• 한국융합학회논문지
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• 제10권12호
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• pp.183-189
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• 2019

본 연구의 목적은 근전도 바이오피드백 장비를 사용하여 움직임 조절운동을 수행할 때 엉덩관절 근육에 미치는 영향에 대해 알아보고자 하였다. 본 연구는 유사실험설계 단일집단 검사전-검사후 설계이다. 건강한 성인 21명이 본 연구에 참여하였다. 모든 대상자는 근전도 바이오피드백 장비를 사용하여 엉덩관절의 움직임 조절 운동을 총 20분간 수행하였다. 적은무릎 구부리기 검사 수행동안 엉덩관절의 근활성도 변화를 확인하기 위해 중간볼기근, 큰볼기근, 넙다리근막긴장근, 넙다리 곧은근의 활성도를 측정하였다. 본 연구 결과에서 중재 후 큰볼기근의 유의한 변화를 확인하였다. 이러한 결과는 근전도 바이오피드백 장비를 적용한 엉덩과절 움직임 조절운동이 엉덩관절의 안쪽돌림을 조절하고 엉덩관절 가쪽돌림근을 활성화시키는 효과적 중재방법임을 확인할 수 있었고, ICT 융합기술을 접목한 재활운동이 임상에서 효과적인 중재가 될 수 있음을 보여주었다.

• 한국전문물리치료학회지
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• 제3권2호
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• pp.42-48
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• 1996

Weight bearing training on the involved leg is impotant for ambulation and activities of daily living in ambulatory hemiplegic patients. Traditionally, physical therapists have relied on exercise therapy and subjective evaluation. The goal for this study was to measure lower extremity weight distribution in standing with ten hemiplegic pations(M:8, F:2) and to determine the traing effect on symmetrical standing posture using a "Limloader". The Limloader is a machine designed for training symmetrical weight bearing posture. The results showed that the ability to keep the center of gravity within the limits for balance was improved significantly but the ability to adjust weight bearing on the involved leg was not (p<0.05). This study demostrated that hemiplegics can improved their symmetrical weight bearing ability using sensory biofeedback.

• 한국산학기술학회논문지
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• 제21권1호
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• pp.284-290
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• 2020

본 연구는 SNAGs(Sustained natural apophyseal glides)기법과 시각을 융합한 바이오피드백 훈련이 목 기능 장애 환자에게 고유수용성 감각과 목의 기능장애에 미치는 영향을 알아보고자 하였다. 목 기능장애 환자 31명을 대상으로 무작위로 SNAGs기법과 바이오피드백 훈련으로 할당하였으며, 관절위치 감각과 목 기능장애 평가를 중재 전-후 실시하였다. 16명의 SNAGs 중재그룹은 멀리건 벨트를 이용하여 굽힘, 폄, 회전을 실시하였고, 15명의 바이오피드백군은 시각적 피드백을 통한 깊은목 굽힘근 훈련을 실시하였다. 두 집단은 동일한 시간, 동일한 조건에서 20분 동안 주당 2회를 4주간 실시하였다. 바이오피드백 훈련 집단이 SNAGs 집단보다 고유수용성 감각에서 좌, 우 회전 모두 유의한 향상을 보였으며(p< 0.05), 목 기능장애는 SNAGs기법을 이용한 집단이 바이오피드백 훈련 집단보다 유의한 효과를 보였다(p<0.05). 따라서 SNAGs기법은 목의 기능제한 해결에 효과적이며, 바이오피드백 훈련은 고유수용성 감각 향상에 긍정적인 중재 방법이 될 것이다. 향후 목 통증 환자에 대한 연구를 진행시, 질환의 특성에 따라 중재방법을 선택 할 수 있을 것이다.

• The Journal of Korean Physical Therapy
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• 제27권5호
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• pp.287-291
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• 2015

