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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of rehabilitation welfare engineering & assistive technology
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Journal DOI :
Rehabilitation Engineering And Assistive Technology Society of Korea
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Volume & Issues
Volume 10, Issue 2 - May 2016
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Effect of Aquatic Ramp Exercise on Gait And Activity Of Daily Living In Child With Spinal Muscular Atrophy Type II: Single Subject Research
Sung, Yun-Hee ;
Journal of rehabilitation welfare engineering & assistive technology, volume 10, issue 2, 2016, Pages 107~112
DOI : 10.21288/resko.2016.10.2.107
The purpose of this study was to determine the effect of aquatic ramp walking exercise on the activity of the quadriceps, gait and activity of daily living in child with Spinal Muscular Atrophy (SMA) type II. A 5 years-old girl with SMA type II participated in this study. This study used single-subject reverse(A-B-A) design study. There are 12 sessions(4weeks 3 times a week) each during the baseline phase(A), the intervention phase(B), the follow up phase(A). During the baseline phase and the follow up phase performed general aquatic therapy, the intervention phase additional performed walking activity on ramp in pool (60m). Surface electromyogram, Timed Up and Go (TUG) test, ACTIVLIM were used as outcome. During the intervention phase, there were decrease on the activity of the quadriceps. In modified TUG test, gait time reduced during the intervention phase. The ACTIVLIM logit score increased during intervention phase by comparison with the baseline phase. These findings suggest that an aquatic ramp walking exercise activities have the therapeutic possibility on the quadriceps activity and gait ability for child with SMA type II.
A Study on the Influence of Reasonable Accommodation on the Employment Probability and Job Retention of the People with Disabilities
Jun, Young Hwan ;
Journal of rehabilitation welfare engineering & assistive technology, volume 10, issue 2, 2016, Pages 113~118
DOI : 10.21288/resko.2016.10.2.113
This study was aimed to analyze the Influence of Reasonable Accommodation on the Employment Probability and Job Retention of the People with disabilities. Survey on the employment discrimination of people with disabilities was utilized. The methodologies used in the study are logistic regression estimating job probability, multiple regression to evaluate job retention. As a result, reasonable accommodation for initial exam was not statistically significant on the employment probability. While, exam process reasonable accommodation was statistically significant on the employment probability. For job retention, recruit accommodation, workplace access accommodation were not significant on the job retention. While, company regulation and job adjustment was statistically significant on the job retention. It is necessary to be provided with reasonable accommodations in the direction of increasing the employment and strengthening job retention of people with disabilities. There is a need to support and expand the reasonable accommodation to the employer by the policy.
A Study on the Factors Influencing on Life Satisfaction of Industrially Injured Workers
Ahn, Seong Ah ; Yeum, Dong Moon ;
Journal of rehabilitation welfare engineering & assistive technology, volume 10, issue 2, 2016, Pages 119~126
DOI : 10.21288/resko.2016.10.2.119
This study aimed to analyze the effects of psychological-social factors, economic factors and Health-related factors of industrially injured workers on life satisfaction. For this study, the data of the 2014 1st Korea Panel Study of work`s compensation Insurance. From all the subjects study, 2000 industrially injured workers who were fit for the study purpose were chosen and analysis were implemented. Self efficacy, self esteem, old age preparations of psychological-social factors influenced on life satisfaction. Economic activity, socioeconomic status of economic factors influenced on life satisfaction. Subjective health status, with the help of others of Health-related factors influenced on life satisfaction. The model explained 34% of the valuables.
Usability Testing of OpenCourseWare(OCW) by College Students with Visual and Hearing Impairments - Focused on the Accessibility of KOCW -
Son, Ji-Young ; Yeom, Myung-Sook ;
Journal of rehabilitation welfare engineering & assistive technology, volume 10, issue 2, 2016, Pages 127~132
DOI : 10.21288/resko.2016.10.2.127
The purpose of the study is to identify the accessibility of OpenCouresWare(OCW) from the perspective of college students with visual and hearing impairments. Six students with visual impairments(3 blind and 3 low vision) and four students with hearing impairments(2 deaf, 2 hard of hearing) implemented usability testing. Two modules in KOCW were selected for testing. Students implemented usability testing and then each individual case was analyzed through quantitative and qualitative methods. As results, the degree of usability and accessibility in two modules indicated low level. Implications and recommendations for designing OCW module based on the results were suggested.
Study on Dynamic Tip-over Analysis of Foldable Electric Wheelchair
Jang, Dae-Jin ; Kim, Yong-Cheol ; Kim, Shin-Ki ; Mun, Mu-Sung ; Park, Jong-Cheol ;
Journal of rehabilitation welfare engineering & assistive technology, volume 10, issue 2, 2016, Pages 133~139
DOI : 10.21288/resko.2016.10.2.133
An electric wheelchair is a assistive device to maneuver on the ground. Tip-over of an electric wheelchair is increasing every year. Dynamic stability metric test item in KS P 7176 has not ensured safety of electric wheelchair on the slope. This study presents design the foldable electric wheelchair that can load in the car and analysis of tip-over measurement which is easily computed for electric wheelchair. Wheelchair frame is designed with a four-bar link mechanism for a foldable structure, and seat module, battery and power driving module can be separated. This analysis is performed during a maneuver on the ground by force-moment stability metric. Several elements, center of gravity position, rotational radius and acceleration, were evaluated how to affect stability metric. This stability metric can reduce tip-over of wheelchair and provide a clue to make of dynamic stability test item.
