• The Journal of Korean Physical Therapy
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• 제22권5호
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• pp.57-61
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• 2010

Purpose: The purpose of this study was to identify the effect of active foot arch support on the muscles of lower extremity electromyographic activity during squat exercise in persons with pronated foot. Methods: The study subjects were 16 persons with pronated foot. They have no history of surgery in lower extremity and trunk and limitation of range of motion or pain when performing squat exercise. Each subject was measured the navicular drop (ND) to determine the pronated foot. And then the subjects were asked to perform three repetitions of a $90^{\circ}$ knee flexion squat in both conditions which are 1) preferred squat and 2) squat with active foot arch support. Results: Paired t-test revealed that squat with active foot arch support produced significantly greater EMG activities in abductor hallucis (p=0.00), proneus longus (p=0.03) and gluteus medius (p=0.04) than preferred squat. But the EMG activities of tibialis anterior, vastus medialis oblique and vastus lateralis were not showed significantly different between the both squat conditions. Conclusion: The findings of this study suggest that active foot arch support during squat increase the activities of lower extremity muscles which are the abductor hallucis, proneus longus and gluteus medius. Also, the abductor hallucis which is one of the planter intrinsic muscle and peroneus longus play a role in support of the foot arch and active foot arch support induced the increase of the activity of gluteus medius. Therefore active foot arch support can change the lower extremity biomechanics as well as passive foot support such as foot orthotics and taping.

• 대한간호학회지
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• 제33권8호
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• pp.1093-1110
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• 2003

Purpose. The number of elders in institutions has increased as family supporting systems have changed in Korea. The purpose of this study were to understand the life satisfaction among elders in institutions and to identify the factors influencing on life satisfaction. Methods. The instruments used were Yun(1982)'s scale modified Memorial University of Newfoundland Scale for Happiness(MUNSH) in life satisfaction, ADL and IADL in activity level, Self-rating Depression Scale(SDS) in depression and Norbeck Social Support Questionnaire(NSSQ) scale in social support. Also, Perceived health status was measured by Visual Graphic Rating Scale. The subject of this study is 107 cognitively intact and ambulatory elders in 7 institutions in Daegu city and Kyungpook province. The data have been collected from May 1 to June 30, 2001. For the analysis of collected data, frequency analysis, mean, standard deviation, Pearson's correlation and stepwise multiple regression analysis were used for statistical analysis by SPSS win(version 9.0) program. Results. Life satisfaction for the elders in institutions showed negative correlation with SDS, and positive correlation with activity level. The regression form of the stepwise multiple regression analysis to investigate the influencing factors of life satisfaction for the elders in institutions was expressed by y =90.988-0. 733x1-0.188x2-0.069x3-0.565x4 (xl: SDS x2: Social support x3: Activity level x4: Monthly pocket Money) and 57.9% of varience in life satisfaction was explained by the model. Conclusion. The factors influencing on life satisfaction among the elders in institutions were SDS, social support, activity level and monthly pocket money. According to the results of this study, depression, social support and activity level are considered the prime causal factors for life satisfaction.

• 사회복지연구
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• 제42권3호
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• pp.355-379
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• 2011

본 연구의 목적은 노인 집단과 장애인 집단의 삶의 질을 비교하여 그 유사점과 차이점을 밝히고자 하는 것이다. 이를 위해 노인 113명과 장애인 107명에게 인구사회학적 변수와 사회적 지지, 사회활동참여, 일상생활능력, 자기효능감, 삶의 질로 구성된 설문지를 이용하여, 그 변수들 간의 실증적 인과관계를 분석하고자 하였다. 자료분석에는 SPSS 14.0과 AMOS 7.0을 사용하여 구조방정식모형 분석을 실시하였다. 연구결과 첫째, 노인 집단과 장애인 집단 모두에서 삶의 질과 상관이 높은 변수는 자기효능감과 사회활동참여이었으며, 자기효능감에서 상관이 높은 변수는 삶의 질과 사회활동참여로 나타났다. 둘째, 노인 집단과 장애인 집단 간에 유의미한 차이를 보인 변수는 사회활동참여와 일상생활능력이었다. 셋째, 노인 집단에서 사회적 지지, 사회활동참여, 일상생활능력이 자기효능감에 유의미한 영향을 미쳤으며, 삶의 질과 관련하여서는 모든 변수들이 유의미한 영향을 주는 것으로 나타났다. 그러나 장애인 집단에서는 사회적 지지는 자기효능감에 또한 사회적 지지, 자기효능감은 삶의 질에 유의미한 영향을 미치지 않는 것으로 나타났다. 이러한 연구결과를 토대로 연구의 의의와 그 시사점을 논하고, 후속 연구를 위한 제언을 제시하였다.