Purpose: This study was conducted to determine the influence of inspiratory muscle exercise using visual biofeedback and inspiratory muscle exercise with diaphragm breathing retraining in stroke patients in regard to inspiratory muscle activity and respiratory function and to provide fundamental information on intervention for improvement of pulmonary function in stroke patients. Methods: The current study measured and analyzed inspiratory muscle activity and pulmonary function of 15 randomly selected subjects in a Biofeedback inspiratory muscle exercise (BIE) group that uses visual feedback and 15 subjects in the Diaphragm breathing exercise (DBE) group that uses breathing retraining before and after intervention. Intervention was performed for 30 minutes, 5 times a week, for 8 weeks. Subjects were measured for muscle activity of upper trapezius muscle and lattisimus dorsi muscle using a surface electromyography system and maximum inspiratory pressure was measured using a respiratory measurement device. For homogeneity test of subjects, independent t-test was performed and ANCOVA was performed for comparison of inspiratory muscle activity and pulmonary function between groups. Results: In the study results, the BIE group showed more significant muscle activity than the DBE group in upper trapezius muscle and lattisimus dorsi muscle (p<0.001). In addition, the BIE group showed more pressure than the DBE group in maximum inspiratory pressure (p<0.001). Conclusion: Based on the current study, performing biofeedback respiration exercise simultaneously with breathing retraining in stroke patients can provide more efficient respiratory physical therapy. In addition, it is considered that consistent study on the effectiveness is necessary to further improve clinical availability.

• 한국전문물리치료학회지
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• 제24권2호
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• pp.66-75
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• 2017

Background: After a stroke, the control of the trunk muscle may be severely impaired. Due to the importance of trunk control in complex daily postures, the ability to adopt a correct sitting posture is considered a determinant of the recovery of independent function after a stroke. Objects: The purposes of this study were to compare differences in buttock pressure between the left and right sides of hemiplegic patients and differences in their pelvic tilting angles (sagittal and coronal planes) after sitting training with visual biofeedback (VBF) in real time. Methods: Twenty-two individuals with unilateral strokes (11 left-side and 11 right-side hemiplegic stroke patients) participated in this study. Buttock pressure was measured using a pressure mat, and pelvic angles were measured using a palpation meter. Results: The asymmetry of pressure between the right and left (first and third chamber) sides was significantly decreased after the VBF training. The measurements obtained using the palpation meter revealed a significant decrease in the pelvic angles pre- versus post-intervention. Conclusion: VBF training may be distribute a patient's buttock pressure equally while in a sitting posture and increase the length of time a stroke patient can maintain a symmetrical sitting posture. It can also improve pelvic control while sitting in a neutral position.

• Journal of Yeungnam Medical Science
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• 제40권1호
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• pp.91-95
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• 2023

Psychogenic dysphagia is a deglutition disorder characterized by a fear of swallowing, with no structural or functional causes. This report presents the case of a young male patient who had severe malnutrition due to psychogenic dysphagia and was provided visual biofeedback using fiberoptic endoscopic evaluation of swallowing (FEES). A healthy 25-year-old man presented to our clinic with a complaint of throat discomfort when swallowing that had started 6 months prior. As the symptoms worsened, he became fearful of food spreading to his lungs after swallowing and the development of respiratory difficulties. His food intake gradually decreased, resulting in a weight loss of 20 kg within 2 months. Evaluation of organic and other functional causes of dysphagia was performed, but no abnormalities were detected. The sensation of a lump in his throat, fear of swallowing, and anxiety were transformed into somatic symptoms. The patient was diagnosed with psychogenic dysphagia. After visual biofeedback by a physician who performed FEES, the patient resumed eating normally and increased his food intake. If routine tests do not reveal structural or functional causes of dysphagia, assessment of a psychogenic swallowing disorder should be considered. FEES can help in the diagnosis and management of psychogenic dysphagia.

• 한국콘텐츠학회논문지
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• 제11권11호
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• pp.194-203
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• 2011

불완전 척수손상환자에게 시각적 바이오피드백 시뮬레이션훈련의 적용을 통해 균형에 미치는 영향을 알아보고자 하였다. 불완전 척수손상환자 중 기능향상을 기대할 수 있는 ASIA장애척도 C, D환자 15명을 실험군 7명, 대조군 8명으로 무작위 분류하였다. 균형진단과 바이오피드백 훈련이 가능한 Tetrax Interactive Balance System을 이용하여 시각적 바이오피드백 시뮬레이션훈련을 6주간 일주에 3회씩, 1회에 15분간 총 18회를 실시하였다. 분석방법은 집단 내 전과 후의 차이는 대응표본 t검정을 시행하였고, 두집단 사이 전후 변화량의 차이는 독립표본 t검정을 사용하였다. 실험군은 자세 흔들림을 측정하는 안정성지수와 낙상의 위험정도를 나타내는 낙상지수 및 각각의 체중 변화를 감지하는 체중분포도(A, C, D, LEFT, HEEL)와 체중분포지수에서 유의하게 향상되었고, 자세조절능력을 나타내는 동조화에서는 좌우뒤꿈치(AC)간과 좌우앞꿈치(BD)간을 제외하고 모두 유의하게 향상되었다(p<.05). 대조군은 체중분포도(A, C, LEFT)에서만 유의하게 향상되었다(p<.05). 실험군과 대조군간의 변화량에서 체중분포도(A, B, C, HEEL)와 안정성지수 및 낙상지수, 그리고 동조화 AD에서만 유의한 향상을 보였다(p<.05). 이 연구의 결과로 볼 때 불완전 척수손상환자에게 부가적으로 균형증진을 위한 시각적 바이오피드백 시뮬레이션훈련은 균형능력향상에 있어서 유용할 것이며 추후 더 많은 연구들이 시행되어야 할 것이다.

