temperature, which would be from cardiovascular factors. (P<0.001) 2. The influence of IFC to the body surface temperature is greater than TENS, and it seems to be vasoconstriction of sympathetic activity. 3. There were no significant differences of body surface temperature between the two groups before and after electrical stimulation.

• Physical Therapy Korea
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• v.14 no.2
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• pp.37-43
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• 2007

Electrical acupuncture has been shown to induce hypoglycemic effect in streptozotocin diabetic rats. The Zusanli acupoints have been widely used in traditional Chinese medicine to relieve symptoms of diabetes mellitus. But, the effects of electrical acupuncture stimulation of different frequencies are still unclear. We designed an experiment to investigate the effect of electrical acupuncture of high (100 Hz) and low (2 Hz) frequencies on Zusanli acupoint for 15 minutes in streptozotocin diabetic rats. They were divided into 4 groups, high frequency electrical acupuncture (HFEA group, n=5), low frequency electrical acupuncture (LFEA group, n=5), without any treatment (control group, n=5) and normal group (n=5). After 2 weeks of treatment, the HFEA and LFEA groups had a significantly decreased glucose concentration in serum in comparison to the control group. Additionally, the HFEA group had a significantly decreased glucose concentration in serum compared with the LFEA group. Both the HFEA and LFEA groups had a significantly decreased Immunoglobulin G concentration in serum compared with control group. The LFEA and control groups had a significantly increased cholesterol concentration in serum compared with the normal group, but the HFEA did not have a significantly increased cholesterol concentration. Thus we suggest that electrical acupuncture stimulation at the Zusanli acupoints is effective on hypoglycemic effect and immune function. Overall, the therapeutic effects of electrical acupuncture at 100 Hz was better than effects at 2 Hz.

• Journal of Korean Physical Therapy Science
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• v.8 no.1
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• pp.859-867
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• 2001

The purpose of this single subject care study was to evaluate the effectiveness of a functional electrical stimulation(FES) treatment program designed to prevent glenohumeral pint stretching and subsequent subluxation and shoulder pain in hemiplegic patients. The subject was a 43-year-old male who had left side hemiparesis with shoulder pain and subluxation on affected side. He received conventional physical therapy and additional FES therapy where two flaccid shoulder muscles, supraspinatus and posterior deltoid. were induced to contract repetitively up to 20 minutes for 2 weeks. As a result. the patient showed improvements in hemiplegic arm function, reduction in subluxation(as indicated by Jig test) and range of motion(SLROM). But it was difficult to generalize. We concluded that the FES program was effective in reducing the severity of shoulder subluxation and pain. Further study must be evaluated its statistical significance.

• International Neurourology Journal
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• v.22 no.4
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• pp.295-304
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• 2018

Purpose: To compare the effects of intra-anal biofeedback (BF) and intra-anal electrical stimulation (ES) on pelvic floor muscles (PFMs) activity, nocturnal bladder capacity, and frequency of wet night episodes in children with refractory primary monosymptomatic nocturnal enuresis (PMNE). Methods: Ninety children of both sexes aged 8-12 years with refractory PMNE participated in this study. They were randomly assigned to 3 groups of equal number: control group (CON) that underwent behavioral therapy and PFM training, and 2 study groups (BF and ES) that underwent the same program in addition to intra-anal BF training and intra-anal ES, respectively. PFMs activity was assessed using electromyography, nocturnal bladder capacity was evaluated by measuring the first morning voided volume, and a nocturnal enuresis diary was used for documenting wet night episodes before treatment and after 3 months of treatment. Results: After training, all groups showed statistically significant improvements in all measured outcomes compared to their pretreatment findings. The ES group showed significantly greater improvements in all measured outcomes than the CON and BF groups. Conclusions: Both intra-anal BF training and ES combined with behavioral therapy and PFMs training were effective in the treatment of PMNE, with intra-anal ES being superior to BF training.

