• Title/Summary/Keyword: biofeedback

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A Study on the Changes of Occlusal Contacts after Electromyographic Biofeedback Therapy (E.M.G. biofeedback therapy에 의한 occlusal contact의 변화에 관한 련구)

  • 김영주;이승우;김영구
    • Journal of Oral Medicine and Pain
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    • v.10 no.1
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    • pp.33-39
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    • 1985
  • Changes of occlusal contacts after E.M.G. biofeedback therapy with D.D.S. (Self control system, EMG 220, Sandiago California) was investigated in 20 SNUH students and residents with normal occlusion. Treatment time was 30 minutes on every subject. Occlusal contacts of before biofeedback therapy were taken at 4: 00 P.M. and that of after biofeedback therapy were taken at 4:40 P.M. Author compared the occlusal contacts before biofeedback therapy with that of after biofeedback therapy. The obtained results were as follow : 1. The number of occlusal contacts was 23.9, before biofeedback therapy and, 26.3, after biofeedback therapy. 2. The percentage of accentuated contact to diffuse contact was 78.5%, before treatment and 38.8% after treatment. 3. 6 heaviest contacts were changed 4.3 teeth per one subject after biofeedback therapy.

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Selective Muscle Activation With Visual Electromyographic Biofeedback During Scapular Posterior Tilt Exercise in Subjects With Round-Shoulder Posture

  • Son, Jae-ik;Lim, One-bin;Han, Hae-rim;Cynn, Heon-seock;Yi, Chung-hwi
    • Physical Therapy Korea
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    • v.22 no.4
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    • pp.17-26
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    • 2015
  • The purpose of this study was to investigate the effects of visual electromyography (EMG) biofeedback on the EMG activity of the lower trapezius (LT), serratus anterior (SA), and upper trapezius (UT) muscles, the LT/UT and SA/UT EMG activity ratios, and the scapular upward rotation angle during scapular posterior tilting exercise (SPTE). Twenty-four subjects with round-shoulder posture participated in this study. The EMG activities of the LT, SA, and UT were collected during SPTE both without and with visual EMG biofeedback. The scapular upward rotation angle was measured at the baseline, after SPTE without visual EMG biofeedback, and after SPTE with visual EMG biofeedback. The LT, SA, and UT EMG activities, and the LT/UT and SA/UT EMG activity ratios were analyzed by paired t-test. The scapular upward rotation angle was statistically analyzed using one-way repeated analysis of variance. If a significant difference was found, a Bonferroni correction was performed (p=.05/3=.017). The EMG activities of LT and SA significantly increased, and the EMG activity of UT significantly decreased during SPTE with visual EMG biofeedback compared to SPTE without visual EMG biofeedback (p<.05). In addition, the LT/UT and SA/UT EMG activity ratios significantly increased during SPTE with visual EMG biofeedback compared to SPTE without visual EMG biofeedback (p<.05). Significant increases were found in the scapular upward rotation angle after SPTE without and with visual EMG biofeedback compared to baseline (p<.017), and no significant differences were observed in the scapular upward rotation angle between SPTE without and with visual EMG biofeedback. In conclusion, SPTE using visual EMG biofeedback may be an effective method for increasing LT and SA activities while reducing UT activity.

Psychophysiological Self Regulation -Focussed on Biofeedback- (정신생리적 자기조절 -바이오 피드백을 중심으로-)

  • Hwang, Ik-Keun
    • Sleep Medicine and Psychophysiology
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    • v.1 no.1
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    • pp.20-28
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    • 1994
  • The field of applied biofeedback as one of psychophysiological self regulation techniques began in the united states in 1950s. Biofeedback may be described as information about the effects of a response that is given to the person making that response in order to improve ways of controlling that response. This article reviewed various definitions of biofeedback, learning models, mediating processes, instrumentations to be considered during biofeedback practice, treatment procedures and clinical applications.

