• 한국사회복지학
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• 제67권2호
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• pp.183-202
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• 2015

본 연구는 장애과정모델을 이론적 토대로 하여 중노년기에 낙상두려움이 위험요인 혹은 악화요인으로써 ADL/IADL장애와 우울증상에 영향을 미치는지를 검증하기 위하여 한국고령화패널조사를 통해 수집된 2차 자료(2006년, 2008년, 2010년)를 이용하여 종단연구모형을 검증하였다. 분석 결과를 살펴보면, 먼저 낙상두려움은 ADL/IADL장애와 우울증상에 직접적인 영향을 미쳤고, ADL/IADL장애를 통해 우울증상에 영향을 미치는 간접적인 영향 또한 유의미한 것으로 나타났다. 다음으로 낙상두려움이 악화요인으로써 역할을 하는지 살펴본 결과, 중노년기에 신체질환의 경험과 함께 낙상두려움을 가진 경우에는 ADL/IADL장애발생의 위험성이 증가하는 것으로 나타나, 낙상두려움은 장애과정에서 있어서 위험요인이자, 악화요인으로써도 작용할 수 있는 것으로 나타났다. 분석 결과를 바탕으로 중노년기의 ADL/IADL장애와 우울증상을 예방하기 위하여 낙상두려움 관련한 적극적인 개입방안 마련이 필요함을 논의하였다.

• 여성건강간호학회지
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• 제15권4호
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• pp.344-352
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• 2009

Purpose: The study was to identify influencing factors on fear of falling in postmenopausal women. Methods: With a correlational survey design, 125 postmenopausal women were recruited at the D metropolitan city by a convenience sampling. Fracture risk status was assessed by bone mineral densities (BMD) at lumbar and femur with DEXA method. A structured study questionnaire was used to measure demographic variables, osteoporosis self-efficacy, and fear of falling. Results: Mean age of the subjects was 59 years old and duration since menopause was 9.55 years. Twenty six percent of the subjects belonged to osteoporotic group in fracture risk status. Mean score for fear of falling was 16.10 (SD=5.18) indicating low level, and osteoporosis self-efficacy for exercise and diet was 44.76 (SD=7.41), indicating mid-range level. Factors influencing the fear of falling was longer time since menopause ($\beta=.30$), lower score of osteoporosis self-efficacy for exercise ($\beta=-.26$), poor health perception status ($\beta=-.16$), and presence of chronic disease ($\beta=.16$), and the explained variance was 20%. Conclusion: Although the level of fear of falling was yet low in postmenopausal women, women who had lower self-efficacy of osteoporosis for exercise and poorer health perception felt greater fear of falling. Therefore, an educational program specific to improve osteoporosis self-efficacy and reduce the fear of falling is needed for improving postmenopausal women's psychosocial well-being.

• 한국전문물리치료학회지
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• 제9권3호
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• pp.47-65
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• 2002

This study examined the correlations among the Berg Balance Scale, which is a clinical tool used to evaluate balance ability, spatiotemporal parameters of gait, and falling; determined the parameters most closely related to falling; and identified a discriminatory parameter and its predictability. Thirty-four subjects aged 72 to 92 years participated in this study. Following a questionnaire survey about falling, the Berg Balance Scale and spatiotemporal parameters of gait were measured. The results revealed that the incidence of falls increased with aging and an accompanying reduction in the flexion range of motion of the hip joint. The gait characteristics of elderly people who fell easily included a slower walking speed, shorter stride, and longer stance time than other elderly. When the cutoff score was set at 45, the Berg Balance Scale was able to identify correctly those individuals who truly have experience of falling than when the cutoff score was set at 39. But when the cutoff score was set at 39, the scale's specificity identifying correctly those individuals who truly have not experience of falling was higher than at the cutoff score of 45. Therefore, the Berg Balance Scale is an appropriate screening method in a clinical setting for the early detection of elderly people at risk of falling. In conclusion, elderly people with a Berg Balance Scale score. below 45 are the most likely to fall owing to their decreased balance ability.

• 한국식품과학회지
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• 제25권5호
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• pp.558-564
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• 1993

쌀보리를 시료로 하여 건조조건을 다르게 하여 유동층 건조특성에 영향을 미치는 외부요인에 대해서 조사한 결과를 요약하면 다음과 같다. 쌀보리의 유동층건조는 항률건조기가 없이 감률건조 1단계, 감률건조 2단계의 두 단계로 일어남을 알 수 있었다. 또한 건조속도상수는 충전량이 적을수록, 공기속도가 클수록, 공기온도가 높을수록, 상대습도가 낮을수록 켰으며, 감율건조단계에서의 건조속도상수는 Arrhenius형의 plot에서 좋은 직선관계를 나타내어 이 단계가 활성화 과정임을 알 수 있으며, 감률건조 제 1단계의 활성화 에너지는 1900ca1/gmol, 감률건조 제 2단계의 활성화 에너지는 2500ca1/gmol을 각각 나타내었다.

