• Title, Summary, Keyword: Balancing experience

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Effects of Fall Experience on the Balancing Ability and Ankle Flexibility in Elderly People

  • Kim, Hong Rae;Go, Jun Hyeok;Shin, Hee Jun
    • Journal of International Academy of Physical Therapy Research
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    • v.9 no.1
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    • pp.1387-1392
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    • 2018
  • The purpose of this study was to investigate the effect of fall injuries on the balancing abilities and ankle flexibility. Fifteen of the voluntary participants had no experience of falling in the last two years (none falling group, NFG) and 15 others experienced at least one (falling group, FG). Static balance (sway length, sway area), dynamic balance (timed up and go (TUG), and functional to reach test (FRT) were measured in each group. In comparison of static balance, sway length was not significantly different between NFG and FG in both eyes open and eyes close, however the sway area of the FG was significantly wider than that of the NFG (p<.05). In dynamic balance comparisons, TUG of FG was significantly longer than that of NFG (p <.05), however FRT and STS were no significant difference between groups. Ankle flexibility was significantly higher in NFG than in FG. This study suggests that the fall prevention program should include methods for improving ankle stability and lower extremity function.

Convergent Research on Balancing Experience of Work and Child care of North Korean Female Defectors (북한이탈여성의 일과 자녀돌봄 양립 경험에 관한 융합연구)

  • Kim, Yoojung
    • Journal of the Korea Convergence Society
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    • v.8 no.10
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    • pp.385-395
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    • 2017
  • This qualitative research is conducted to explore the balancing experience of work and child care of North Korean female defectors. Five of North Korean female defectors from double income family in their 40's were selected and interviewed. The interview data were analyzed by a phenomenological qualitative method. The five categories were derived from the data and included as follows: , , , , . Based on the results of the research the suggestions for practical services, such as parenting education, career path development programs and policies with gender perspective were made. Limitations of the research and further research recommendations were suggested as well.

A Comparison Study of Walk and Balance Ability of Women Elderly with or Without Falls Experience (낙상 경험 유무에 따른 여성 노인의 보행과 균형 능력에 관한 연구)

  • Hwang, Byeong-Jun;Kim, Jong-Woo;Seo, Hyon-Kyu
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.17 no.2
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    • pp.19-24
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    • 2011
  • Background: The elderly are likely to fall due to physical and mental atrophies, and experiencing falls may result in fear of falls and lack of self-confidence, which also leads to hesitation to physical activities and changes in walk and balance, the major variables in independent daily life. Methods: In three senior citizen centers located in D city, 22 elderly women aged 65 or older were chosen, and they filled in the questionnaire which included their agreement to voluntarily participate in the survey and medical histories. As to whether they had falls experience, the medical history items in the questionnaire asked them if they had falling down or falls once a year, twice for the three years. The objects were divided to NFE (non-falls experience) and FE (falls experience). Results: 1. As to walking abilities, significant difference was found between NFE and FE regarding walk width, stepping with two feet, and stride length while there was no significant different in terms of cadence. 2. As to balancing abilities, was significant difference between NFE and FE in terms of the physical body center area. As to the sit-to-stand, tandom gait test, no significant difference was found, and neither in the timed up and go test. Conclusions: The elderly with falls experience has inferior walking and balancing abilities to those without falls experience, and thus they are more exposed to the risks of falls.

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Pitch Angle Rigging, Tracking and Balancing of Smart UAV Rotor System (스마트무인기 로터 피치각 리깅, 트랙킹 및 밸런싱)

  • Lee, Myeong Kyu;Kim, Yusin;Choi, Seong Wook
    • Journal of Aerospace System Engineering
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    • v.3 no.3
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    • pp.17-23
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    • 2009
  • KARI SUAV (Smart Unmanned Aerial Vehicle) program is currently on the phase of ground and flight test. SUAV is a tilt rotor aircraft having the capability of vertical take-off/landing and high speed forward flight. The SUAV rotor system is 3-bladed, gimbaled hub type, which is not common for conventional helicopter configuration. In this paper, detailed procedure and method of rotor pitch rigging, tracking and balancing were described based on the experience of SUAV ground test.

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Nursing Care Experience of Korean Nurses Dispatched to West Germany (파독간호사의 간호경험)

  • Eun, Young
    • Journal of muscle and joint health
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    • v.24 no.2
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    • pp.119-129
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    • 2017
  • Purpose: The purpose of this study was to understand the nursing care experience of Korean nurses dispatched to West Germany during 1960~1970s. Methods: Qualitative research using thematic analysis was done. The participants were 13 people who were 60~70 years old. The data were collected by in-depth and focus group interviews from January to June 2016. Results: The nursing experience of Korean nurses dispatched to west Germany were composed of 197 initial codes, 15 sub themes, 4 themes including "Challenging the possibilities", "Wandering in the sea without preparation", "Distinguishing between difference and discrimination", and "Balancing oneself in two chairs". Conclusion: In order for nurses to successfully move to another country, it is needed to educate the language and inform the nursing system and preliminary education on specific nursing activities.

