• KSII Transactions on Internet and Information Systems (TIIS)
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• v.17 no.9
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• pp.2377-2398
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• 2023

In our daily lives, we engage in a variety of tasks that rely on our senses, such as seeing. Blindness is the absence of the sense of vision. According to the World Health Organization, 2.2 billion people worldwide suffer from various forms of vision impairment. Unfortunately, blind people face a variety of indoor and outdoor challenges on a daily basis, limiting their mobility and preventing them from engaging in other activities. Blind people are very vulnerable to a variety of hazards, including falls. Various barriers, such as stairs, can cause a fall. The Internet of Things (IoT) is used to track falls and send a warning message to the blind caretakers. One of the gaps in the previous works is that they were unable to differentiate between falls true and false. Treating false falls as true falls results in many false alarms being sent to the blind caretakers and thus, they may reject the IoT system. As a means of bridging this chasm, this paper proposes an intelligent shoe that is able to precisely distinguish between false and true falls based on three sensors, namely, the load scale sensor, the light sensor, and the Flex sensor. The proposed IoT system is tested in an indoor environment for various scenarios of falls using four models of machine learning. The results from our system showed an accuracy of 0.96%. Compared to the state-of-the-art, our system is simpler and more accurate since it avoids sending false alarms to the blind caretakers.

• Korean Journal of Agricultural and Forest Meteorology
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• v.2 no.4
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• pp.175-182
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• 2000

Spatial interpolation of daily temperature forecasts and observations issued by public weather services is frequently required to make them applicable to agricultural activities and modeling tasks. In contrast to the long term averages like monthly normals, terrain effects are not considered in most spatial interpolations for short term temperatures. This may cause erroneous results in mountainous regions where the observation network hardly covers full features of the complicated terrain. We developed a spatial interpolation model for daily minimum temperature which combines inverse distance squared weighting and elevation difference correction. This model uses a time dependent function for 'mountain slope lapse rate', which can be derived from regression analyses of the station observations with respect to the geographical and topographical features of the surroundings including the station elevation. We applied this model to interpolation of daily minimum temperature over the mountainous Korean Peninsula using 63 standard weather station data. For the first step, a primitive temperature surface was interpolated by inverse distance squared weighting of the 63 point data. Next, a virtual elevation surface was reconstructed by spatially interpolating the 63 station elevation data and subtracted from the elevation surface of a digital elevation model with 1 km grid spacing to obtain the elevation difference at each grid cell. Final estimates of daily minimum temperature at all the grid cells were obtained by applying the calculated daily lapse rate to the elevation difference and adjusting the inverse distance weighted estimates. Independent, measured data sets from 267 automated weather station locations were used to calculate the estimation errors on 12 dates, randomly selected one for each month in 1999. Analysis of 3 terms of estimation errors (mean error, mean absolute error, and root mean squared error) indicates a substantial improvement over the inverse distance squared weighting.

• Journal of the Korean Society of Physical Medicine
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• v.15 no.3
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• pp.79-87
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• 2020

PURPOSE: Physical therapists are always exposed to work-related musculoskeletal disorders. Although kinesio taping can support the joints and assist movement, studies of the effects of kinesio taping on these physical therapists are lacking. This study examined the effects of Kinesio-taping on pain, grip strength, range of motion and daily living skills in physical therapists with work-related musculoskeletal disorders. Pain was measured using a 100 mm VAS. The grip strength was measured using a handgrip dynamometer. The range of joint motion was measured using a goniometer. Living skills were measured by patient-rated wrist evaluation. METHODS: Twenty physical therapists with wrist pain (Kinesio taping: n = 10, Sham taping: n = 10) received taping for each group, and measured the pain, grip strength, range of motion and daily living skills before (Baseline) and after taping (Nine hours). RESULTS: All data were analyzed using Repeated Measure ANOVA (p < .05). In the Kinesio group, resting pain (-14.9), movement pain (-20.5), and daily living skills (-9.55) were improved significantly compared to the baseline (p < .05). The grip strength and range of motion were not changed (p > .05). The sham group showed no significant change in all variables (p > .05). CONCLUSION: Physical therapists with work-related musculoskeletal disorders of the wrist should apply kinesiotaping to improve the occupational tasks.

• Journal of The Korean Society of Integrative Medicine
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• v.1 no.4
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• pp.15-24
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• 2013

Purpose : The purpose of this pilot study was to examine the effects of task-oriented training program on balance, activities of daily living(ADL) performance, and self-efficacy in stroke patients. Method : Two subjects with stroke in experimental group participated in the task-oriented training program, while two subjects with stroke in control group received traditional rehabilitation therapy for 4 weeks, 30 minutes per session, four times per week. The task-oriented training program consisted of four tasks with 4 difficulty levels. In two groups, balance was examined with using the Berg Balance Scale(BBS), ADL performance was examined with using the Modified Barthel Index(MBI), and Self Efficacy was evaluated with using the Self-Efficacy scale(SES) before and after 4-week training. Result : After 4 weeks training, all scores of measurement variables increased in both the experimental group and the control group, but the average rates of change differed between the two groups. After the training program, the scores of BBS, MBI, and SES in experimental group increased to 11.4%, 9.9%, 15.4%, respectively than pre-training. Conclusion : According to the results of this study, task-oriented training program might be proposed as a intervention to improve balance ability, ADL performance, and self-efficacy in stroke patients.