• 한국인구학
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• 제30권2호
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• pp.23-44
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• 2007

본 연구는 유임금 노동, 자원봉사, 손자녀 양육과 같은 대표적인 생산적 활동에 참여하는 여성 노인을 대상으로 생산적 활동과 이에 대한 가족의 지지가 심리적 안녕감에 미치는 영향을 파악하고자 실시되었다. 상기한 활동별로 각 100명씩 총 300명을 면접 조사하였는데, 이 중 자원봉사자의 심리적 안녕감이 가장 높았으며, 활동시 가족으로부터 받는 지지는 손자녀를 돌보는 노인이 가장 많았다. 또한 이들의 안녕감을 설명하는 변인을 유형별로 살펴보면 유임금 노동을 하는 여성 노인의 경우 교육 수준이 높을수록, 활동에 대한 금전적인 보상이 적을수록, 심리적 안녕감이 높았다. 자원봉사를 하는 여성 노인은 활동에 대한 만족도가 높을수록, 활동에 대해 가족으로부터 도구적 지지를 많이 받을수록, 안녕감이 높은 것으로 나타났다. 그리고 손자녀를 양육하는 여성 노인은 배우자가 있는 경우, 총가계소득이 높을수록, 활동에 대한 금전적인 보상이 많을수록, 가족으로부터 활동에 대한 정서적 도구적 지지를 많이 받을수록, 심리적 안념감이 높았다. 본 연구는 여성 노인을 생산적 활동의 주체로서 조명한다. 그리고 이들이 행하는 생산적 활동들을 종합, 비교하여 살펴보았으며, 이를 통해 여성 노인의 심리적 안녕감을 고양할 수 있는 토대를 마련하였다는 점에서 연구의 의의가 있다.

• 가족자원경영과 정책
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• 제25권4호
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• pp.43-54
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• 2021

본 연구는 치매 노인을 돌보는 노년기 배우자가 지각한 돌봄부담과 사회적지지가 생활만족도에 미치는 영향과 사회적지지의 조절효과를 탐색하는데 그 목적이 있다. 이를 위해 서울과 경기도 지역 재가방문요양센터의 치매 노인을 돌보는 만60세 이상 배우자 165명을 조사대상으로 분석하였다. 분석결과는 다음과 같다. 첫째, 치매 노인을 돌보는 배우자의 전체 돌봄부담은 3.76점(SD=.57)으로 중앙값보다 약간 높은 수준을 나타냈다. 사회적지지의 경우 비공식적지지는 2.65점(SD=.78), 공식적지지는 2.60점(SD=.77)으로 중앙값 보다는 낮게 나타났다. 생활만족도는 3.11점(SD=.78)으로 중앙값 보다 약간 높은 수준을 보였다. 둘째, 치매 노인 배우자의 주관적 건강상태, 소득수준, 사회활동 부담, 비공식적지지가 생활만족에 영향을 미치는 것으로 나타났다. 즉, 치매 노인 배우자의 주관적 건강상태가 좋을수록, 소득수준이 높을수록 그리고 사회활동 부담이 낮을수록, 비공식적지지가 높을수록 생활만족도가 높게 나타났다. 셋째, 사회활동 부담과 비공식적 지지 상호작용 항이 유의미하게 나타났다. 따라서 치매 노인에 대한 사회활동 부담과 생활만족도와의 관계에서 비공식적지지는 조절효과가 있는 것으로 나타났다. 즉, 치매 노인 배우자가 사회활동 부담을 경험하여도 비공식적지지를 많이 사용할수록 생활만족도가 감소하는 정도가 줄어드는 것으로 나타났다.

• 대한가정학회지
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• 제45권4호
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• pp.29-42
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• 2007

The purpose of this study is to investigate the leisure and social support types which affect elderly depression. The study sample comprised 275 cases, and the analysis was performed by t-test, ANOVA, multiple regression and stepwise regression on SPSS ver. 10.0. The following three principle results were obtained: First, the types of leisure and social support differed according to domographic profiles. Second, among 6 sub-factors of leisure type, sports and viewing impressions activities contributed positively to elderly depression, as did emotional and appraisement supports among 4 sub-factors of social support. Third, stepwise regression analysis, conducted to determine the effect weights of factors of leisure types and social supports, showed that emotional support, social relationships activity, and viewing impressions activity strongly affected elderly depression in the order listed. Based of these results, the study suggested methods for developing an active leisure activities program which is necessary to minimize elderly depression.

