• 대한의용생체공학회:의공학회지
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• 제38권5호
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• pp.232-236
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• 2017

In this study, We investigated the effect of foot cooling on the reduction of body temperature after hard exercise at the high temperature of $40^{\circ}C$. We performed a total of 30 subjects, and the subjects performed treadmill exercise for 30 minutes. We produced the cooling device to cool the foot using Peltier module. After the end of the exercise, We performed normal recovery method and cooling recovery method(one foot, both feet) for 1 hour on the same indoor environmental conditions and confirmed the change of body temperature of subjects. The results of deep body temperature measurement showed average $38.78{\pm}0.22^{\circ}C$ to $38.54{\pm}0.15^{\circ}C$ when the normal recovery method was performed. Cooling recovery method on one foot showed average $38.69{\pm}0.14^{\circ}C$ to average $38.06{\pm}0.17^{\circ}C$ and Cooling recovery method on both feet showed average $38.69{\pm}0.15^{\circ}C$ to average $37.84{\pm}0.21^{\circ}C$. There was a significant difference between the normal recovery method and the one foot cooling recovery method(p < .05), there was a significant difference between the normal recovery method and the both feet cooling recovery method(p < .05) and there was a significant difference between the one foot cooling recovery method and the both feet cooling recovery method(p < .05). Body temperature showed the lowest decrease rate when the normal recovery method was performed, and body temperature showed the highest decrease rate when the both feet cooling recovery method was performed. Therefore, recovery of cooling on the foot after hard exercise have decreased body temperature, delay fatigue in the body, and will be contributed to improvement of athlete performance.

• 재활간호학회지
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• 제17권2호
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• pp.64-71
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• 2014

Purpose: The purpose of this study was to identify the quality of recovery and influential factors on the quality of recovery after cardiac surgery. Methods: 198 patients undergone cardiac surgery were asked to fill in a self-reported questionnaire about the quality of recovery, anxiety, depression including social support at discharge. The collected data were analyzed with mean, standard deviation, correlation and stepwised multiple regression. Results: The mean scores of quality of recovery at discharge after cardiac surgery was 2.04 on a 3 point scale. Influential factors on the quality of recovery after cardiac surgery were depression(p=.001) and anxiety(p=.027), which disclosed 44.2% of explanation. Depression was the most influential factor. Conclusion: The influential factors on the quality of recovery at discharge after cardiac surgery were depression and anxiety. More studies will be required to reduce depression and anxiety in patients undergone cardiac surgery.

• 자원리싸이클링
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• 제24권4호
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• pp.12-21
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• 2015

일반적으로 구리제련 슬래그내 구리함량은 0.5-3.7% 혹은 그 이상의 높은 비율로 포함되어 있며, 슬래그내 구리회수에 대한 대표적인 방법으로는 부유선별, 침출 그리고 배소가 있다. 본 연구에서는 부유선별법에 의한 구리 회수방법을 검토하였으며, 잔세이트포수제를 이용한 황화부선을 수행하였다. 산성과 알칼리 조건에서 부유선별 특성을 관찰하였으며, pH 4 에서 구리회수율 50%, pH 11 에서 구리회수율 67%로 나타났으며, 특히 pH 11에서는 $100{\mu}m$ 이상의 입자가 정광으로 부유되어 회수율이 상대적으로 높게 나타나는 경향을 보였다. 슬래그 입도를 200 mesh 이하로 분쇄하여 단체분리도를 향상시켜 pH조건별 부유선별 실험을 수행한 결과, 회수율이 78 - 83%까지 향상되는 것을 확인할 수 있었다.

• The Korean Journal of Pain
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• 제29권2호
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• pp.86-95
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• 2016

Background: The present study was designed to examine the functional recovery following spinal cord injury (SCI) by adjusting the parameters of impact force and dwell-time using the Infinite Horizon (IH) impactor device. Methods: Sprague-Dawley rats (225-240 g) were divided into eight injury groups based on force of injury (Kdyn) and dwell time (seconds), indicated as Force-Dwell time: 150-4, 150-3, 150-2, 150-1, 150-0, 200-0, 90-2 and sham controls, respectively. Results: After T10 SCI, higher injury force produced greater spinal cord displacement (P < 0.05) and showed a significant correlation (r = 0.813) between the displacement and the force (P < 0.05). In neuropathic pain-like behavior, the percent of paw withdrawals scores in the hindpaw for the 150-4, 150-3, 150-2, 150-1 and the 200-0 injury groups were significantly lowered compared with sham controls (P < 0.05). The recovery of locomotion had a significant within-subjects effect of time (P < 0.05) and the 150-0 group had increased recovery compared to other groups (P < 0.05). In addition, the 200-0 and the 90-2 recovered significantly better than all the 150 kdyn impact groups that included a dwell-time (P < 0.05). In recovery of spontaneous bladder function, the 150-4 injury group took significantly longer recovery time whereas the 150-0 and the 90-2 groups had the shortest recovery times. Conclusions: The present study demonstrates SCI parameters optimize development of mechanical allodynia and other pathological outcomes.

