• Title/Summary/Keyword: post-stroke rehabilitation

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Implementation of Gait Analysis System Based on Inertial Sensors (관성센서 기반 보행 분석 시스템 구현)

  • Cho, J.S.;Kang, S.I.;Lee, K.H.;Jang, S.H.;Kim, I.Y.;Lee, J.S.
    • Journal of rehabilitation welfare engineering & assistive technology
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    • v.9 no.2
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    • pp.137-144
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    • 2015
  • In this paper, we present an inertial sensor-based gait analysis system to measure and analyze lower-limb movements. We developed an integral AHRS(Attitude Heading Reference System) using a combination of rate gyroscope, accelerometer and magnetometer sensor signals. Several AHRS modules mounted on segments of the patient's body provide the quaternions representing the patient segments's orientation in space. And a method is also proposed for calculating three-dimensional inter-segment joint angle which is an important bio-mechanical measure for a variety of applications related to rehabilitation. To evaluate the performance of our AHRS module, the Vicon motion capture system, which offers millimeter resolution of 3D spatial displacements and orientations, is used as a reference. The evaluation resulted in a RMSE(Root Mean Square Error) of 1.08 and 1.72 degree in yaw and pitch angle. In order to evaluate the performance of our the gait analysis system, we compared the joint angle for the hip, knee and ankle with those provided by Vicon system. The result shows that our system will provide an in-depth insight into the effectiveness, appropriate level of care, and feedback of the rehabilitation process by performing real-time limb or gait analysis during the post-stroke recovery.

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The Effects of Auditory Stimulus Using Music on Unilateral Neglect in Patients With Stroke: A single-subject design (음악을 통한 청각자극이 만성 뇌졸중 환자의 편측무시에 미치는 영향: 단일대상연구)

  • Park, Jin-Hyuck;Park, Ji-Hyuk;Park, Hae-Yean
    • Therapeutic Science for Rehabilitation
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    • v.5 no.1
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    • pp.33-42
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    • 2016
  • Objective : The purpose of this study was to verify the effects of auditory stimulus using music on unilateral neglect in patients with stroke. Methods : This study used a single subject (ABA) design. The subject who showed unilateral neglect caused by stroke received auditory stimulus using music for 60 minutes per sessions. A total of 20 sessions were conducted. The unilateral neglect was measured by the Star cancellation test and Line bisection test during each session, and Catherine Bergego Scale was used to evaluate the degree of unilateral neglect in daily life pre-and post-test. Also, Positive Affect and Negative Affect Schedule was used to test subject's emotional status. Results : During the intervention period, the results of the Star cancellation test and Line bisection test showed the trend of reduction of unilateral neglect symptom and the effects of intervention were maintained after intervention. After intervention, the results of CBS indicated decreased unilateral neglect symptom in activities of daily living and the results of PANAS indicated increased positive affect. Conclusions : The result of this study indicate that auditory stimulus has a positive effect on the unilateral neglect, and may be considered as alternative choice in clinical occupational therapy for reducing unilateral neglect.

The Effects of Backward Walking with Rhythmic Auditory Stimulation on Gait and Balance in Patients with Stroke (리듬청각자극을 이용한 후방 보행 훈련이 뇌졸중 환자의 보행과 균형에 미치는 영향)

  • Hyun, Dong-Su;Choi, Jong-Duk
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.12
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    • pp.6237-6245
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    • 2013
  • This study examined the effects of backward walking with rhythmic auditory stimulation on the gait and balance of stroke patients. Twenty-one people were divided randomly into three groups; group I(n=7, forward walking), group II(n=7, backward walking), group III(n=7, backward walking by rhythmic auditory stimulation). Each group was trained for 30 minutes 5 times per week for 3 weeks, and was evaluated using a 10m walking test, time up and go test, functional reach test, stride length and step length asymmetry ratio. As a result, the pre- to post-test measures revealed a significant effect in each group on the gait speed, gait symmetry and balance(p<.05). The walking speed, gait symmetry and balance were higher in group II (p<.05) than in group I and it was the highest in group III(p<.05). The stride length was higher in group II and group III(p<.05) than in group I. In conclusion, for stroke patients, backward walking training with rhythmic auditory stimulation is effective on the gait speed, gait symmetry and balance.