• 한국의학물리학회지:의학물리
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• 제24권3호
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• pp.135-139
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• 2013

호흡 연동 방사선 치료 시 사용되는 음성 유도 및 음성-영상 유도의 두 가지 호흡생체자기제어 방식이 호흡 재현성 및 선량에 미치는 영향을 평가하였다. 본 연구에서는 Medical College of Virginia (MCV)에서 획득한 19명의 폐암 환자에 대한 호흡 데이터를 이용하였다. 호흡 데이터는 총 5주간 1주 간격으로 자유 호흡, 음성 유도, 음성-영상 유도의 세 가지 형태로 획득하였으며 선량 평가는 MATLAB을 이용하였다. 그 결과, 자유 호흡의 경우에는 반복되는 치료에서 호흡재현성이 감소하여 CTV 선량이 약 30.0% 감소하는 것을 알 수 있었으며, 음성-영상 유도 방식을 이용할 경우 5주 후 CTV 선량이 20.0% 개선됨을 알 수 있었다. 이는 환자가 영상을 통하여 자가호흡조절 능력이 향상되기 때문으로 판단된다. 또한 음성 유도만 사용할 경우에도 호흡재현성을 유지하는 데는 효과적임을 확인하였다.

• Physical Therapy Rehabilitation Science
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• 제12권3호
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• pp.320-326
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• 2023

Objective: The purpose of this study is to investigate the impact of visual biofeedback methods utilizing pressure sensors on the static balance of stroke patients. Design: Randomized crossover study. Methods: A total of 27 patients with hemiparesis participated in this study. The following three feedback conditions were considered: condition 1 (Knowledge of performance feedback), condition 2 (Knowledge of result feedback), and condition 3 (None feedback). A force plate was used to measure static balance. The total sway length, average sway velocity, x-axis excursion, and y-axis excursion of the center of pressure were measured. One-way repeated-measures analysis of variance was employed for comparisons of variables between each condition. The statistical significance level was set at α = 0.05 for all analyses. Results: There was a significant difference in the static balance results between each feedback condition (p<0.05). In the post-hoc results, it was confirmed that the static balance was significant in the order of knowledge of performance feedback, knowledge of result feedback, and none feedback. Conclusions: When comparing the three conditions, it was observed that knowledge of performance feedback showed the most improved effect on static balance ability. As further research progresses, that this approach could be used as an effective intervention method in clinical settings.

• Journal of Yeungnam Medical Science
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• 제38권1호
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• pp.39-46
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• 2021

Background: To determine the benefit of pelvic floor muscle exercise (PFME) with visual biofeedback on promoting patient recovery from incontinence, we investigated variables associated with the early restoration of continence for patients who underwent robot-assisted radical prostatectomy (RARP). Methods: Of the 83 patients enrolled, 41 consecutive patients completed PFME (the exercise group), and the other 42 consecutive patients just before the PFME program commenced (the control group). The primary outcome was whether PFME engagement was associated with zero pad continence restoration within 3 months of surgery. Results: Continence restoration percentages (defined as zero pads used per day) at 1, 3, and 6 months after surgery were 49.4%, 77.1%, and 94.0%, respectively. The exercise group achieved significantly higher recovery rates at 1 month (p=0.037), 3 months (p<0.001), and 6 months (p=023). Cox regression analysis demonstrated that a lower Gleason score (<8; hazard ratio [HR], 2.167), lower prostate specific antigen (<20 ng/dL; HR, 2.909), and engagement in PFME (HR, 3.731) were independent predictors of early recovery from postprostatectomy incontinence. Stratification by age showed that those younger than 65 years did not benefit significantly from exercise (log-rank test, p=0.08), but that their elderly counterparts, aged 65-70 years (p=0.007) and >70 years old (p=0.002) benefited significantly. Conclusion: This study suggests that postoperative engagement in PFME with biofeedback speeds up the recovery of continence in elderly patients (≥65 years old) that undergo RARP.