• Title/Summary/Keyword: EMG (electromyograph)

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Development of Signal Process Software for Electromyograph(EMG) (근전기록장치의 신호처리 소프트웨어 개발)

  • Lee, Sangsik;Park, Wonyup;Lee, Choongho
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.2 no.3
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    • pp.17-22
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    • 2009
  • The objective of this study was to develop a signal process software for a Electromyograph(EMG). And this paper was developed to general signal process software for a Electromyograph using biomechanics. It was used the clinic, rehabilitation, ergonomics and sports. It was composed to the module type for the monitoring frequency analysis, the zero crossing and comparison analysis etc. It's UI(User Interface) made up the continuous monitoring, the reports and the user-friendly-approach. This developed Electromyography will be applied to biomedical engineering system.

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Measurement System of Abdominal Obesity based on Analysis of Abdominal Electromyogram (복부 근전도 분석을 통한 복부 비만 측정 시스템)

  • Kwon, J.W.;Choi, H.H.;Lee, D.H.;Yoon, D.E.;Hong, J.E.
    • Journal of rehabilitation welfare engineering & assistive technology
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    • v.1 no.1
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    • pp.45-52
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    • 2007
  • Recently, overweight that is the major cause of diseases is troubled about the serious social problems. To solve this problem, the need of measurement system for the overweight management has been increased. This paper is the study on measurement system. This system analyzes EMG (electromyograph) of the abdomen. Then, checks one's state of health and offers the right medical services wherever and whenever. To analyze EMG of the abdomen, this paper proposes the algorithms that are energy detection, feature detection, classification and recognition, etc. Measurement system based on the analysis algorithms of EMG appraises overweight and physical strength of the abdomen. It also provides the right estimation for one's state of health.

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The Effect of Compression Wear for the Sport Performance and Muscle Function (컴프레션웨어(Compression Wear)의 운동성능 및 근기능에 미치는 영향)

  • Koo, Young-Seok
    • Textile Coloration and Finishing
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    • v.23 no.1
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    • pp.60-68
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    • 2011
  • The effect of compression wear for sport performance and muscle function was investigated based on the physiological test and electromyograph(EMG). The EMG test was used to study muscle activity after fitting the compression wear during exercise. It showed slight difference between men and women testee groups in the results of anaerobic, aerobic, fatigue, and EMG test due to muscle content in the body. In addition, the exercise performance was increased to some extent even the muscle activity was decreased. It is estimated that the compression effect to muscle by the compression wear decreased the muscle vibration and improved blood circulation which helped the entire sport performance. However, it is necessary to study the effect of compression wear in long-term wearing in the future study.

Development of the measurement system of abdominal obesity based on analysis of abdominal electromyogram (복부 근전도 분석을 통한 복부 비만 측정시스템 개발)

  • Kim, Jung-Ho;Kwon, Jang-Woo
    • Journal of Sensor Science and Technology
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    • v.16 no.5
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    • pp.369-376
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    • 2007
  • Recently, obesity that is increasingly becoming a major cause of various diseases is emerging as a serious social problem. In order to solve this problem, the necessity of measurement systems for overweight management has increased. This paper is a study on the measurement system for obesity management that can offer right medical services everywhere and allways by analyzing EMG (electromyograph) of the abdomen and then checking one's health state. For analyzing EMG signals of the abdomen, algorithms for energy detection, signal feature extraction, classification and recognition are presented. This paper proposes a system that provides an appropriate an estimation on the health status by evaluating the obesity degree and muscular strength of the abdomen through the system applying these algorithms.

Effect of Pelvic Tilting and the Back-belt on Electromyographic Activity of Erector Spinae During Lifting (골반경사 방향과 허리벨트 착용이 물건 들고 일어서기 시 척추기립근의 활동전위에 미치는 영향)

  • Park, Hyung-Ki;Kim, Tack-Hoon
    • The Journal of the Korea Contents Association
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    • v.9 no.3
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    • pp.296-304
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    • 2009
  • The purpose of this study were to examine the effect of two different pelvic alignments and the back belt on electromyographic(EMG) activity of the erector spinae during lifting. The results were as follows: 1) EMG activity of erector spinae was greater when the pelvis was tilted anteriorly than when the pelvis was tilted posteriorly during lifting. 2) EMG activity of erector spinae was greater when the back belt than when without the back belt during lifting. These results suggest that the greater EMG activity of erector spinae with an anterior pelvic tilt position and with back belt during lifting may ensure optimal muscular support for the spine while handling loads.