• 대한인간공학회지
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• 제36권5호
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• pp.535-543
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• 2017

Objective: This study was designed to identify factors affecting pilots' +Gz tolerance recovery from +Gz induced exhaustion. Background: +Gz tolerance of pilots has been considered as a crucial factor to fly the modern high performance fighter aircrafts. However, the factors affecting pilots' G-tolerance recovery from +Gz induced exhaustion have not been examined in the acceleration research community. Method: A centrifuge profile consisting of a high +Gz run for pilot's exhaustion and a low +Gz run for pilot's recovery and another high +Gz runs for pilot's second exhaustion was designed. The subjects' +Gz tolerance recovery ratio was measured by ratio of second high +Gz run time to the first high +Gz run time. The subjects' +Gz tolerance recovery rate was measured by dividing the subjects' +Gz tolerance recovery ratio by the low +Gz run time. The subjects' G-tolerance recovery rate was analyzed with respect to the subjects' personal factors including subjects' anthropometric and physiologic characteristics, flight time, flying aircraft type and so on. Results: The subjects' previous three-month flight hours (r=-0.336, p=0.039), six-month flight hours (r=-0.403, p=0.012) and one-year flight hours (r=-0.329, p= 0.044) correlated with the subjects' G-tolerance recovery rate. Conclusion: The subjects' G-tolerance recovery rate is clearly related to the subjects' previous flight hours. However, the subjects' anthropometric and physiologic characteristics do not show any statistically significant correlation with the subjects' G-tolerance recovery rate. Application: This research provides a safety critical insight to aviation community by identifying the factors to affect the gravity-induced loss of consciousness (GLOC) of pilots.

• 성인간호학회지
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• 제17권4호
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• pp.612-621
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• 2005

Purpose: This study aims at confirming the effects of the chest meridian massage on the post-anesthetic recovery of general anesthesia appendectomy patients. Method: The research was post-test designed as a nonequivalent control group among quasi-experiments tested. The data was collected from June 20, 2003 to October 14, 2003 at a hospital in P city. In the collected data, using SPSS Win 10.0 program, these general features were analyzed by real numbers and percentages; the homogeneity among variables by $X^2-test$ and t-test and the research hypothesis by the t-test. Result: Hypothesis 1; The experimental group receiving the treatment of the chest meridian massage will have a much higher post-anesthetic recovery score than that of the control group not receiving it was supported(t=2.544, p=.014). Hypothesis 2; The experimental group receiving the treatment of the chest meridian massage will have a much shorter time of stay in the recovery room than that of the control group not receiving it was supported(t=-4.919, p=.000). Conclusion: According to these results, it may be concluded that Chest Meridian Massage is effective in producing a higher level of post-anesthetic recovery score and helps appendectomy patients reduce the time of stay in the recovery room. Therefore the chest meridian massage can be considered as an intervention therapy for directly nursing general anesthesia appendectomy patients.

• The Journal of Korean Physical Therapy
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• 제9권1호
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• pp.147-156
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• 1997

The purpose of this study is to determine the difference of reduction in lactic acid of blood in the course of time 1)whoa applying the blood cleaning therapy during recovery after anaerobic exercise, 2)when applying the massage during recovery after anaerobic exercise, and 3)while taking a rest during recovery after anaerobic exercise, respectively. The subject of this study consists of 30 men who are divided into three groups such as group 1(n=10) for the blood cleaning therapy, group 2(n=10) for the massage and group 3(n=10) for rest. The blood-gathering was performed over four times ; during rest, immediately after unaerobic exercise, and at 10 and 15 minutes during recovery. The results were summarized as fellows. 1. There was reduction in lactic acid when applying the blood cleaning therapy during recovery after anaerobic exercise. And remarkable differences were shown from immediately after exercise to at 10 and 15 minutes during recovery(p<0.01 and p<0.001, respectively). 2. There was also reduction in lactic acid when applying the massage during recovery after anaerobic exercise. No difference wan shown from immediately after exercise to at 10 minutes during recovery. However a remarkable difference was shown from immediately after exercise to at 15 minutes during recovery(p<0.05). 3. The rest group which took a rest during recovery after anaerobic exercise did not show any difference from immediately after exercise to at 10 and 15 minutes during recovery.

• 한국산학기술학회논문지
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• 제19권4호
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• pp.211-220
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• 2018