Acoustic Voice Analysis in Patients with Penetration/Aspiration Via Videofluoroscopic Swallowing Study (비디오투시조영검사를 통한 침습/흡인에 따른 음성의 음향적 분석)

  • Kang, Young Ae;Jee, Sung Ju;Koo, Bon Seok
    • Korean Journal of Otorhinolaryngology-Head and Neck Surgery
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    • v.60 no.9
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    • pp.454-462
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    • 2017
  • Background and Objectives The present study aimed to investigate the effects of penetration/aspiration (P/A) on voice acoustic parameters. Subjects and Method Twenty-seven patients were analyzed with the videofluoroscopic swallowing study (VFSS) and then divided into two groups based on the modified Penetration and Aspiration Scale results. Ten patients (5 males and 5 females) were included in the Non-P/A group, and 17 patients (12 males and 5 females) in the P/A group. Stroke was the major cause of swallowing disorders. Three sustained /a/ vowels recorded in pre- and post-VFSS were analyzed. Mann-Whitney U-test was used to compare acoustic values before and after VFSS, and the receiver operating characteristics (ROC) curve with combination of significant parameters was also conducted. Results Among acoustic parameters, the length of analyzed sample (p=0.010), number of segments computed (p=0.018), total number detected pitch periods (p=0.017), and second formant (p=0.013) in pre- and post-VFSS were significantly different between Non-P/A and P/A groups. In the P/A group after VFSS, the means of these significant parameters decreased. According to ROC combined with four significant parameters, the probability of predicting P/A condition was 84% (p=0.005), the sensitivity was 80%, and the specificity was 80%. Conclusion Voice acoustic analysis can reflect voice changes by penetration/aspiration and the combination of significant parameters can also detect swallowing disorders. Therefore, voice analysis can be a reliable screening tool for patients with swallowing disorders.

A Case Report of a Patient with Voiding Dysfunction Caused by Cerebral Infarction Treated with Dangguishaoyao-san-hap-Jeoryeong-tang (뇌경색 이후 발생한 배뇨곤란 환자에 대한 당귀작약산 합 저령탕 치험 1례)

  • Sun-woo Kwon;Choong-hyun Park;Ji-yoon Lee;Hye-soo Youn;Eun-chang Lee;Jung-min Son;Yi-jae Kwon;Hyo-jeong Lee;Jung-eun Lee
    • The Journal of Internal Korean Medicine
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    • v.44 no.5
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    • pp.1041-1049
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    • 2023
  • Objectives: The aim of this study is to describe the effects of treatment with traditional Korean medicine on a patient with voiding dysfunction caused by cerebral infarction. Methods: The patient was treated with herbal medicine, moxibustion, acupuncture, and electroacupuncture. The effects of these treatments were evaluated using the Korean version of the Modified Barthel Index and a post-void residual volume. Results: In this study, the Korean medicine Dangguishaoyao-san-hap-Jeoryeong-tang resulted in improvements in this patient with post-stroke urinary retention and successful removal of the indwelling catheter. Conclusion: The results suggest that traditional Korean medicine may be effective in ameliorating dysfunction caused by cerebral infarction.

Characteristics Change of Spatial and Temporal Parameters of Gait in Spastic Hemiplegic Patients by Reciprocal Inhibition (상호억제 기법에 의한 경직성 편마비 환자 보행의 공간적, 시간적 특성 변화)

  • Kim Jong-Soon;Lee Hyun-Ok;Ahn So-Youn;Koo Bong-Oh;Bae Sung-Soo
    • The Journal of Korean Physical Therapy
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    • v.16 no.4
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    • pp.59-79
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    • 2004
  • The purpose of this study was to determined the effects of reciprocal inhibition on spatial-temporal gait parameters in spastic hemiplegic patients through GaitRite system. The subjects were consisted 45 patients who had spastic hemiplegia due to stroke. All subjects randomly assigned to 3 group : manual reciprocal inhibition program group(manual group), neuromuscular electrical stimulation group(NMES group) and control group. The manual group received voluntary isometric contraction of pre-tibia muscle. The NMES group received neuromuscular electrical stimulation on tibialis anterior. The control group was not recieved any therapeutic intervention. Before and after experiments, spatial-temporal gait parameters and functional ambulatory profile was measure in all patients. The data of 30 patients who complete experimental course were statistically analysed. The results of this study were as following : 1. The percentage of change of functional ambulatory profile were markedly increased in manual group but statistically non significant(p>.01). 2. The percentage of change of gait velocity and cadence were markedly increased in manual group but statistically non significant(p>.01). 3. Asymmetry ratio of gait elements were more improved in manual group but statistically non significant(p>.01). 4. There were no statistical difference between pre-test and post-test with functional ambulatory profile, gait velocity, cadence and asymmetry ratios in NMES group(p>.01). 5. There were no statistical difference between pre-test and post-test with unctional ambulatory profile, gait velocity, cadence and asymmetry ratios in control group(p>.01). In conclusion, the present results revealed that reciprocal inhibition which produced by voluntary isometric contraction of pre-tibia muscle can be improved spatial-temporal gait parameters including functional ambulatory profile in hemiplegic patients. Therefore, reciprocal inhibition is useful to improve functional activities in hemiplegic patient. Further study should be done to analyze the effects of intervention duration of reciprocal inhibition, appropriate muscle contraction, optimal time to apply the reciprocal inhibition in more long period.

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