• Physical Therapy Korea
• /
• v.7 no.3
• /
• pp.81-89
• /
• 2000

The purpose of this study was to determine the effect of electrical stimulation biofeedback on motor learning of quadriceps muscle isometric exercise in 3 patients who have undergone total knee replacement surgery. A multiple baseline design across subjects was used. The electrical stimulation biofeedback was provided with each patient during quadriceps isometric exercise, which last 10 to 14 sessions with 10 repetitions each sessions. After training patients received 4 retention tests. Maximum muscle activity was measured pre- and post- electrical stimulation biofeedback training and retention test to evaluate the effect of biofeedback training. Maximum isometric muscle activity of quadriceps was increased after electrical stimulation biofeedback training in all subjects. The results indicate that a electrical stimulation biofeedback training is a useful method to improve motor learning of quadriceps isometric exercise in total knee replacement.

• Journal of the Korean Academy of Clinical Electrophysiology
• /
• v.7 no.1
• /
• pp.17-21
• /
• 2009

Purpose : The purpose of this study was to analysis the effect of electrical stimulation for dysphagia caused by cerebral infarction. Methods : We recruited nineteen adults after cerebral infarction(14 male, 5 female; mean age, 69y) for our study. Electrical stimulation was used for participants with electrical stimulator connected to two pair of electrodes positioned on the neck for one hour a day and 5 times a week for 4 weeks. Maximum tolerated stimulation levels were applied at rest while participants held their mouth closed. Videofluoroscopic recordings, physical examination of swallowing, and swallow function score were used to evaluate swallowing state of participants. All evaluate items were evaluated before and after treatment. Results : There was no significance difference of swallowing stage. The swallow function score significantly increased from 1.8 to 5.3(p<0.001). Also, cough reflex(p<0.001), laryngeal excursion(p<0.01) were significantly reduced compared to before electrical stimulation. Conclusion : Therefore, electrical stimulation for dysphasia is proved effective as it activates the function of swallowing muscle.

• Journal of The Korean Society of Integrative Medicine
• /
• v.6 no.3
• /
• pp.11-16
• /
• 2018

Purpose: Stress tends to cause sympathetic hyperactivity and increase blood cortisol levels. The vagus nerve is a parasympathetic nerve that is involved in relaxing the body. The purpose of this study was to investigate the effects of electrical stimulation of the vagus nerve on stress hormone (cortisol) levels and heart rate variability (HRV) in humans. Methods: A total of 10 healthy subjects participated in the pilot experiment. All subjects underwent electrical vagus nerve stimulation for 20 minutes in the cymba conchae of the left ear. An electro cardiogram meter was used to measure HRV. Blood samples were collected and analyzed for cortisol levels. The standard deviation of all normal N-N intervals (SDNN), root mean square of successive differences (RMSSD), low frequency, high frequency, and cortisol levels were compared in pre and post mean values after the intervention. Data were analyzed using the Wilcoxon's signed-rank test. Results: Coritsol levels were observed to decrease after vagus nerve electrical stimulation. The mean SDNN and RMSSD values were increased after the intervention, but not significantly. Conclusion: Vagus nerve electrical stimulation has been shown to increase the ability of the parasympathetic nerve to adapt to upward regulation and stress. Vagus nerve electrical stimulation could thus be an effective treatment for modern social psychological stress control.

• Physical Therapy Korea
• /
• v.11 no.3
• /
• pp.33-42
• /
• 2004

The purpose of this study was to assess the effect of rehabilitation exercise and neuromuscular electrical stimulation on a visual analysis scale and functional visual analysis scale regarding functional capacity. A total of 7 consecutive patients with the complaint of patellofemoral pain syndrome who received this diagnosis from a sports medicine physician were recruited to assess the effect of rehabilitation exercise and neuromuscular electrical stimulation (NMES) on Visual Analog Scale (VAS) and Functional Visual Analog Scale (FVAS), functional capacity patients with patellofemoral pain syndrome. The exercise rehabilitation consisted of a complex training program requiring five treatments a week for eight weeks. The training program consisted of four phases, and each lasted for two weeks. Statistical analyses were one-way ANOVA with repeated measures. The results were as follows: (1) There were significant differences in the VAS and FVAS during 8-weeks of rehabilitation exercise and neuromuscular electrical stimulation (p<.01). (2) There were no significant differences in the functional capacity during 8-weeks of rehabilitation exercise and neuromuscular electrical stimulation (p<.05). In conclusion, at the end of the eight weeks of this rehabilitation program and neuromuscular electrical stimulation, a significant reduction was found in VAS and FVAS, but there was no significant difference in functional capacity at the end of the treatment.

• Journal of East-West Nursing Research
• /
• v.11 no.1
• /
• pp.5-11
• /
• 2005

Purpose: This study is to examine the effect of electrical muscle stimulation therapy on chronic knee pain for aged. Method: Design was randomized one-group pretest-posttest design. Samples were total 15 elderly on 60 years old and above with chronic knee pain. Measures were S-F McGill Pain Questionnaire and Arthritis Impact Measurement Scale for knee pain. Electrical muscle stimulation therapy, experimental treatment was applied on chronic knee pain for 4 weeks, 3 times/week, 15 min/time. Data were collected from half March 2005 to May 2005. Data were analyzed using SPSS PC+ 12 version. Descriptive statistics was used for analysis of general characteristics in sample, and paired t-test was used to analysis the effect of electrical muscle stimulation therapy. Results: After receiving the electrical muscle stimulation therapy chronic knee pain was significantly decreased (t=-29.163, P=.000 in S-F MPQ; t=-37.005, P=.000 in AIMS). Conclusion: Electrical muscle stimulation therapy can be a better effective primary nursing intervention on chronic knee pain for aged in community.