Adaptive Periodic MLB Algorithm for LTE Femtocell Networks (LTE 펨토셀 네트워크를 위한 적응적 주기의 MLB 알고리즘)

  • Kim, Woojoong;Lee, Jeong-Yoon;Suh, Young-Joo
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.38C no.9
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    • pp.764-774
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    • 2013
  • The number of users and data packets has increased in 4G cellular networks. Therefore, 4G cellular network providers suffer from the network capacity problem. In order to solve this problem, femtocell concept is suggested. It can reduce the coverage hole and enhance the QoS. However, only small number of femtocells experience the large amount of loads. To solve this problem, Mobility Load Balancing (MLB) algorithm is suggested, which is a kind of load balancing algorithm. To distribute the traffic load, MLB algorithm modifies the handover region. If the handover region is reduced by MLB algorithm, some cell edge users are compulsively handed over to neighbor femtocell. In this paper, we analyze the relation between MLB performing period and performance indicators. For example throughput and blocking probability is reduced, if period is decreased. On the contrast, if period is increased, the number of handover frequency is decreased. Using this relation, we suggest the adaptive periodic MLB algorithm. This algorithm includes the advantage of both long period and short period MLB algorithm, such as high throughput, the small number of handover frequency, and low blocking probability.

BOXES-based Cooperative Fuzzy Control for Cartpole System

  • Kwon, Sung-Gyu
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.7 no.1
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    • pp.22-29
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    • 2007
  • Two fuzzy controllers defined by 2 input variables cooperate to control a cartpole system in terms of balancing as well as centering. The cooperation is due to the BOXES scheme that selects one of the fuzzy controllers for each time step according to the content of box that is established through the critic of the control action by the fuzzy controllers. It is found that the control scheme is good at controlling the cartpole system so that the system is stabilized fast while the BOXES develops its ability to select proper fuzzy controller through experience.

Fuzzy Learning Control for Ball & Beam System (볼과 빔 시스템의 퍼지 학습 제어)

  • Joo, Hae-Ho;Jung, Byung-Mook;Lee, Jae-Won;Lee, Hwa-Jo;Lee, Young
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • pp.439-443
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    • 1996
  • A fuzzy teaming controller is experimentally designed to control the ball k beam system in this paper. Although most fuzzy controllers have been built just to emulate human decision-making behavior, it is necessary to construct the rule bases by using a learning method with self-improvement when it is difficult or impossible to get them only by expert's experience. The algorithm introduces a reference model to generate a desired output and minimizes a performance index function based on the error and error-rate using the gradient-decent method. In our balancing experiment of the ball & beam system, this paper shows that the fuzzy control rules by learning are superior to the expert's experience.

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Adaptation Experience to Work of Nurses with Low Back Pain (요통을 가진 간호사의 근무 적응 경험)

  • Yang, Jin-Hyang
    • Korean Journal of Adult Nursing
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    • v.25 no.6
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    • pp.597-609
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    • 2013
  • Purpose: This study was to explore work experience among nurses with low back pain. Specific aims were to identify problems nurses face as workers at a hospital and how they interact with other workers. Methods: Grounded theory methodology was utilized. Data were collected from iterative fieldwork with individual in-depth interviews from 9 nurses with low back pain as key informants, and a head nurse and a charge nurse who had experiences working with nurses with low back pain as general informants. Results: Through constant comparative analysis, a core category emerged as "to make one's own ground". The process of "to make one's own ground" was identified as four categories: perception of limitations, intervening conditions, balancing limitations, and controlling limitations. Intervening conditions were identified as 'working conditions' and 'personal traits'. Conclusion: Findings of the study indicate that there is a need for health professionals and administrators to understand limitations to working experience among nurses with low back pain. In addition, institutional and psychological support program is needed to improve an adaptation to working environment among nurses with low back pain.

QoE-driven Joint Resource Allocation and User-paring in Virtual MIMO SC-FDMA Systems

  • Hu, YaHui;Ci, Song
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.9 no.10
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    • pp.3831-3851
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    • 2015
  • This paper is concerned with the problem of joint resource allocation and user-pairing in virtual MIMO SC-FDMA systems to improve service quality of experience (QoE). No-reference logarithmic model is introduced to quantify service experience for each user and the objective is to maximize sum of all user's mean of score (MOS). We firstly formulate the optimal problem into an S-dimensional (S-D) assignment problem. Then, to solve this problem, the modified Lagrangian relaxation algorithm is deduced to obtain the suboptimal result of joint user-paring and subchannel allocation. The merits of this solution are as follows. First, the gap between its results and the global optimal one can be quantified and controlled by balancing the complexity and accuracy, which merit the other suboptimal algorithms do not have. Secondly, it has the polynomial computational complexity and the worst case complexity is O(3LN3), where L is the maximum iteration time and N is the number of subchannels. Simulations also prove that our proposed algorithm can effectively improve quality of experience and the gap between our proposed and the optimal algorithms can be controlled below 8%.