• Korean Journal of Social Welfare
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• v.67 no.2
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• pp.183-202
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• 2015

This study examined the relationships among fear of falling, ADL/IADL disability, and depressive symptoms among Korean community-dwelling middleaged and older adults based on the disablement process model. The panel data from the Korean Longitudinal Study of Aging(KLoSa) were used to test whether fear of falling affects disablement process as a risk factor and an exacerbator. The results of path analysis showed that middle-aged and older adults who reported fear of falling were more likely to experience ADL/IADL disability and depressive symptoms, and fear of falling influenced depressive symptoms through increasing the risk of ADL/IADL disability. In addition, fear of falling exacerbate the risk of ADL/IADL disability among middle-aged and older adults who had chronic illnesses. The results indicated that fear of falling is not only risk factor but also excerbator in predicting ADL/IADL disability and depressive symptoms prospectively.

• Women's Health Nursing
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• v.15 no.4
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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.

• Physical Therapy Korea
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• v.9 no.3
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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.

• Korean Journal of Food Science and Technology
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• v.25 no.5
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• pp.558-564
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• 1993

The drying characteristics of fluidized bed drying with different drying conditions using naked barley were carried out. This fluidized drying mechanism of naked barley was consisted of consecutive two falling rate parts, first falling rate period and second falling rate period without showing constant rate period. The drying rate constant was increased with decreasing charged amount and relative humidity and increasing air temperature and air velocity. Since the drying rate constant expressed by Arrhenius type equation in the falling rate period showed good linearity, the falling rate period was considered as the controlling step. The activation energy of first falling step was 1,900 cal/gmol, while for second falling step the values showed 2,500 cal/gmol.

• Journal of muscle and joint health
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• v.16 no.1
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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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• v.31 no.3
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• pp.539-551
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• 2011

Purpose: This study was to investigate the factors influencing the fear of falling in frail elderly according to gender. Methods: The participants were the elderly over 65 years who were registered for case management for frail elderly of 253 public health centers. For data analysis, descriptive statistics and multiple logistic regression were performed using SPSS version 18.0. Results: Prevalence of fear of falling and the influential factors were different according to gender. 75.3% of the male elderly, 85.4% of the female elderly had the fear of falling. The predictors for men's fear of falling were static balance ability, experiences of previous falls, whereas for women static balance ability, TImed up and go, depression, experiences of previous falls, educational status were significant. Conclusion: Fear of falling and the influential factors of the frail elderly according to gender should be assessed regularly to find the high risk group. On the basis of that, prevention program for fear of falling and fall need to be developed and provided, which should be gender sensitive.

• Journal of Institute of Control, Robotics and Systems
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• v.15 no.3
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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.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2002.05a
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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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• v.8 no.1
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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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• v.11 no.2
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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.