Sunyoung Kang

Effects of postnatal treadmill exercise on apoptotic neuronal cell death and cell proliferation of maternal-separated rat pups.

Early adverse experiences resulting from maternal separation may lead to neuronal cell death and they can eventually cause memory impairment. In this study, we investigated the effects of postnatal treadmill exercise on the long-term memory capability, spatial learning ability, and depressive state, on the 5-hydroxytryptamine (5-HT, serotonin) synthesis and tryptophan hydroxylase (TPH) expression in the dorsal raphe nuclei, and on the apoptosis and cell proliferation in the hippocampal dentate gyrus of rat pups following maternal separation. The rat pups in the maternal separation groups were separated from their respective mothers on the postnatal day 14. The rat pups in the maternal separation group showed depressive state with deceased memory capability and learning ability compared to the rat pups in the maternal care group. Postnatal treadmill exercise increased memory capability and learning ability and alleviated depressive state of the rat pups in the maternal separation group. The 5-HT synthesis and TPH expression in the dorsal raphe nuclei and cell proliferation in the hippocampal dentate gyrus were significantly decreased in the maternal-separated rat pups, and postnatal treadmill exercise increased 5-HT synthesis, the TPH expression, and the cell proliferation. In contrast, apoptotic neuronal cell death in the hippocampal dentate gyrus was significantly increased in the maternal-separated rat pups, and postnatal treadmill exercise suppressed the maternal separation-induced apoptosis. The present results demonstrated that postnatal treadmill exercise alleviated maternal separation-induced depression with decrease of memory capability and learning ability, by suppressing apoptotic neuronal cell death and by enhancing cell proliferation.

A healthcare information sharing scheme in distributed cloud networks

Current information & communication technology infrastructures are struggling for a wide variety of devices, services, and business and technology evolution. Cloud computing is becoming a promising platform and has developed rapidly. In contrast to traditional enterprise IT solution, it enables enterprises to procure computing resources on demand basis and delegate management of all the resources to the cloud service provider. Healthcare information networks have emerged as one of the major research area in the cloud networks. Healthcare information is communication and information systems and technology that facilitate quality patient care, progressive medical education, and innovative research. Healthcare information networks must ensure the reliability and efficiency because it transfers highly personal data. Thus, it guarantees and keeps a certain level of transfer efficiency. In the distributed cloud environments, management costs for the network and computing resources are solved fundamentally through the integrated management system. It can increase the cost savings to solve the traffic explosion problem of core network via a distributed micro datacenters (DCs). However, traditional flooding methods may cause a lot of traffic because it had to send data to all the neighbor DCs. Restricted Path Flooding algorithms have been proposed for this purpose. In large networks, there is still the disadvantage that may occur traffic. In this paper, we develope lightweight path flooding algorithm to improve existing flooding algorithm using hop count restriction. This paper also investigates the problem of partial information sharing.

The study on the application of virtual reality in adapted physical education

With the interest in ICT technology and the efforts of technology development, future ICT technologies such as virtual reality (VR) technology are rapidly developing. Virtual reality technology enables to acquire of specific technologies in a virtual space similar to reality, and can be repeated as many times as necessary. So it is effective to apply it to the disabled as exercise contents for sports experience and rehabilitation. Effective VR sports for the disabled should be applied differently according to the type and severity of disability rather than applying the latest technology unconditionally. And If VR technology is combined with artificial intelligence (AI) in the future, new changes will be made in the field of physical education for the disabled as well as non-disabled sports, furthermore it will help to improve the sports skill of the elite athletes with disabilities.

The study of exercise and health services platform for prevention of dementia

Periodical exercise is important and essential for preventing dementia, for increasing treatment effect and for increasing quality of life. Exercise and health service platform for dementia prevention is the open platform that enables individuals to effectively manage and integrate individuals dementia-related health information that are scattered around at the hospitals, life log service companies, health check-up centers, public clinics, fitness centers and others based on the ICT to enable use of the information for the customized dementia prevention services. It is comprised of three delivery channels that are mutually connected; dementia perception improvement and education service, dementia risk factor management service, and dementia diagnosis structure service. Platform for the elderly dementia prevention and health service gathers together the information on dementia-related risk factors and on the exercise that was scattered around to enable supply of diverse services for dementia prevention.