• 웰빙융합연구
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• 제5권1호
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• pp.31-35
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• 2022

Purpose: This study was conducted to investigate the effects of change in the unstable support surface location during bridge exercise on the muscle activity of erector spinae and gluteus maximus. Research design, data and methodology: 12 healthy participants aged 23.32 ±1.02 were measured muscle activities of erector spinae and gluteus maximus during bridge exercise and compared between the exercise conditions; unstable support surface located on upper back and feet during bridge exercise. Paired t-test was performed to identify whether there was a significant difference in the muscle activities between the exercise conditions. Results: As a result, even though higher levels of the averaged muscle activities of both erector spinae and gluteus maximus during exercise in unstable support surface located on feet than upper back were observed, no significant differences were found. Conclusions: The change of unstable support surface location during bridge exercise for low back pain rehabilitation would be more appropriate to be used to increase levels of tension of muscle activities and train fine motor control rather than to strengthening muscle strength.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2013년도 제44회 동계 정기학술대회 초록집
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• pp.261-261
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• 2013

The smart design of nanocatalysts can improve the catalytic activity of transition metals on reducible oxide supports, such as titania, via strong metal-support interactions. In this work, we investigatedtwo-dimensional Pt nanoparticle/titania catalytic systems under the CO oxidation reaction. Arc plasma deposition (APD) and metal impregnation techniques were employed to achieve Pt nanoparticle deposition on titania supports, which were prepared by multitarget sputtering and sol-gel techniques. APD Pt nanoparticles with an average size of 2.7 nm were deposited on sputtered and sol-gel-prepared titania films to assess the role of the titania support on the catalytic activity of Pt under CO oxidation. In order to study the nature of the dispersed metallic phase and its effect on the activity of the catalytic CO oxidation reaction, Pt nanoparticles were deposited in varying surface coverages on sputtered titania films using arc plasma deposition. Our results show an enhanced activity of Pt nanoparticles when the nanoparticle/titania interfaces are exposed. APD Pt shows superior catalytic activity under CO oxidation, as compared to impregnated Pt nanoparticles, due to the catalytically active nature of the mild surface oxidation and the active Pt metal, suggesting that APD can be used for large-scale synthesis of active metal nanocatalysts.

• 대한간호학회지
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• 제23권2호
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• pp.207-223
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• 1993

Inpatients are mostly occupied in bed with restricted activity, nearly all patient populations are at risk for the occurrence of skeletal muscle atrophy due to decreased level of activity. Restriction of mobility is far greater in pediatric patients compared with adult patients since almost all the activities of daily living is performed by parents or caregivers. It could be assumed that pediatric patients are more vulnerable to skeletal muscle atrophy than adult patients, however, there have been no attempts to reduce the atrophy of developing muscle. Therefore it is important to determine the effect of exercise in developing muscle during decreased activity. The purpose of this study was to determine the effect of periodic weight support during hindlimb suspension on the mass and cross-sectional area of Type I and II fibers in developing soleus(Type I ) muscle. To examine the effectiveness of periodic weight support activity in maintaining mass and fiber size. the hindlimb of young female Wistar rats was suspended(HS) and half of these rats walked on a treadmill for 45min / day(15min every 4h) at 5m / min at a 15 grade(HS-WS). After 7days of hindlimb suspension, soleus wet weight was 28. 57% smaller and relative soleus weight was 28. 21% smaller in comparison with con-trol rats (p〈0.05) Soleus wet weight and relative soleus weight increased by 67.72% and 71.43% each with periodic weight support activity during hindlimb suspension (p〈0.01, p〈0.005), moreover soleus wet weight and relative soleus weight of the HS -WS rats were greater than those of the control group. No change was observed in fiber type percentage of the developing soleus muscle after 1 week of hindlimb suspension plus weight support activity. Type I and II fiber cross-sectional areas of the developing soleus muscle were 50.45% and 43.39% lower in the HS group than in the control group (p〈0.0001), type I and II fiber cross-sectional areas of the developing soleus were 24.49% and 29.93% greater in the HS - WS group than in the HS rats (p〈0.0001), whereas Type I and II fiber cross-sectional areas of HS - WS group were less than those of the control group, The results suggest that periodic weight support activity can ameliorate developing soleus muscle atrophy induced by hindlimb suspension, even in type II fibers that would not have been expected to be recruited by this type of neuromuscular demand. Clinical experimental study is needed to deter-mine the effect of periodic weight bearing exercise on developing atrophied leg muscle based on these results.

• 대한화학회지
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• 제58권6호
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• pp.543-552
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• 2014

A quantitative structure activity relationship (QSAR) study is performed for modeling and prediction of oral bioavailabilities of 216 diverse set of drugs. After calculation and screening of molecular descriptors, linear and nonlinear models were developed by using multiple linear regression (MLR), artificial neural network (ANN), support vector machine (SVM) and random forest (RF) techniques. Comparison between statistical parameters of these models indicates the suitability of SVM over other models. The root mean square errors of SVM model were 5.933 and 4.934 for training and test sets, respectively. Robustness and reliability of the developed SVM model was evaluated by performing of leave many out cross validation test, which produces the statistic of $Q^2_{SVM}=0.603$ and SPRESS = 7.902. Moreover, the chemical applicability domains of model were determined via leverage approach. The results of this study revealed the applicability of QSAR approach by using SVM in prediction of oral bioavailability of drugs.