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The Effect of Breathing Biofeedback Training in the Stress of Nursing Students in Clinical Practice. (호흡바이오피드백 훈련이 간호대학생의 임상실습시 스트레스에 미치는 효과)

  • Kwon Young-Sook;Kim Tae-Hee
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.6 no.2
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    • pp.169-184
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    • 1999
  • The purpose of this study was to identify the effects of breathing biofeedback training on the stress of nursing students in clinical practice. The research design was a nonequivalent control group pretest-posttest design. The subjects of this study were 39 nursing students from the College of Nursing of K University. The study was conducted from July 20 to September 3, 1998. The subjects were assigned to one of two groups : the experimental group (19 students), and the control group (20 students). The breathing biofeedback training was performed 12 times with the experimental group. The level of psychological stress was measured using the State Anxiety Inventory, Profile of Mood State, and Visual Analogue Stress Scale. The level of physiological stress was measured using pulse rate and blood pressure. The data were analyzed using descriptive statistics, $x^2-test$, t-test, and repeated measures of ANOVA. The results of study are as follows : 1) State anxiety scores were not significantly different between the experimental group and the control group after the biofeedback training. 2) Profile of mood state scores were not significantly different between the experimental group and the control group after the biofeedback training. 3) Visual Analogue Stress Scale scores were significantly different between the experimental group and the control group after the biofeedback training(F=11.68, p=0.002). 4) Pulse rates were not significantly different between the experimental group and the control group after the biofeedback training. 5) Systolic blood pressures were significantly different between the experimental group and the control group after the biofeedback training(F=5.44, p=0.025). 6) Diastolic blood pressures were not significantly different between the experimental group and the control group after the biofeedback training. On the basis of the above findings, the following recommendations for further study are made ; 1) Identification of the effects of breathing biofeedback training at times of high stress during clinical practice. 2) Identification fo the effects of stress reduction according to the frequency of the breathing biofeedback training.

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Effect of the Short foot Exercise Using an Electromyography Biofeedback on Medial Longitudinal Arch During Static Standing Position (근전도 바이오피드백을 이용한 숏 풋 운동이 정적으로 선 자세 동안 발의 안쪽 세로활 유지에 미치는 영향)

  • Cha, Sang-min;Kang, Min-hyeok;Moon, Dong-chul;Oh, Jae-seop
    • Physical Therapy Korea
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    • v.24 no.1
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    • pp.9-18
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    • 2017
  • Background: Short foot exercise (SFex) is often prescribed and performed in the sport and rehabilitation fields to strengthen intrinsic foot muscles. However, SFex is difficult to perform because of lack of feedback methods. Objects: The aim of this study was to compare the effects of SFex with and without electromyography (EMG) biofeedback on the medial longitudinal arch (MLA) of healthy individuals who maintained a static standing position. Methods: All participants (14 males and 12 females) were randomly divided into two groups (biofeedback and non-biofeedback groups). The EMG activity of the abductor hallucis (AbdH) and tibialis anterior (TA) and the MLA angle on the dominant leg side were measured with the participant in the standing position in the pre- and post-intervention conditions. The intervention session consisted of 15 minutes of SFex with (biofeedback group) or without (non-biofeedback group) EMG biofeedback. The groups were compared using two-way repeated measures analysis of variance. Results: The post-intervention activities of the AbdH muscle (p<.05) and the AbdH/TA ratio (p<.05) were significantly greater in the biofeedback group than in the non-biofeedback group. The activity of the TA (p<.05) and the MLA angle (p<.05) in the biofeedback group were significantly lower in the post-intervention condition than in the pre-intervention condition. Conclusion: The present findings demonstrate that the combination of SFex and EMG biofeedback can effectively facilitate the muscle activity of the AbdH and strengthen the medial longitudinal arch.

