• 한국학교ㆍ지역보건교육학회지
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• 제20권1호
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• pp.113-126
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• 2019

Objectives: The purpose of this study is to understand the relevance of chronic disease conditions and fall experience among people aged 65 and older. and use them as basic data to reduce the risk of falling. Methods: The study selected 26,122 men and 37,777 women aged 65 and over as final subjects of the study, using raw data from the Community Health Survey in 2015. The statistical analysis used SAS 9.4 USA. Results: About 20% of those aged 65 and older experienced a fall, with one in five elderly people experiencing a fall, and the ratio of men to women was 3:7, women higher than men. As the age grew, the lower the level of education, the more senior citizens who lived alone occurred falls. In addition, the incidence of falls was higher when the number of chronic diseases was more than three. The incidence of falls was 1.1-1.5 times higher depending on chronic diseases. Conclusion: The development of education and exercise programs for preventing fall of senior citizens aged 65 and older is required and further study is needed.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2021년도 춘계학술대회
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• pp.249-251
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• 2021

본 논문에서는 노령층 인구가 도보시 일어날 수 있는 낙상상황을 텐서플로워를 이용하여 인지하기 위한 시스템에 대하여 소개한다. 낙상감지는 고령자의 몸에 착용한 가속센서 데이터에 대해서 텐서플로워를 이용하여 학습된 LSTM(long short-term memory)을 기반하여 낙상과 일상생활을 판별한다. 각각 7가지의 행동 패턴들에 대하여 학습을 실행하며, 4가지는 일상생활에서 일어나는 행동 패턴이고, 나머지 3가지는 낙상시의 패턴에 대하여 학습한다. 3축 가속도 센서의 가공하지 않은 데이터와 가공한 SVM(Sum Vector Magnitude)를 이용하여 LSTM에 적용해서 학습하였다. 이 두 가지 경우에 대해서 테스트한 결과 데이터를 혼합하여 학습하면 더 좋은 결과를 기대할 수 있을 것으로 예상된다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.2451-2454
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• 2005

In recent years, the importance of the characterization of fall for a fracture prevention system keeps increasing since fracture from a fall can lead to serious health problems. Fall is one of the major sources which increase morbidity in elderly people. In terms of the cost and the influence to the quality of life, the most serious injury with hip fractures is caused by falls. The traditional methods in characterizing fall patterns have been mainly by the epidemiological surveys. With surveys, the exact data of fall patterns can not been acquired. In this paper, we measured and analyzed with the parameters related to fall pattern such as velocities and accelerations during the motion of falls using 3D motion capture program. We acquired the parameters of the fall pattern of intentional and unexpected fall. The result showed that the variation of velocity and acceleration during fall was very important in characterizing fall pattern, which of vital importance for the development of a fracture prevention system and for the safety of the elderly.

• 한국산학기술학회논문지
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• 제15권4호
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• pp.2142-2149
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• 2014

지역사회 노인의 요실금과 수면의 질이 낙상 효능감에 미치는 영향을 살펴보고자 하였다. 도시에 거주하는 65세 이상 노인 112명을 대상으로, 인구사회학적 특성과 낙상에 관한 정보, 요실금 증상, 수면의 질과 낙상 효능감에 대하여 조사하였고 연구기간은 2013년 1월 3일부터 1월 30일까지였다. 지난 1년동안 낙상 발생률은 40.2%였고, 2회 이상 낙상을 경험한 노인은 낙상 경험자의 26.7%로 나타났다. 주로 겨울(53.3%)과 오후(53.3%)에 거리(44.4%)에서 많이 넘어졌으며, 낙상의 원인은 미끄러진 경우가 37. 8%로 가장 높게 나타났다. 본 연구 변수의 회귀모형을 분석한 결과 유의한 것으로 나타났으며(F=5.71, p<.01), 모형의 설명력은 9. 6%이고 낙상 효능감에 가장 큰 영향을 미치는 요인은 수면의 질(${\beta}$=.24, p<.05)인 것으로 나타났다. 노인에게서 낙상은 건강한 생활을 유지하고 각종 안전사고와 밀접한 연관이 있다는 것을 고려하여 지역사회 노인의 낙상 효능감을 사정하는 것은 낙상을 예방하는데 필요할 것으로 사료된다.

• 디지털융복합연구
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• 제13권10호
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• pp.533-539
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• 2015

본 연구는 여성노인에게 적용한 복합하지근력운동프로그램이 노인의 낙상위험도에 미치는 영향을 알아 보기 위하여 W시 소재 복지관을 이용하는 여성노인 20명을 대상으로 운동그룹(EG:Exercise Group, n=10명, 평균나이:$69.6{\pm}2.2$), 운동프로그램에 참여하지 않은 통제군(CG:Control Group, n=10명, 평균나이:$71.3{\pm}4.6$)으로 나누어 배정하여 12주간 복합하지 근력운동프로그램을 실시하고 낙상위험도 검사를 위하여 BBS(Berg Balance Scale)와 OLST(One-Leg Stance Test)를 이용하여 적용한 결과 다음과 같은 결론을 얻었다. BBS 변화 결과 EG와 CG그룹간의 유의한 차이가 나타났고 OLST의 변화 결과 EG와 CG그룹간의 유의한 차이가 나타났다. 따라서 낙상의 위험도가 높은 노인을 대상으로 복합하지근력운동프로그램의 적용만으로도 낙상위험도에 긍정적인 영향을 미치는 것을 확인할 수 있다.

