• 제목/요약/키워드: body balance

검색결과 1,183건 처리시간 0.023초

Biomechanical Analysis of Human Balance Control

  • Shin, Youngkyun;Park, Gu-Bum
    • 조명전기설비학회논문지
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    • 제28권3호
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    • pp.63-71
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    • 2014
  • A single-inverted-pendulum model is presented to simulate and predict the passive response of human balance control. This simplified biomechanical model was comprised of a torsional spring and damper, and a lump mass. An estimation of frequency response function was conducted to parameterize the complexity. The frequency domain identification method is used to identify the parameters of the model. The equivalent viscoelastic parameters of standing body were obtained and there was good conformity between the simulation and experimental result.

자세 균형 측정을 위한 디지털 경사계 설계 (A Design of Digital Inclinometer for Measuring Postural Balance (Preliminary Study))

  • 명현석;이효기;이경중;권오윤
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2006년 학술대회 논문집 정보 및 제어부문
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    • pp.238-240
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    • 2006
  • In this study, we designed a digital inclinometer to measure the angle and acceleration signals. Digital inclinometer consists of a tilt sensor, accelerometer, one-chip micro controller and BlueTooth module. Using the developed system, we made an experiment with Roll. The subject is laid on the Roll and rises each foot $90^{\circ}$ and $45^{\circ}$ up, and measures angle and acceleration signals with 100Hz sampling frequency. Through several tests, we could find the possibilities and usefulness which can evaluate normality / abnormality of body posture objectively.

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수분 대사 장애 질환의 병태 생리와 치료 (Pathophysiology and management of disorders in water metabolism)

  • 김동언
    • Clinical and Experimental Pediatrics
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    • 제50권5호
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    • pp.430-435
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    • 2007
  • Even though we drink and excrete water without recognition, the amount and the composition of body fluid remain constant everyday. Maintenance of a normal osmolality is under the control of water balance which is regulated by vasopressin despite sodium concentration is the dominant determinant of plasma osmolality. The increased plasma osmolality (hypernatremia) can be normalized by the concentration of urine, which is the other way of gaining free water than drinking water, while the low plasma osmolality (hyponatremia) can be normalized by the dilution of urine which is the only regulated way of free water excretion. On the other hand, volume status depends on the control of sodium balance which is regulated mainly by renin-angiotensin-aldosterone system, through which volume depletion can be restored by enhancing sodium retention and concomitant water reabsorption. This review focuses on the urine concentration and dilution mechanism mediated by vasopressin and the associated disorders; diabetes insipidus and syndrome of inappropriate antidiuretic hormone secretion.

자세 균형 측정을 위한 디지털 경사계 설계 및 평가 (Design and Evaluation of Digital Inclinometer for Measuring Postural Balance)

  • 명현석;이효기;이경중;권오윤
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2007년도 심포지엄 논문집 정보 및 제어부문
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    • pp.64-66
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    • 2007
  • In this paper, a digital inclinometer to measure the angle and acceleration signals of subject laid on Roll was designed. The designed system consists of a tilt sensor, biaxial accelerometer, microcontroller and BlueTooth module. The designed digital inclinometer was easy to handle and easy to wear. To evaluate the performance of the system, we measured simultaneously the angle and acceleration signals from the 3 subjects on the Roll with two instruments which are ZEBRIS and our system. The measured signals were processed by statistical method and then the correlation coefficient of 0.93 was shown. From the results, the designed digital inclinometer is shown to be useful in assessment of body movement.

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Study on the Regulation Methods of Meridian ki Depending on the Pathological State of 'Discordance between Water and Fire'

  • Sohn, In-Chu
    • 턱관절균형의학회지
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    • 제1권1호
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    • pp.23-27
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    • 2011
  • This study reviews and suggests the followings: 1) The balance and harmony between water and fire (ki and blood, yin and yang) is regarded as the basic condition of maintaining health in Oriental medicine. 2) Oriental medicine defines disease as the imbalance or disharmony of body. So the discordance between water and fire is in ill state, the coordination between water and fire is in healthy state. 3) Etiological factors and pathology are summarized by the conflict between vital ki and pathogenic factors, six exogenous factors, internal injury by seven emotions and the imbalance between yin and yang. 4) The regulation of meridian ki recovers the balance between water and fire, ki and blood using acupuncture, moxibustion, cupping therapy, herbal medicine and physical and breathing exercise and massage which is based on the principle of controlling ki and spirit.

