• 한국의류학회지
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• 제29권7호
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• pp.918-925
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• 2005

The following are the results from the infrared body temperature image test to verify the changes in facial temperature according to call duration with a cellular phone. As for the body temperatures, it appears to be the mean value at the upper central point of phone's battery among 7 different points that are measured, and to be the highest at srernocleido-mastoid and scapular trapezius muscle triangle zone$(34.25^{\circ}C\; and\;34.05^{\circ}C\;each)$. The changes of body temperature according to the time duration shows that the body temperature rises according to the length of phone use because of the heat emitted from the battery. As for the temperature changes according to blocking materials, the one without processing appears to be higher in the mean temperature compared to the others that are processed, NSS(Nano Silver Silk) and NSG(Nano Silver Silk Gold) appear to be the lowest in the temperature to show the best blocking property. As for the temperature changes according to measuring points, it appears to be the highest at P4, P5 with all materials, and one with NSG to be the lowest at Pl, P2, P3, and one with NSS to be the lowest at P3, P4, P5, P6, which is due to the thermal conduction of Au and Ag. And the mean temperature at each point appears to be different according to the materials. Therefore, the study conducted with human participants requires a proper particle size of it which would not penetrate cellular tissues and a proper binder and binding treatment for it, to prevent the physical fatigues and the potential diseases. However, it is highly required for back-up researches to verify various aspects in applying nano silver to textile products.

• 대한인간공학회지
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• 제30권2호
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• pp.339-347
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• 2011

Objective: The purpose of this study was to evaluate of various material of pillows by using biomechanical variables such as the cervical stability, head pressure distribution, and muscle activity. Method: Eight subjects participated in the experiment. Three different materials such as polyester sponge, memory foam and the buckwheat shell used for Korean traditional pillow were tested. Electro-goniometer, six channels of electromyography(EMG), ten channels of the head pressure sensors were used to measure the biomechanical responses. Surface electrodes were attached to the right/left semispinals capitis(RSC, LSC), the right/left sternocleidomastoid(RSM, LSM), the right/left upper trapezius(RUT, LUT). The cervical stability was evaluated by the angle deviated from the standing neck position. The head pressure distribution was evaluated by the pressure per unit area recorded on the sensors and the intensity of peak pressure. Electromyography(EMG) data were analyzed by using root mean square(RMS) and mean power frequency(MPF). Results: The buckwheat shell material showed a higher stability in the cervical spine then the other pillows during spine position. In terms of head pressure distribution, the memory form indicated the lowest pressure at supine position, buckwheat shell material indicated the lowest pressure during lying down to side, and polyester cushion recorded the highest pressure at all postures. Conclusion: The buckwheat shell material has a biomechanical advantage to maintain a healthy neck angle and reduce the pressure on the head, which means the buckwheat shell is a potential material for ergonomic pillow design. The pillow with memory form showed second best biomechanical performance in this study. Application: The shape of the buckwheat shell pillow and the characteristics of materials can be used to design the pillow preventing neck pain and cervical disk problems.

• 한국전문물리치료학회지
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• 제15권4호
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• pp.34-42
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• 2008

This study aimed to examine whether McConnell taping for deltoid inhibition affects the Electromyographic (EMG) activity of shoulder girdle muscles during arm elevation. Ten young healthy men were randomly assigned to an experimental and control groups of five men each. For the experimental group, we performed taping for deltoid inhibition on the skin over anterior and posterior deltoids with non-elastic specific tape, and sham-taping with non-elastic under-tape for the control group. Surface EMG measurements were performed three times (before, during and after the tapings) at upper and lower trapezius, mid-deltoid, and serratus anterior muscles while elevating dominant aim with loading and unloading conditions. In deltoid inhibition taping group, there were significant differences in EMG activity of mid-deltoid (p<.05) and serratus anterior (p<.05) muscles during arm elevation with loading. During arm elevation without loading, the EMG activity was significantly decreased for MD in the McConnell taping group (p<.05). The findings indicate that deltoid inhibition taping can modify the activation patterns in shoulder girdle muscles as well as in deltoid muscle. in clinical setting. it may be effectively used for the management of patients with shoulder dysfunction.