Virtual private network for wellness sports information

To this day, active discussions and attempts were made to develop the IT foundation in order to ensure growth and advancement of the sports related industry and to ensure individual companies marketability and enhancement. In particular, development of the system in the current high-speed network in Korea that enables effective linkage and sharing of sports related information, and the system effective management and operation are certainly important issues. In order for the developed IT infra in Korea to act as a growth driver for the sports industry, it is important to develop structured and user-friend information network to make an effort to connect these information networks in an integrated manner. Development and linkage of effective information network in the sports field are expected to become an important medium for satisfying diverse demands for the sports. This research propose a virtual private network for the development of large capacity for the sports related information based on the nation technological capability

Physical Activity Intervention Platform for the Elderly with Mild Cognitive Impairment

The purpose of this study is to propose a physical activity platform as an intervention method to induce the increase of physical activities of the elderly with mild cognitive impairment, a pre-dementia stage leading to actual dementia which emerged as social problem amid the increase in the elderly population. Physical activity plays a role in improving cognitive function and also serves an important role in mitigating and preventing the decrease in cognitive dysfunction arising from mild cognitive impairment and aging, and it has been found that improvement in cognitive function is observed more frequently in older elderly than in relatively young elderly. Vigorous efforts need to be made for management of the elderly with mild cognitive impairment based on formation of efficient platform structure which helps increase physical activity, which is the main factor preventing the progression to dementia. The data on physical activity and health, collected from the sensors detecting the amount of exercise, mobile devices and wearable device outfitted with exercise sensors, are periodically updated through the platform to provide information to the elderly and their families in an open and bi-directional way. Moreover, the two-way information which is provided based on feedback process can help increase the physical activity, enabling prevention of decline in cognitive functions and promoting maintenance of cognitive functions.

Smart Care to Improve Health Care for the Elderly

Smart care technology which has made strides is recognized vital in the aging society. This study was intended to examine trends and outlook of smart care by type of elderly and situation to spur improvement in health management for the elderly. Smart cares by type of elderly and situation were elderly-friendly smart home, smart care for management of chronic diseases in the elderly, and smart care for the elderly living alone. Smart care is needed to be implemented actively not only to reduce medical costs and improve the quality of medical services but also to ensure safety and quality of life for the elderly. However, multi-faceted efforts need to be made to help overcome the difficulties arising from degraded cognitive function of the elderly, considering the basic orientation of smart care such as mobile, smart, cloud computing, IoT, etc. For that, it would be necessary to develop elderly-friendly devices suited for characteristics of the elderly group and to actively deploy professional manpower, in parallel with active support from related organizations, who can provide instant support to the elderly encountering difficulty with the use, so as to stimulate the smart care service in the period ahead. Furthermore, as health information and privacy information generated in connection with individuals are sensitive data, it would be the most important to ensure that strict security is maintained for safe data transmission and that only necessary part of information is shared selectively.

The Study of Application Development on Elderly Customized Exercise for Active Aging

The purpose of this study is to examine the current status and problems pertaining to the applications on the Korean elderly’s exercise in the Korean android market using smart phone, for the development of the exercise program application customized for the elderly and to provide services. Moreover, improvement measures are analyzed to provide the base data to provide resourceful information to the elderly, leaders, trainees interested in the elderly and institutions and to develop customized elderly exercise application for the Active Aging. When the elderly exercise applications in Korea were examined, there is only one exercise program with standardized contents. Only the program called the “Health Ewha” present convergence of food, nursing and sports, but this application cannot be searched easily with keyword. Thus, this study planned customized elderly exercise for Active Aging, and this is the base data for developing application that can input information, measuring current state (exercise strength level setting, physical strength via heart rate measurement), and customized exercise program (cardio, muscular strength, flexibility, equilibrium, and coordination exercise for healthy elderly and exercise by disease).

A Study on the Convergence Education of Science and Physical Activity Using IT Technology

This study seeks to propose class model that is needed for executing education for the converged human resources and to increase the scientific knowledge of the students using IT technology at the field based on the theoretical framework of the education for converged human resources. During the introduction stage, students are presented with the study materials that can increase their interest. As such, contents of the previous stages – introduction to activity and study goal setting, organizing of the terms during the main activity and demonstration of the physical activity by applying IT technology, organizing and investigation – are re-verified, and students discuss about our body and movement in a diverse and creative manner while undergoing the problem solving process for the given themes for investigation. Through these series of processes, it is expected that the studies can come up with diverse ideas and grow their creative problem-solving ability while carrying out convergence education in the science theories and physical activities. Although this study suggested means to apply convergence education centered on the physical activities of specific grades in stages, it is hoped that a wider convergence education opportunity may be provided going forth by developing differentiated protocol in the domain that enables convergence education by each grade.

Application of ICT for Exercise Data Management

Mobile devices, easily accessibly without constraints of time or space, have emerged as a means to replace existing mode of exercise. Smartphone applications have been the most commonly adopted for exercise data management. As users can select their desired applications, convenience increases significantly. Wearable devices, which feature tracking terminals, have gained grounds rapidly even in health and sports segments of the market as they have optimal conditions for exercise data management. For efficient exercise data management, various devices, not existing single platform, should be used, and various content services should be provided. Amid trends towards synchronization of various mobile devices with services over time, the exercise data management is expected to advance into new realm and adopt new values.