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FCST의 초기 역사 (FCST, Its Foundation and Early History)

  • 인창식;이영준
    • 턱관절균형의학회지
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    • 제1권1호
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    • pp.9-12
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    • 2011
  • Objectives: Functional Cerebrospinal Therapy (FCST) is a rather new physiologic therapeutics. It has passed about two decades since its basic idea was founded. This study briefly reviewed its early history. Methods: The first FCST patient was a stroke patient in the year 1992. Basic ideas of FCST was devised one by one and later developed into a systematic clinical application. The first official lecture was held in the year 2004. Yinyang balance in the meridian-system-based network over the whole body was a mainstay idea. Results: As other stories on newly-developed therapeutics, there was an effort to make a breakthrough for difficult clinical problems, and followed by a creative initial idea along with incessant refinement in the early history of FCST. Conclusions: Patient-centered approaches was a mainspring in the development and refinement of FCST. History of FCST hereafter may well follow the trace.

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차체용 드로우 다이의 블랭크 홀더 굽힘 변형 해석 (Analysis on the Bending Deflection of the Blank Holder in Automotive Body Panel Draw Die)

  • 인정제;신용승;김헌영;김재우;송명환;박진수
    • 한국공작기계학회:학술대회논문집
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    • 한국공작기계학회 2000년도 추계학술대회논문집 - 한국공작기계학회
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    • pp.249-254
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    • 2000
  • The contact forces between die components for the drawing of large size automotive panels introduce elastic deflections of the die components. Due to the deflections, the gap between blank holder and die varies locally resulting in nonuniform material flow. Such a nonuniform die gap usually requires correcting operation, so called die spotting, which is time consuming trial and error process. To reduce the die spotting time, the optimization of the blank holder bending deflection is needed. In this paper, we implemented an analysis procedure to predict the blank holder deflection. The analysis procedure and design of experiments techniques are applied to the optimization of balance block heights. The optimization results can be used as guidelines in actual die spotting process.

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하천환경 모니터링을 위한 취수보의 수문특성 분석 (Analysis of Rubber-dam hydrologic Character for the River Environment Monitoring)

  • 서규우;김대곤;김수현
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2004년도 학술발표회
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    • pp.1326-1330
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    • 2004
  • This study analyzes the rubber-dam of hydrologic character to be located in a Nagdong-river main stream in Dasamyeon Juggogli of the Dae-gu global city lot the river environment monitoring. The purpose of this research investigates the influence according to the rubber-dam install scientificly. A result natural disposition, prepare the gauge to matte the width of the area of the understanding and the computation of the rating which Apply is possible. Into the result of this research, $Q=898.8h^2-26126h+189886$ edge was computed to the rating. Also this study use the now rate to get for an upside expression and analysis a water balance. Through the officer to be efficient a hereafter seminar zero and processing of the data to be acquired, the supplementation so that this study can share the data to the online. High practical use of the The self-governinig body of the data and data confirmed report which loses in the trust will be achieved.

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자세동요에 있어 선행적 자세적응이 균형수행력에 미치는 영향 (The effect of Anticipatory Postural Adjustment on Balance Performance in Postural Disturbance)

  • 채윤원;김명훈;조병모
    • The Journal of Korean Physical Therapy
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    • 제12권1호
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    • pp.65-71
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    • 2000
  • This study investigated the effect of anticipatory postural adjustment on balance performance in postural disturbance. Any action performed by standing subject is generally accompanied by compensatory postural activities, which reduce or abolish the postural disturbance generated by the movement and keep the subjects' center of gravity within the supporting base. These Postural activities arc triggered by either anticipatory and feedback postural control. We studied the difference of anticipatory and feedback postural control in postural disturbance. The subjects were standing on a foot plate with eyes closed, holding a lead of $5\%$ of their own body weight in their hands. The condition of anticipatory postural adjustment was applied voluntarily releases the a load. The condition of feedback postural control was applied that the load was unpredictably removed. We concluded that anticipatory postural adjustment becomes more efficient to postural performance in postural disturbance.

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턱관절균형의학의 기본 진단검사법 (Diagnostic Evaluation Methods in TMJ Balancing Medicine)

  • 이영준;인창식
    • 턱관절균형의학회지
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    • 제3권1호
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    • pp.27-30
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    • 2013
  • Diagnostic evaluation methods frequently adopted in Temporomandibular Balancing Medicine (TBM) are briefly reviewed as to their basic concepts and procedures. TBM diagnostic evaluation methods may be classified into direct and indirect ones. Indirect methods are to observe any change in the manifestations with regard to the (1) posture, (2) pain, (3) muscle strength, and (4) stretching. Direct methods are to evaluate through (1) cervical palpation test, (2) restricted cervical rotation test, and (3) lateral cervical tension test. These methods may provide clinicians valuable information on the current yinyang balance and potential therapeutic factors in relation with the temporomandibular joint, a meridian system, and the whole body.

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