The Effect of Progressive Muscle Relaxation using Biofeedback on Stress Response and Natural Killer Cell in first Clinical Practice of Nursing Students (바이오휘드백을 이용한 점진적 근육이완훈련이 스트레스반응과 면역반응에 미치는 효과)

  • Kim Keum-Soon
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.7 no.1
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    • pp.109-121
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    • 2000
  • Increasingly nursing science is embracing the concepts and methodology derived from psycho-neuroimmunology. It has been previously shown that stress increases and immune function declines in students undergoing examinations. To date, however, no many studies have been reported on stress levels, immune function and interventions in Korean students undergoing their first clinical nursing rotation. It was proposed that nursing students during their first clinical rotation experience increase in stress because of the novelty of the situation and their lack of clinical knowledge. It was also hypothesized that biofeedback and progressive relaxation, methods of self-regulation of involuntary autonomic nervous system responses, would reduce the stress response. The purpose of this study is to test the effectiveness of progressive muscle laxation using biofeedback The effectiveness of the experimental methods was tested by measuring the degree of symptoms of stress (SOS) and the values of ephinephrine, pulse rate, blood pressure and natural killer cells. The subjects of this study were thirty nursing students divided into two groups: experimental group was progressive muscle relaxation group using biofeedback and control group. This study was conducted for 8 weeks of clinical practice. Biofeedback training was done by software developed by J&J company (1-410 form for progressive muscle training). Progressive muscle relaxation training according to Jacobson's Theory was done by messaged word from biofeedback. The data was analyzed using Chronbach' ${\alpha}$ and t-test of the SPSS program and the significance level of statistics was 5%. The results of the study were : 1) The progressive muscle relaxation training using biofeedback was effective for the reduction of symptoms of stress(t=-4.248, p<.001) under clinical practice stress conditions. 2) The progressive muscle relaxation training using biofeedback was not effective for the values of epinephrine(t=-1.294, p=.206). 3) The progressive muscle relaxation training using biofeedback was effective for the reduction of systolic blood pressure (t=-2.757, p=.01). 4) The progressive muscle relaxation training using biofeedback was effective for the reduction of diastolic blood pressure (p=-2.032, 0=.05). 5) The progressive muscle relaxation training using biofeedback was not effective for the reduction of pulse rate(t=-15, p=.988). 6) The progressive muscle relaxation training using biofeedback was effective for the maintenance of natural killer cells (t=2.381, p=02). The first clinical rotation for student nurses is a stressful experience as seen by the rise in the SOS in the control group. Biofeedback using progressive muscle relaxation were effective in preventing the rise of symptoms of stress and the blood pressure means when comparing the pre to post clinical experience, The mean natural killer cell count was depressed in the control group but not significantly different in the experimental groups, It is proposed here that stress via the hypothalamic - pituitary - adrenal axis suppressed the NK cell count whereas the relaxation methods prevented the rise in stress and the resulting immune depression. We recommend relaxation techniques using biofeedback as a health promotion technique to reduce psychological stress. In summary. the progressive muscle relaxation training using biofeedback was effective for the reduction of symptoms of stress under clinical practice stress conditions.

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Physiological Predictors of Treatment Response to Biofeedback in Patients With Panic Disorder

  • Seongje Cho;In-Young Yoon;Ji Soo Kim;Minji Lee;Hye Youn Park
    • Korean Journal of Psychosomatic Medicine
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    • v.31 no.1
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    • pp.19-24
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    • 2023
  • Objectives : Biofeedback is a useful non-pharmacological treatment for panic disorder (PD), but no studies have identified physiological markers related to the treatment response. This study investigated predictors of the treatment response for biofeedback in patients with PD. Methods : A retrospective study based on the electronic medical records of 372 adult patients with PD was performed. Patients received biofeedback treatment at least once, and physiological markers including heart rate, heart rate variability, respiratory rate, skin conductance, skin temperature, and electromyography were collected before the treatment began. The patients were classified as responders or non-responders based on the change in Clinical Global Impression-Severity (CGI-S) score. Results : The response rate to biofeedback treatment was 30.4%. Multivariable logistic regression analysis revealed that a higher CGI-S score at baseline and fewer benzodiazepine prescriptions were associated with a better response to biofeedback treatment. According to subgroup analyses, the baseline CGI-S score, dose of benzodiazepines, and skin conductance are candidate predictors of the response to biofeedback treatment in men, while only baseline disease severity was associated with the treatment response in women. Conclusions : The present results suggest that skin conductance may be target marker and predictor for biofeedback in male patients with PD.