• Physical Therapy Korea
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• v.11 no.2
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• pp.47-63
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• 2004

In most tissues, apoptosis plays a pivotal role in normal development and in regulation of cell number. Therefore inappropriate apoptosis is revealed in a variety of diseases. This study was carried out to investigate the effects of acupuncture and needle electrode electrical stimulation on the change of caspase-3, 9 and neuronal nitric oxide synthase (nNOS) immunoreactive cells in the sprague dawley rats (SD rat). In immobilized SD rats (n=5), enhanced caspase-3 and caspase-9 expression were detected in the reticular part of substantia nigra, and enhanced nNOS was detected in the dorsolateral periaqueductal gray (DL-PAG) of midbrain and the paraventricular nucleus (PVN) of the hypothalamus using immunohistochemistry. Following the immobilization, acupuncture (n=5) and needle electrode electrical stimulation (n=5, 2 Hz) was applied at H$\acute{e}$g$\breve{u}$ (LI4) acupoint of SD rats, respectively. The stress-induced enhancement in the expression of caspase-3, 9 and nNOS were The present results demonstrate that and needle electrode electrical stimulation are effective in the modulation of expression of caspase-3, 9 and nNOS induced by immobilization.

• Journal of Korean Physical Therapy Science
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• v.10 no.2
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• pp.73-85
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• 2003

The purpose of the present study was to the investigate the effect of sports massage, kaltenborn-evjenth orthopedic manipulative therapy and electrical therapy, general exercise on the limitation of range of motion(ROM) and on the pain(VAS) in patients with frozen shoulder. Fiftheen frozen shoulder patients between 50 and 60 years of age(females) were selected and were divided equally by random distribution into A group(sports massage, kaltenborn-evjenth orthopedic manipulative therapy, N=7)and B(electrical therapy, general exercise therapy, N=7) group. The results obtained were as follows : 1) The range of motion between two groups are significantly different in the treatment times, the ROM of A group increase in after-treatment(2 week 4 week) in comparison with ROM in before-treatment, it is significant increase. And it is significant difference in B group. 2) The pain level between two groups are not significantly different in the treatment times, the pain level of A group decrease in after-treatment(2 week, 4 week) in comparison with before-treatment, it is significant decrease. And it is significant difference in B group. Although the pain level of the A group decrease in after 2 week treatment in comparison with before-treatment but it is not significant decrease. Although the pain level of the B group decrease in after 4 week treatment in comparison with after 2 week treatment, but it is not significant decrease. 3) The A group is more effective in increasing the ROM and decreasing the pain level than B group during treatment times. The results showed that both A group method and B group method are effective ROM increase and pain reduce, but A group method is superior to B group method in ROM increase and pain reduce.

• The Journal of Korean Physical Therapy
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• v.34 no.5
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• pp.205-211
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• 2022

Purpose: This study investigated the effects of an intervention that combined the abdominal drawing-in maneuver and frequency-specific neuromuscular electrical stimulation on changes in trunk muscle activity, muscle fatigue, and balance in stroke patients. Methods: Thirty stroke patients were randomly assigned to two groups. Fifteen subjects were assigned to group I which performed the abdominal drawing-in maneuver combined with low-frequency neuromuscular electrical stimulation and the other 15 subjects to group II where the abdominal drawing-in maneuver was combined with high-frequency neuromuscular electrical stimulation. Muscle activity and fatigue were measured using surface electromyography before the intervention. Balance was measured using the Trunk Impairment Scale and re-measured after six weeks of intervention for comparative analysis. Results: Both groups showed a significant increase in muscle activity and balance (p<0.05), and there was no significant difference between the groups (p>0.05). In the changes in muscle fatigue, only the experimental group II showed a significant increase in muscle fatigue (p<0.05). The difference between the groups was statistically significant (p<0.05). Conclusion: It was confirmed that among stroke patients, the combination of the abdominal drawing-in maneuver and low-frequency neuromuscular electrical stimulation was more effective in changing the muscle activity and balance of the trunk by minimizing the occurrence of muscle fatigue compared to the combination of the abdominal drawing-in maneuver and high-frequency stimulation. These results can be used as basic data for clinical trunk stabilization training.