• Journal of International Academy of Physical Therapy Research
• /
• v.2 no.2
• /
• pp.339-343
• /
• 2011

The purpose of this study is to see the effect of functional electrical stimulation on forced vital capacity and alternating motion rate in children with spastic cerebral palsy. This study divided 20 children with spastic cerebral palsy into two groups; functional electrical stimulation treatment group and control group. Functional electrical stimulation treatment group had 20min per day treatment three times a week for four weeks and the control group did not have any treatment. Before and after intervention, this study measured forced vital capacity and alternate motion rate(/peo/,/teo/) for all children. Forced vital capacity showed statistically significant increase for the group with functional electrical stimulation(p<.05) while the control group did not show any significant increase(p>.05). Alternate motion rate showed statistically significant increase for the group with functional electrical stimulation(p<.05) while the control group did not show any significant increase(p>.05). This result shows that functional electrical stimulation affected the ability of the children with spastic cerebral palsy who have decreased breathing and phonation capability.

• Journal of Korean Physical Therapy Science
• /
• v.11 no.1
• /
• pp.28-35
• /
• 2004

The purpose of the present study was to investigate the effectiveness of silver spike point (SSP) low frequency electrical stimulation on glomerular filtration rate (GFR), specifically, such as diuretic action in 24 hour urine and in plasma analysis from normal volunteer. The current of 1 Hz continue type (CT) of SSP low frequency electrical stimulation significantly decreased in plasma creatine from normal volunteer. However, the urine creatinine clearance (Ccr) was significantly increased by SSP low frequency electrical stimulation in normal volunteer. These results suggest that the SSP low frequency electrical stimulation, especially current of 1 Hz continue type, significantly regulates urine creatinine clearance and glomerular filtration rate from normal volunteer. Therefore, the SSP low frequency electrical stimulation is a good regulator through a diuretic action of hypertension.

• Physical Therapy Rehabilitation Science
• /
• v.10 no.3
• /
• pp.374-378
• /
• 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 The Korean Society of Integrative Medicine
• /
• v.7 no.2
• /
• pp.95-109
• /
• 2019

Purpose : This study was conducted to evaluate the effects of FES with abdominal muscle contraction before virtual reality training on balance and gait ability in patients of stroke patients. Methods : The subjects were 30 stroke patients who satisfied the selection criteria. They were randomly assigned to a group receiving functional electrical stimulation with a virtual reality training program (the experiment group, n=15) and placebo functional electrical stimulation with a virtual reality training program (the control group, n=15). The program consisted of three 30-min sessions per week for six weeks. The timed up and go test (TUG), the BT4, the G-WALK were used to estimate subjects' balance, gait before and after the program. For the experiment group, the functional electrical stimulation was applied to the external oblique and the rectus abdominis, For the control group, the same program and the placebo functional electrical stimulation were applied. Results : There were significant improvements in the subscales of the balance and gait ability test of those who participated in the functional electrical stimulation, while the control group showed no significant changes. Conclusion : Therefore, functional electrical stimulation with virtual reality effectively improved the balance and gait ability in patients with chronic stroke.

• Journal of the Korean Academy of Clinical Electrophysiology
• /
• v.8 no.1
• /
• pp.7-13
• /
• 2010

Purpose : This study was performed as follows in order to investigate the effect of presynaptic inhibition mechanism using the transcutaneous electrical stimulation (TES) for global synkinesis (GS) on the post-stroke hemiplegic patients. Methods : The subjects consist of 38 post stroke hemiplegic patients; experiments were performed on thirty patients excluding eight. The experiment was performed on sham group, sensory level stimulation group, and motor level stimulation group for 20 minutes a day 5 times a week for 6 weeks total. We compared the differences in GS levels and walking ability. The measurements were carried out pre, immediated, post 10th, and 20th, for a total of four measurements. Results : The GS level using sEMG found significant differences between groups at the post 10th and post 20th in dorsiflexion, and post 20th in plantarflexion (p<0.05, p<0.01). The motor level group indicated more significant differences when the number of electrical stimulations increased. TUG and 10 m walking test indicated a significant difference at immediated, post 10th, and post 20th. The motor level group showed more significant decreasing tendency than the sensory level group. Conclusion: From these results, electrical stimulation using presynaptic inhibition mechanism of transcutaneous electrical stimulation (TES) had positive effects for walking ability on inhibition of muscle tone in lower extremity. The motor level stimulation group experienced a more significant effect than the sensory level stimulation group. Therefore, the transcutaneous electrical stimulation (TES) is considered to be effective on walking ability increasing through inhibition of muscle tone in lower extremity for rehabilitation of post stroke hemiplegic patients.