The Comparison of the Effectiveness of Pelvic Floor Muscle Exercise and Biofeedback Treatment for Stress Incontinence in Korean Women (한국여성의 복압성요실금에 대한 골반저근육훈련운동과 바이오피드백요법의 효과 비교)

  • 최영희;성명숙;홍재엽
    • Journal of Korean Academy of Nursing
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    • v.29 no.1
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    • pp.34-47
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    • 1999
  • This study evaluated the Comparison of the Effectiveness of Pelvic Floor Muscle exercise and Biofeedback treatment for Genuine Stress Incontinence I assigned 60 participants to 2 groups : 30 to the pelvic floor muscle exercise group and 30 to the biofeedback group. Treatment protocol lasted for 6 weeks. Peak pressure, and duration time of pelvic muscle contraction were evaluated by a perineometer. Lower urinary symptoms, sexual matter and life style scores were achieved by using Jackson's scale. The treatment efficacy of the pelvic floor muscle exercise is compared with the biofeedback group and the main results of the comparison are as follows : 1. Pelvic muscle contraction 1) The peak pressure in the biofeedback group was significantly increased(P=0.000). 2. The frequency and quantity of incontinence 1) The frequency of incontinence in the biofeedback group was significantly decreased(P=0.000). 2) The quantity of incontinence in the biofeedback group was significantly decreased(P=0.000). 3. The lower urinary symptoms Daily frequency(P=0.000), nocturia(P=0.000), urgency(P=0.000), bladder pain(P=0.000), unexplained incontinence(P=0.048), wearing protection(P=0.022), changing outer clothing(P=0.005), hesitancy(P=0.008), intermittent stream(P=0.000), abnormal strength of stream(P=0.004), retention(P=0.000), incomplete emptying(P=0.000), and inability to stop mid stream(P=0.006) of the lower urinary symptoms in the biofeedbatk group were significantly decreased. 4. The sexual matters The dry vagina (P=0.004) and pain during sexual Intercourse (P=0.002) in the biofeedback group was significantly decreased. 5. The life style The fluid intake restriction(P=0.007), affected daily task(P=0.003), avoidance of places & situation(P=0.003), interference in Physical activity (P=0.002), interference in relationship with other people(P=0.01), and feeling about the rest of life with urinary symptom(P=0.000) in the biofeedback group were significantly decreased. In conclusion, the biofeedback treatment was more effective than the pelvic floor muscle exercise in genuine stress incontinence.

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An Essay on the Introduction of Biofeedback System into Korea : Based on the Experience at the Seoul National University Hospital (바이오피드백의 국내 도입에 관한 소고 : 서울대학교병원의 경험을 중심으로)

  • Jeong, Do-Un
    • Korean Journal of Psychosomatic Medicine
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    • v.14 no.1
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    • pp.5-7
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    • 2006
  • The author presents the history of introduction of biofeedback system into Korea, depending on his personal experience at the Seoul National University Hospital. He, as the witness of biofeedback applied to clinical psychiatry and research in Korea, maintains that biofeedback should receive much more attention filled with enthusiasm, particularly because of the rapid development of medical engineering backed up by the unimaginable progress of computer- and neuro-science.

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Effects of Electrical Stimulation Biofeedback on Motor Learning of Quadriceps Isometric Exercise of Total Knee Replacement (전기 자극을 이용한 피드백의 형태가 무릎성형 수술 환자의 넙다리 네갈래근 등척성 운동 학습에 미치는 영향)

  • Park, Eun-Young;Kwak, Chang-Hwa;Joung, Gyeong-Soo
    • Physical Therapy Korea
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    • v.7 no.3
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    • pp.81-89
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    • 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.

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