Detection of Tongue Area using Active Contour Model
Han, Young-Hwan ;
Journal of rehabilitation welfare engineering & assistive technology, volume 10, issue 2, 2016, Pages 141~146
DOI : 10.21288/resko.2016.10.2.141
In this paper, we apply limited area mask operation and active contour model to accurately detect tongue area outline in tongue diagnosis system. To accurately analyze the properties of the tongue, first, the tongue area to be detected. Therefore an effective segmentation method for detecting the edge of tongue is very important. It experimented with tongue image DB consists of 20~30 students 30 people. Experiments on real tongue image show the good performance of this method. Experimental results show that the proposed method extracts object boundaries more accurately than existing methods without mask operation.
Evaluation of Intralimb Coordination in Transfemoral Amputee during Level Walking
Chang, Yoon-hee ; Jeong, Bo-ra ; Kang, Sung-jae ; Ryu, Jei-cheong ; Mun, Mu-seong ; Ko, Chang-Yong ;
Journal of rehabilitation welfare engineering & assistive technology, volume 10, issue 2, 2016, Pages 147~153
DOI : 10.21288/resko.2016.10.2.147
The aims of this study were to evaluate the joint coordination between hip and knee joints in the transfemoral amputees, and its symmetry between sound and prosthetic limbs. Seven transfemoral amputees (
) and 7 able bodies (
) participated in this study. They walked at a self-selected walking speed across a 10m level ground. Simultaneously angle and angular velocity in the hip and knee joint were measured by motion analysis system. Then continuos relative phase(CRP), standard deviations of CRP (CRP_SD) and symmetry index(SI) were calculated. In able bodies, there were no differences of the parameters between left and right limb(all p>0.05). However, significant differences between sound and prosthetic limb in most of the parameters, except for CRP for stance phase were shown (all p<0.05). There were differences in all SI between transfemoral amputees and able bodies (p<0.05). In conclusion, joint coordination was altered in transfemoral amputee during level walking and shown in interlimb asymmetry.
A Study of Gait Imbalance Determination System based on Encoder, Accelerometer and EMG sensors
Park, Yong-Deok ; Kim, Sang-Kyun ; Kwon, Jang-Woo ; Lee, Sang-Min ;
Journal of rehabilitation welfare engineering & assistive technology, volume 10, issue 2, 2016, Pages 155~162
DOI : 10.21288/resko.2016.10.2.155
The purpose of this study was to determine the walking imbalance using the EMG(electromyogram). To confirm the effectiveness of the proposed encoder and acceleration, EMG sensor based gait imbalance determination system. This experiment was carried out to evaluation with a healthy adult male to 10 people. The Encoder device is attached to the hip and knee joint in order to measure the gait signal. The Accelerometer sensors are attached on the ankle. The EMG sensors are attached on the vastus lateralis and anterior tibialis. SI(Symmetry Index) was used as an index for determining the gait imbalance. To confirm if the judgment has been made correctly, the heel, regarded as the cause of unbalanced ambulation, was adjusted from 0 cm to 6 cm with intervals of 1.5 cm. In the cases of the encoder and the EMG, the difference of 0 cm and 1.5 cm is determined into normal walk but the other difference is distinguished into gait imbalance. In the case of the accelerometer, the difference of 0 cm, 1.5 cm and 3 cm is determined into normal walk but the other difference is distinguished into gait imbalance.
The Effect of Stress Reduction on Color Stimulus Using Healing Bed in Cypress Tree
Shin, Sun-Hye ; Yu, Mi ; Oh, Seung-Yong ; Kim, Ju-Ri ; Song, Eui-Sun ; Moon, Myoung-Chul ; Lim, Seung-Taek ; Park, Hee-Jun ; Kwon, Tae-Kyu ;
Journal of rehabilitation welfare engineering & assistive technology, volume 10, issue 2, 2016, Pages 163~170
DOI : 10.21288/resko.2016.10.2.163
The purpose of this study was to verify the emotional response of user to LED light colors in healing bed system in cypress tree. Eight colors of LED light were provided including red, orange, yellow, green, blue, indigo, violet and white. And three illumination color temperature were provided including 3,000K, 5,000K, 8,000K. Seven subjects in their twenties were involved without the medical history of eyes and heart disorders. The subjects were exposed to LED lighting during 5 minutes and their emotional response was evaluated through the following: first, at the physiological effect heart rate variability(HRV) was measured during the stimulation; second, at the emotion level the subjects were asked about lighting color and color temperature through a survey. Results, lower color temperature of 3,000K and green color shows high value on HRV. We have found that there is a difference of physiological and emotion level effect depending on color stimulus. This study could be applied to reference data to analysis of a decrease in fatique and charges of brain waves for color stimulus.
Research of Usability Test on Single-Seater Rider Robot using Omni Wheel Drive
Rhee, Kun-Min ; Kim, Dong-Ok ;
Journal of rehabilitation welfare engineering & assistive technology, volume 10, issue 2, 2016, Pages 171~176
DOI : 10.21288/resko.2016.10.2.171
By developing rider robot using omni wheel drive, a usability test for 6 people was conducted after finding out inconvenient factors and ways of improvement. The results of this research are as follows. First, we researched inconvenient factors captured by object of experiment using a rider robot who is living in the dormitory. It showed that the disabled showing 1.6 of satisfaction degree felt more inconvenient for normal people showing 4 of satisfaction degree. It was found that the height of seats is 10 centimeters higher, which caused inconvenience for moving. Second, each of the disabled and normal people showed 2.33 and 2.62 of satisfaction degree below the average for seats, back of a seat, armrest, footrest, security belts. However, for the revised design both of them showed 3.5 of satisfaction degree over the average. Third, most people felt this robot is quite expensive and said they would purchase it if subsidized by the government. Therefore, based on inconvenient factors and ways of improvement found in this research, further study needs to be conducted so as to improve the quality of life of the disabled.