• The Journal of Korean Physical Therapy
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• 제26권6호
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• pp.430-435
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• 2014

Purpose: The objective of this study was a virtual reality-based balance training program effective for improvement in physical function, examined the balance ability and fall efficacy of elderly women with experienced falls, intending to examine the program's usefulness as an exercise program to prevent the recurrence of a fall. Methods: The participants were 30 elderly women aged 65 or older who met the conditions. The participants were randomly assigned to either a balance training group (BT) or a virtual reality-based balance training group (VT) and received the training three times per week, 30 minutes per day, for six weeks. To measure static balance, the Tetrax Portable Multiple System (Tetrax Ltd, Israel) were used. To measure dynamic balance, the Berg Balance Scale (BBS) and functional reach test (FRT) was used, and regarding fall efficacy, the Korean Fall Efficacy Scale (K-FES) was used. Results: Tetrax significantly improved after the intervention in both the BT group and the VT group (p<0.05). The comparison between the two groups was not significantly. BBS and FRT result significantly improved after the intervention in both the BT and VT groups (p<0.001), while K-FES was significantly ameliorated in the VT group only (p<.05). Comparing the groups, there were more significant changes in the BBS (p<0.05) and FRT (p<0.01) result of the VT group than the BT group. Conclusion: A virtual reality-based balance training program is considered to be usable as an exercise program to prevent recurrence of falls in elderly women.

• 성인간호학회지
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• 제15권3호
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• pp.432-440
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• 2003

Purpose: The purposes of this study were to examine 1) functional status at 2 months after hip fracture surgery 2) health care utilization after a fall episode and 3) fear of falling experienced during first 2 months after a fall episode. Method: With a convenient sample of 99 elderly from six university or general hospitals with hip fracture from a fall, data were collected at 2-3 days before discharge and at 2 months after hip fracture surgery. Result: 1) At 2 months after hip fracture from a fall, significant proportion (25.3%) of elderly was not able to walk indoors. 2) Average length of hospital stay was 27.6 days with a range of 8 to 86 days. About 51% subjects received physical therapy during hospital stay, and only 6.1% subjects received physical therapy following discharge from the hospital. 3) Significant proportion (72.7%) had fear of falling after the fall episode. About 51% reported that they restricted their activities because they had fear of falling. Conclusion: Fall is a dreaded event which result in loss of independence and restriction of activity. Development and application of fall prevention program is critical especially for those with risk factors of fall.

• 한국운동역학회지
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• 제31권3호
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• pp.189-198
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• 2021

Objective: The aim of this study is to investigate the effect of biomechanical variables on gait according to indoor and outdoor environmental conditions in elderly women at risk of falling. Method: 26 elderly women aged 70 years or older, and consisted of 13 elderly people with a walking speed of less 1.0 m/s and 13 people in the fall risk group as normal groups. Depending on the purpose of the study, physical examination and psychological questionnaire were prepared, and then walking was performed in an indoor/outdoor environment, and the gait pattern, muscle activity, and plantar pressure results were compared and analyzed in the elderly females through a 2 group × 2 environment 2-way repeted ANOVA analysis. Results: The gait variable showed an interaction effect the cadence. The muscle variables showed interaction effects in the rectus femoris and tibialis anterior muscles, and the interaction effects of the plantar pressure variables were confirmed in the forefoot and midfoot of the contact area, and the midfoot of the mean pressure. Conclusion: These results indicate that both groups are exposed to falls risk when gait in an outdoor environment, but the fall risk group has a higher risk of falls in both the gait pattern, muscle activity, and plantar pressure variables. The results of this study are considered to be helpful as basic data and development of exercise programs to prevent falls.

• Journal of information and communication convergence engineering
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• 제11권3호
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• pp.199-206
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• 2013

An emergency monitoring system for the elderly, which uses acceleration data measured with an accelerometer, angular velocity data measured with a gyroscope, and heart rate measured with an electrocardiogram, is proposed. The proposed fall detection algorithm uses multiple parameter combinations in which all parameters, calculated using tri-axial accelerations and bi-axial angular velocities, are above a certain threshold within a time period. Further, we propose an emergency detection algorithm that monitors the movements of the fallen elderly person, after a fall is detected. The results show that the proposed algorithms can distinguish various types of falls from activities of daily living with 100% sensitivity and 98.75% specificity. In addition, when falls are detected, the emergency detection rate is 100%. This suggests that the presented fall and emergency detection method provides an effective automatic fall detection and emergency alarm system. The proposed algorithms are simple enough to be implemented into an embedded system such as 8051-based microcontroller with 128 kbyte ROM.

• 전기학회논문지
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• 제57권10호
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• pp.1893-1895
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• 2008

In this paper, we investigated the maximum ankle joint plantarflexion moment(MPM) of young and elderly subjects during various modes of isokinetic contractions with special interest in the elderly females who were reported to have higher fall rate than the elderly males. Subjects include the young subjects(14 males: $22.7{\pm}2.5yrs$, 13 females: $20.5{\pm}1.3yrs$) and the elderly subjects(17 males: $65.8{\pm}10.5yrs$, 26 females: $71.4{\pm}5.2yrs$). The MPM was normalized by each subject's body weight. The MPM of elderly females was the weakest among the groups, particularly, at the eccentric contractions. The male-to-female ratio of MPM was greater in the elderly than in the young and the young-to-elderly ratio of MPM was greater in female than in male, both during the eccentric contractions. The result suggests that the decreased muscle force per body weight, especially at the eccentric contraction, may be one reason for the more frequent fall of the elderly female than the elderly male.