• 대한물리의학회지
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• 제11권2호
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• pp.41-52
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• 2016

PURPOSE: This study was conducted to compare the levels of usage of the superficial neck muscles during head rotation in forward head posture and in multimodal postures for improvement of cervical rotation movement impairment. METHODS: To acquire electromyography (EMG) signals from the sternocleidomastoid (SCM-M), upper trapezius (UPT-M), and the splenius capitis (SPC-M) muscles, 11 subjects practiced right rotation of the head in forward head postures (FHP), upright sitting postures (USP), upright sitting postures with supported arms (SUP), standing postures with the arms leaning against the wall (WSP), and four feet postures (FFP), respectively. RESULTS: The left SCM-M was used significantly more in the FFP compared to the FHP, but not in other postures (p<0.01). The left UPT-M was used significantly more in all postures other than the FHP. The right SPC-M was used significantly more in the FFP (p<0.001) and significantly less (p<0.05) in the SUP compared to the FHP. CONCLUSION: During the rotation of the head, although the usage of the SPC-M significantly decreased in SUP compared to FHP but the usage of the SCM-M and UPT-M did not decrease significantly in other postures compared to FHP. Further research is necessary to prove the hypothesis that special postures may reduce the activity of the superficial neck muscles during head rotation.

• The Korean Journal of Pain
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• 제12권2호
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• pp.195-199
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• 1999

Background: At present, there is no reliable objective test for the diagnosis of myofascial trigger points (MFTP). We evaluated the usefulness of skin resistance point finder for the diagnosis of MFTP. Methods: 40 subjects with clinical MFTPs at the upper trapezius muscle were included in this study. Using skin resistance point finder (UNIQUE S-2010$^{(R)}$, Seik medical, Korea), we tried to find out the point of low skin resistance. At three different current level, sensitivity and specificity of this method for the diagnosis of clinically identified MFTP was evaluated. Pressure threshold for pain of low skin resistance point was measured using Pressure Threshold Meter$^{(R)}$ (Pain Diagnostics and Thermography, U.S.A.). 3 groups of point detected at different current were compared in mean pressure threshold. Results: Fixed single current of skin resistance point finder showed variable sensitivity and specificity. But, by adjusting current level, skin resistance point finder detected all of 40 clinically identified MFTPs. Although it is partially statistically significant, the mean pressure threshold of points detected at high current was high. Conclusion: Skin resistance finder can be used as objective diagnostic tool of MFTPs. There is possibility that it can be useful in evaluating treatment effect. However, more investigation is necessary.

• 대한물리치료과학회지
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• 제9권2호
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• pp.123-131
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• 2002

The purpose of this study is to compare Ultra Sound(U-S), Silver Spike Point(SSP) and Electro-Acupuncture(E-A) with each other and to objectively analyze their concrete validities and their effects on the deactivation of trigger points in patients with myofascial pain syndrome, and to provide basic necessary principles for clinical therapists. Sixty patients were randomly distributed into three groups of twenty persons each and the U-S, the SSP and the E-A were applied to each group respectively. Tree pain evaluation methods of VAS(Visual Analogue Scale), Electrical Stimulation Scale and Pressure Algometer were adopted to measure the effectiveness of each therapy. The results were as follows: The U-S and E-A groups demonstrated statistically significant decrease on the VAS. The pain thresholds by Electrical Stimulation Scale method was increased for all the groups of U-S, SSP and E-A with no statistical significance. however, Pressure Algometer method was found to increase the pain thresholds for both SSP and E-A groups with statistically significance. Statistically significant improvement was found for all the groups together after the administration of the U-S, the SSP and the E-A. From the above results, three methods of U-S, SSP and E-A are found to be effective tools for the deactivation of trigger points in patients with upper trapezius muscle of Myofascial Pain Syndrome. The E-A method was found to be the most effective among three methods.

• Journal of Acupuncture Research
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• 제29권1호
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• pp.1-8
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• 2012

Objectives : We investigate the characteristics of foot reflex zone acupoint of facial paralysis patients. Methods : In order to make a comparison between facial nerve paralysis patient group and non-facial paralysis group, we measured foot reflex zone acupoint detection in both group of 18 patients who were diagnosticated to facial nerve paralysis and 18 persons who were not. Results : 1. In comparing the means of the foot reflex zone, the measurements of facial nerve paralysis group is different significantly from non-facial paralysis group(p<0.05). 2. The measurement of detection of foot reflex zone acupoints, such as hypophysis(垂體), nose(鼻), cerebrum(大腦), neck(頸項), Trapezius muscle(僧帽筋), eye(眼) and ear(耳) of the facial nerve paralysis group is different significantly in comparison with non-facial paralysis group(p<0.05). But the measurement of detection of foot reflex zone acupoints, such as trigeminal nerve(三叉神經), cerebellum (小腦), kidney(腎), ureter(輸尿管) and urinary bladder(膀胱) of the facial nerve paralysis group is not defferent significantly in comparison with non-facial paralysis group(p>0.05). Conclusions : The results suggest that foot reflex zone can be used in the diagnosis and treatment of facial nerve paralysis.