• 근관절건강학회지
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• 제16권1호
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• pp.5-12
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• 2009

Purpose: The purpose of this study was to investigate bone mineral density(BMD) and fear of falling and falls efficacy in the middle and old aged women over 50 years. Methods: The subjects consisted of 409 women. One-way ANOVA, Pearson's correlations and multiple regression were used to test the BMD, fear of falling and falls efficacy scale by using SPSSWIN 12.0. The BMD of the calcaneus were measured with peripheral dual energy x-ray absorptiometry(DEXA). Results: The average age was 63 years old and the average T-score was -3.21 in patient with osteoporosis, -1.72 with osteopenia, and .13 with normal. There were significant differences in the status of the BMD according to age(p=.000), height(p=.000), weight(p=.000), married status(p=.000), age of menarche(p=.002), and menopause(p=.002). The fear of falling was related with falls efficacy(r=-.247, p=.01), BMD(r=-.337, p=.01). Falls efficacy($\beta$=-.21, p=.000)and BMD($\beta$=-.26, p=.000) were predicting variables of fear of falling. The model explained 13% of the variance in fear of falling(F=27.38, p=.000). Conclusion: Fear of falling and falls efficacy were related with the bone mineral density. Falls efficacy and BMD may be useful for the predicting fear of falling for women in middle and old age. Further studies with assessment of fall-related risk-factors and a longitudinal study are necessary to assess with falls efficacy, and BMD with age.

• 한국노년학
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• 제31권3호
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• pp.539-551
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• 2011

본 연구는 허약노인의 성별에 따른 낙상두려움, 건강상태, 규칙적 운동 횟수 등을 비교하고 낙상두려움에 영향 미치는 요인을 규명하고자 하였다. 본 연구는 253개 보건소의 2009년 맞춤형 방문건강관리사업 중에서 허약 노인 사례관리를 위해 수집된 65세 이상 노인들의 기초자료를 이용하였다. 연구대상자는 총 3903명(남 259명, 여 3644명)으로, 평균 연령은 남성이 75.17세, 여성이 평균 77.54세였으며, 남성의 75.3%, 여성의 85.4%가 낙상 두려움이 있다고 응답하였다. 저소득층 허약노인의 낙상두려움에 영향을 미치는 요인은 남성의 경우 정적 균형감, 과거 낙상경험이었으며, 여성 노인의 경우 정적 균형감, 복합적 이동능력, 우울과 과거 낙상경험, 교육 수준으로 나타났다. 본 연구결과를 토대로 허약노인의 낙상두려움 여부 및 영향요인을 주기적으로 평가하여 고위험군을 발견하고, 낙상 및 낙상두려움 발생을 예방하기 위해 이들을 대상으로 정서적 접근을 포함한 다요인적 통합 프로그램을 성별에 따른 맞춤형으로 개발, 제공할 것을 제안한다.

• 제어로봇시스템학회논문지
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• 제15권3호
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• pp.280-285
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• 2009

This paper introduced an automatic generation method of falling motions for humanoid robots to minimize a damage. The proposed approach used a PGA based optimization technique to find a set of joint trajectories which minimize a damage of the falling over and down. Injection-migration PGA technique is introduced and compared with EMO and various migration topologies. To verify the proposed method, experiments for falling motions were executed for Sony QRIO robot in Webots simulation environments.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2002년도 춘계학술대회 논문집
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• pp.745-748
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• 2002

Many malfunctions take place in container crane spreader due to impact. So we designed a 2DOF hydraulic impact absorbing system and studied the change of impulse with respect to the variation of falling height and weight. The falling height becomes higher than 1m and the falling weight goes up heavier than 100kg, the impact absorbing rate was lower. When spreader is bumped against container and impulse force concentrates on one point, impact absorbing equipment would not be operated properly and make some trouble.

• KSTLE International Journal
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• 제8권1호
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• pp.16-20
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• 2007

This study introduces a new approach to a falling ball viscometer by using a high speed motion camera to measure the viscosity of both Newtonian and non-Newtonian fluids from the velocity-time data. This method involves capturing continuous photographs of the entire falling motion of the ball as the ball accelerates from the rest to the terminal velocity state. The velocity of a falling ball was determined from the distance traversed by the ball by examining video tape frame by frame using the marked graduations on the surface of the cylinder. Each frame was pre-set at 0.01. Glycerin 74% was used for Newtonian solution, while aqueous solutions of Polyacrylamide and Carboxymethyl Cellulose were for non-Newtonian solutions. The experimental viscosity data were in good agreements with the results obtained from a rotating Brookfield viscometer.

• International Journal of Safety
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• 제11권2호
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• pp.1-4
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• 2012

The falling accidents have increased in the structure and heavy industries. Therefore, a various falling prevention systems with safety block and lanyard have been supplied in order to prevent falling accidents and acquire the long life and cost down for the maintenance. However, there are not the reliable and domestic the falling prevention system until now. Almost systems were imported from U.S.A, Japan, U.K and Germany. The structural safety of the imported safety block is satisfied sufficiently, but it has heavy weight due to the cover with the aluminum and thickness. So, many workers are not feeling themselves. Thus, the aim of this work is to develop a commercial safety block that has a light weight and strength. And the cost efficiency of the system and safety for workers also will be improved remarkably.