• Journal of the Korean Society of Physical Medicine
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• v.18 no.2
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• pp.103-114
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• 2023

PURPOSE: This study compared the effects of computer-based and virtual reality-based cognitive rehabilitation programs on the cognitive function, upper limb function, activities of daily living, and their impact on the prefrontal cortex in convalescent stroke patients. METHODS: Ten recovering stroke patients were assessed for their cognitive function, upper limb function, and daily living activities using the Neurobehavioral Cognitive Status Examination, the Korean version of the Fugl-Meyer Assessment, and the Korean version of the Modified Barthel Index. The prefrontal cortex activity was measured with functional Near Infrared Spectroscopy. The virtual reality-based cognitive rehabilitation group utilized a program of daily living activities delivered via a laptop and Oculus Rift. The computer-based cognitive rehabilitation group performed various cognitive tasks on an all-in-one PC. Both groups underwent cognitive rehabilitation training for 30 minutes per day, three times a week, for six weeks, with identical conventional rehabilitation therapies in the hospital. RESULTS: Both programs positively impacted the cognitive and physical functions. On the other hand, the virtual reality-based cognitive rehabilitation program had a larger influence on improving the cognitive and physical functions of convalescing stroke patients. CONCLUSION: The virtual reality program suggests its potential to enhance cognitive and physical functions in convalescent stroke patients through increased engagement, focus, real-time feedback, and game elements, making it a promising rehabilitation approach.

• Journal of Korean Physical Therapy Science
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• v.2 no.3
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• pp.707-725
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• 1995

The hand is an integral part of normal hand functioning. The ability of the hand to grasp and manipulate objects or tools is necessary for accom-plishing many tasks of daily living. Therefore it is important to improve hand function for patient with hand impairment. The objectives of this article are to review the developmental process of hand function and to described the types of grasp, grip, pinch, and prehension. Developmental process of hand function is based on general developmental theory as Vojta, Bobath and Ayres. There are many kinds of classification of prehension, grasp, and pinch. This review include the classification by Malick, Kiel, Melvin, Sollrman & Sperling, Pedretti & Zoltan, Tyldesley & Grieve' book, Norkin & Levangie' book. This article hope to give the information for application in physical and occupational therapy practice.

• Journal of Korean Physical Therapy Science
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• v.6 no.1
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• pp.861-877
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• 1999

The hand is a very specialized organ that functions to obtain information and to execute motor acts essential to human interaction with the environment. Loss of hand function through infections affects the mechanical tasks that the hand performs and psychological adjustments to their disability. Infection is a disastrous complication of hand injuries and adequacy of circulation is of greatest importance to prevention of infection. Careful debridement, incision, and adequate drainage and antibacterial treatment are of great importance. Optimal care of the infected hand demands that carefully surgical care, early postoperative exercises and other therapy. Hand rehabilitation has grown as a specialty area of both physical and occupational therapy. It is essential that the surgeon and therapist work together, and communicate freely-all of which generally require daily contact. Treating the psychological loss suffered by the patient with a hand infections is an integral part of the rehabilitation therapy as well. Treatment techniques, Whether thermal modalities or specifically designed exercises, are used as a bridge to reach a further goal of returning to functional performance.

• Journal of Korean Society of Rural Planning
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• v.1 no.1
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• pp.111-124
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• 1995

This paper discuss on the strategies for rural economic development Maul purposes of this paper are as follow: First, to review importance of economic promotion in the integrated rural developmental scheme, Second, to identify structural problems of rural economy, and Third, to suggest promotional strategies for the development of rural economy. Economic vitalization is the very important strategy to support daily life of rural population. Since rural economy heavily depends on agricultural sector which has relatively low productivities, diversification of rural economy through introduction of 2nd and 3rd industrial sector is one of the most urgent tasks in rural Korea. Integrated, localized, and planning oriented approaches with reformation of incentive system for the development of rural economy are strongly recommended as new strategies.

• 제어로봇시스템학회:학술대회논문집
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• 2001.10a
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• pp.161.5-161
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• 2001

Robots are required to assist our activities in daily life. In this paper, we focus on arm movement to catch moving object as one of important tasks frequently performed by human. We propose an algorithm which enables a robot to perform human-like arm motion to catch a moving object. First we analyze human hand trajectories and velocity profiles to catch an object. From the experimental results, we extract some characteristics in the process of approaching and following a moving object and confirm that these are necessary to realize human-like motion. We then adopt an instantaneous optimal control method which evaluates the error and energy cost at each sampling step, and design two time-varying weight matrices to introduce human characteristic into robot motion. The matrix concerning the error is defined as a time-increasing ...

• The Korean Journal of Community Living Science
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• v.22 no.1
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• pp.163-179
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• 2011

This study was conducted in an inclusion class in M Inclusion Day Care Center in Busan. Thirteen sessions of cooperation teaching were applied in the inclusion class. In this sense, the purpose of this study was to identify what kinds of change occurred in the perspectives of teachers' role on both the general education teacher and the special education teacher during cooperation teaching. The data were collected through participation observations, teachers' reflective journals, and interviews. From the results of the study, it could be suggested that various types of teaching strategies need to be introduced to both teachers from the beginning of inclusion so that the general teacher and the special education teacher could understand each others roles and tasks, share opinions and ideas about daily activities, and experience the roles of the other teacher.