• 한국의류학회지
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• 제32권3호
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• pp.395-407
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• 2008

As global interest in clothing spreads over the smart clothing which arouses high added-value in the apparel industry, this study is to develop a smart jacket with an electrically-vibrating device maintaining excellent appearance and comfort. The vibrating device has a massage function that could relieve muscle pain near shoulders and neck. The purposes of this research are to develop jacket pattern for men in their thirties considering body shapes and fashion trend, to develop a wearable device that is composed of motor and controller and integrate it into a jacket, and to assess the external appearance and functional satisfaction of the smart jacket through the wearing test. The results are as follows: 1. In order to develope an appropriate jacket pattern for men in their thirties, several patterns were assessed for their fitting comfort. The final pattern was completed after making alterations some parts, and showed high satisfaction as 3.6(on a five-point scale) in all categories. 2. A vibrating device was developed by connecting motor, controller, battery and switch. Developing this device, focus was maximizing the strength of motor and minimizing the heat generated from motor and controller. Snaps were placed between inner and outer cloth of jacket so that the vibrating device could be easily attachable and detachable. The motor was located around Trapezius where muscles often get stiff. A switch was designed to be used in selecting the modes of Strong, Weak, and Cross Tapping. 3. The wearing test was conducted to examine outer appearance, comfort for motion, and functionality of the smart jacket. The results of assessing outer appearance showed that the location for attaching the vibrating device was not noticeable but looked natural, and there is almost no change in outer appearance when the vibrating device operates. The result of assessing comfort of action revealed that wearer's satisfaction was high in all categories about activity, wearer's comfort, etc. The result also showed that wear's satisfaction for effects of vibrating massage, easiness in using the device, heat generation was not less than 3.5 in all categories except a category about noise.

• 척추신경추나의학회지
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• 제10권1호
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• pp.107-116
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• 2015

Objectives : The purpose of these clinical cases is to evaluate the effectiveness of Korean medical therapy on neck pain with cervical syringomyelia Methods : These are case reports on 2 patients admitted to Daejeon jaseng Hospital of Korean Medicine with neck pain and diagnosis of cervical syringomyelia by Cervical spine Magnetic Resonance Imaging, were observed during hospitalization. They were analyzed according to pain and Cervical spine Range of Motion. All patients received a combination of treatments including Acupunture, Chuna, Pharmacopunture, Herbal medication. Pain scales(Number Rating Scale, Neck Disability Index) and Cervical spine Range of Motion were used during hospitalization. Results : After 3 weeks for these patients, Cervical spine Number Rating Scales decreased from 7 to 3 and from 9 to 4 respectively. And Trapezius muscle Number Rating Scales decreased from 7 to 3 and from 2 to 1 respectively. Also Cervical spine Range of Motion improved to the normal. Conclusions : Korean medical therapy might be effective in reducing pain and improving range of motion for patients with neck pain. And we hope this study further confirmed the effectiveness of Korean medical therapy on neck pain with cervical syringomyelia.

• Safety and Health at Work
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• 제9권3호
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• pp.326-333
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• 2018

Background: Echocardiography involves strenuous postures of the upper limbs. This study explored the physical workload in the neck and upper limbs in sonographers performing echocardiography, and the extent to which the workload differs from than in other work tasks (other sonographic examinations, and nonsonographic tasks). Methods: The physical load was assessed by inclinometry, goniometry, and electromyography methods in 33 female sonographers during authentic work using three different echocardiography techniques and other work tasks. Results: Echocardiography was characterized by low velocities of the head, arms, and wrists, and a low proportion of muscular resting time in the forearms, in the transducer limb, and the computer limb. The transducer limb was more elevated in one of the techniques, but this technique also involved a higher proportion of muscular resting time of the trapezius muscle. We also found a high proportion of awkward wrist postures in the transducer wrist in all three techniques; in one due to prolonged flexion, and in the others due to prolonged extension. Other work tasks were less static, and were performed with higher upper arm and wrist velocities. Conclusion: None of the three echocardiography techniques was optimal concerning physical workload. Thus, to achieve more variation in physical load we recommend that the equipment be arranged so that the sonographer can alternate between two different techniques during the workday. We also propose alternation between echocardiography and nonsonographic tasks, in order to introduce variation in the physical workload. Clinical expertise should be used to achieve further improvements.