본 연구는 지역사회 정신보건시설(정신건강증진센터와 정신재활시설)을 이용하는 정신장애인의 임파워먼트와 회복간의 관계에서 치료자와의 치료적 관계가 매개효과를 갖는지를 확인하기 위한 것이다. 자료수집 기간은 2015년 4월 15일부터 20일까지였고, 조사 대상은 지역사회에 거주하는 정신장애인 168명이었다. 연구도구는 임파워먼트, 치료적 관계도구, 회복척도였다. 자료분석은 SPSS/WIN 19.0 프로그램을 이용하여 기술통계, Person's correlation, 다중회귀분석방법으로 분석하였다. 대상자들의 임파워먼트와 회복은 $60.4{\pm}10.85$점, $101.8{\pm}20.70$이었고, 치료적 관계는 $74.5{\pm}14.30$점이었다. 임파워먼트와 치료적 관계 (r=.33, p<.001), 임파워먼트와 회복(r=.51, p<.001)간에는 유의한 양의 상관관계를 보였고, 치료적 관계와 회복간 (r=.55, p<.001)에는 유의한 양의 상관관계를 보였다. 임파워먼트와 회복간의 치료적 관계의 매개효과를 검정한 결과, 임파워먼트와 치료적 관계가 모두 회복에 유의한 영향을 주는 것으로 나타나 치료적 관계는 두 변수 간 관계를 부분 매개하는 것으로 나타났고, Sobel test을 통해 확인한 결과 매개효과는 통계적으로 유의하였다.(z=3.706, p<.001). 본 연구결과는 정신장애인의 치료자와의 관계 속에서 치료적 관계 증진을 도모하고 임파워먼트를 향상시킬 수 있는 실제적인 회복 증진 프로그램 개발을 위한 기초자료로 활용 될 수 있을 것이다.

• 한국산학기술학회논문지
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• 제20권7호
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• pp.182-191
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• 2019

본 연구의 목적은 고혈압 노인의 사회적 지지, 회복탄력성 및 자가간호행위의 관계를 파악하고 자가간호행위에 미치는 영향을 파악하기 위함이다. 본 연구는 C 지역에 위치한 3곳의 노인복지회관을 이용하는 고혈압 노인 183명을 대상으로 수행된 서술적 조사연구이다. 자료 수집은 설문지를 이용하였으며, 자료수집 기간은 2018년 8월 20일부터 8월 31일 까지였다. 수집된 자료는 t-test, ANOVA, Pearson's correlation coefficient, stepwise multiple regression를 이용하여 분석하였다. 연구 결과, 대상자의 사회적 지지 정도는 5점 만점에 평균 $3.79{\pm}0.78$점, 회복탄력성 정도는 5점 만점에 평균 $4.10{\pm}0.71$점, 자가간호행위 정도는 5점 만점에 $3.93{\pm}0.51$점이었다. 자가간호행위는 사회적 지지(r=.204, p<.001) 및 회복탄력성(r=.405, p<.001)과 정적 상관관계가 있었다. 자가간호행위에 유의한 영향을 미치는 요인은 회복탄력성(${\beta}=.36$, p<.001)과 운동의 규칙성(${\beta}=.17$, p=.019)으로 확인되었으며, 이들 변수들은 자가간호행위의 18.9%를 설명하였다(F=21.02, p<.001). 본 연구 결과 회복탄력성, 운동의 규칙성은 고혈압 노인의 자가간호행위에 영향을 미치는 주요한 요인임을 확인하였다. 따라서 고혈압 노인의 자가간호행위를 증진시키기 위해서는 운동을 규칙적으로 수행하도록 권고하고 회복탄력성을 증진시킬 수 있는 간호중재 개발 및 평가가 이루어져야 할 것으로 생각된다.

• 한국산학기술학회논문지
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• 제19권11호
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• pp.662-671
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• 2018

본 연구는 중소병원 간호사의 스트레스 대처능력, 회복탄력성과 재직의도와의 관계를 알아보고 재직의도에 미치는 영향요인을 파악하기 위한 서술적 조사연구이다. 조사대상은 G지역과 I시에 위치한 150병상 이상의 5개 중소병원 간호사 265명을 대상으로 하였으며, 자료 수집은 2018년 5월 19일부터 5월 25일까지 시행하였다. 수집된 자료는 IBM SPSS/WIN 23을 이용하여 t-test, ANOVA, Pearson 상관관계와 다중회귀분석을 시행하였다. 연구결과, 대상자의 스트레스 대처능력은 4점 만점에 $2.55{\pm}0.25$점, 회복탄력성과 재직의도는 5점 만점에 각각 $3.47{\pm}0.49$, $2.59{\pm}0.29$점이었다. 또한 재직의도는 스트레스 대처능력(r=.285, p<.01)과 회복탄력성(r=.457, p<.01)에 양의 상관관계가 있었다. 중소병원 간호사의 재직의도에 영향을 미치는 요인은 성별(${\beta}=.117$, p=.027), 간호직 만족도(${\beta}=.345$, p<.001), 스트레스 대처능력(${\beta}=.142$, p=.008), 회복탄력성(${\beta}=.238$, p<.001)이었으며, 재직의도에 대한 설명력은 37.8%였다(F=11.686, p<.001). 따라서 중소병원 간호사의 재직의도를 향상시키기 위해서 간호만족도, 스트레스 대처능력과 회복탄력성을 높일 수 있는 중재방안이 모색되어야 함을 확인할 수 있었다. 중소병원 내 간호만족도와 유대감을 높이기 위한 노력, 개인의 스트레스 관리를 위한 체계적인 프로그램을 통해 간호의 질 향상에 기여할 수 있을 것으로 본다.