MEASUREMENT OF THE EXCESSIVE STIMULUS TIME AFTER THE SENSORY THRESHOLD LEVEL DURING ELECTRIC PULP TESTING (전기 치수 검사 시 역치 자극 이후 과용(過用) 자극 시간의 측정)

  • Nam, Ki-Chang;Ahn, Seon-Hui;Kim, Soo-Chan;Kim, Deok-Won;Lee, Seung-Jong
    • Restorative Dentistry and Endodontics
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    • v.29 no.3
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    • pp.226-232
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    • 2004
  • Use of electric pulp testing elicits painful response in vital teeth. In this study, we examined the excessive time from pain feeling to stimulation disconnection in clinical situation. D626D (Parkell Inc., USA.) scan type electric pulp tester was used in total of 23 young healthy individuals. Each of the right central incisors and first premolars were used as testing teeth. Stimulation disconnection was achieved by EMG in anterior belly of digastric muscle, finger span, and voice and the excessive stimulation time over the sensory thresh-old was recorded. As a result, we found that the short responses before the stimulation disconnection appeared following order:EMG, finger span, and voice. The EMG disconnection is suggested to be used to reduce the excessive stimulus time in electric pulp testing.

A Biomechanical Analysis According to Passage of Rehabilitation Training Program of ACL Patients (전방십자인대 수술자의 재활트레이닝 경과에 따른 운동역학적 분석)

  • Jin, Young-Wan
    • Korean Journal of Applied Biomechanics
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    • v.23 no.3
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    • pp.235-243
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    • 2013
  • The purpose of this study was to analyse scientific according to period of rehabilitation training of ACL patients. ACL patients seven subjects participated in this study. Gait (1.58 m/sec) analysis was performed by using a 3-D Cinematography, a Zebris system and a electromyograph system. The data were analyzed by paired t-test. The joint angles were recorded from the ankle, knee, hip joints. Peak max dorsi-flexion and peak max plantar-flexion identified significant differences (p<0.05). Another angles were no significant difference. Vertical force (Fz) and max pressure variables improved 6 month RTP better than 3 month RTP. EMG were collected from 4 muscles (rectus femoris, biceps femoris, gastrocnemius, tibialis anterior) with surface electrides in gait system. EMG signals were rectified and smoothed data. EMG signas were no significant difference but they also improved 6 month RTP better than 3 month RTP. More research is necessary to determine exactly what constitutes optimal rehabilitation training period for ACL patients.

Autonomous Mobile Robot Control using the Wearable Devices Based on EMG Signal for detecting fire (EMG 신호 기반의 웨어러블 기기를 통한 화재감지 자율 주행 로봇 제어)

  • Kim, Jin-Woo;Lee, Woo-Young;Yu, Je-Hun;Sim, Kwee-Bo
    • Journal of the Korean Institute of Intelligent Systems
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    • v.26 no.3
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    • pp.176-181
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    • 2016
  • In this paper, the autonomous mobile robot control system for detecting fire was proposed using the wearable device based on EMG(Electromyogram) signal. Myo armband is used for detecting the user's EMG signal. The gesture was classified after sending the data of EMG signal to a computer using Bluetooth communication. Then the robot named 'uBrain' was implemented to move by received data from Bluetooth communication in our experiment. 'Move front', 'Turn right', 'Turn left', and 'Stop' are controllable commands for the robot. And if the robot cannot receive the Bluetooth signal from a user or if a user wants to change manual mode to autonomous mode, the robot was implemented to be in the autonomous mode. The robot flashes the LED when IR sensor detects the fire during moving.

The Effects of Psychological Stress on Neck Muscles (정신적 스트레스가 경항부 근육에 미치는 영향)

  • Kwon, Ho-Young;Kim, Jeong-Hwan
    • Journal of Korean Medicine Rehabilitation
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    • v.20 no.1
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    • pp.119-132
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    • 2010
  • Objectives : The purpose of this study is to compare interrelations between stress and muscles of neck through stress response inventory(SRI), 7 zone diagnostic system and surface electromyography(sEMG). Methods : This study was carried out with the data from SRI, 7 zone diagnostic system and sEMG. First subjects were divided into two group according to the SRI points. subjects in group A had points of SRI in which lower than 30 points. Subjects in group B had points of SRI in which higher than 30 points. And subjects were divided into nonstress group(Group C) and stress grouop(Group D) according to the result of 7 zone diagnostic system. Then we investigated how to differentiate the muscle contraction, fatigue, recovery and asymmetry ratio on sEMG for each groups. Results : In this study, the muscle contraction of both upper trapezius muscle and left sternocleidomastoid muscle and left scalene muscle in stress group were higher than nonstress group significantly. And the muscle recovery of left sternocleidomastoid muscle and left scalene muscle in stress group were higher than nonstress group significantly. Conclusions : This results show that the stress was associated with muscle condition.