• 여성건강간호학회지
• /
• 제23권4호
• /
• pp.233-242
• /
• 2017

Purpose: This study investigated the relationships among parenting stress, husband's support, and breastfeeding adaptation in mothers. Methods: A correlational survey design was utilized in this study. Data were collected from 181 breastfeeding mothers with infants under 12 months of age. Participants were recruited from the outpatient clinic, a child photo studio, or from the kid's cafe from July 22 to September 13, 2016. Instruments for collecting data included Childcare Stress Inventory (CSI), Husband's Support scale, and the Breastfeeding Adaptation scale. Data were analyzed using SPSS 21.0 by frequency, descriptive statistics, t-test, one-way ANOVA, Pearson's correlation coefficient and multiple regression. Results: Of the 181 subjects, 54.7% responded they only breastfed with 75.7% who received breastfeeding education. Seventy-two percent of mothers made a decision to breastfeed by themselves. The mean score was $2.39{\pm}0.53$ for parenting stress, $3.07{\pm}0.43$ for husband's support, and $3.85{\pm}0.49$ for breastfeeding adaptation. Factors influencing breastfeeding adaptation were identified as lower parenting stress (${\beta}=-.54$), greater husband's support (${\beta}=.31$), breastfeeding (${\beta}=.31$), and older age of baby (${\beta}=.14$), with 56.0% that explained variance. Conclusion: This study reports that parenting stress has negative effect on breastfeeding adaptation, while husband's support has positive effect. Results may be useful in developing new strategies for enhancing breastfeeding adaptation.

• 동서간호학연구지
• /
• 제20권1호
• /
• pp.63-71
• /
• 2014

Purpose: This study proposed to identify the mediating effect of social support and stress on optimism and psychological well-being in clinical nurses. Methods: Data were collected through structured questionnaires. The participants of this study were 207 clinical nurses who worked at hospitals in the metropolitan cities of B & U. Data were collected from September 3 to September 30, 2013. The data were analyzed using t-test, ANOVA, Scheffe's test, Pearson's correlation coefficients, and multiple regression with SPSS WIN v 20.0. Results: The mean scores of optimism, social support, stress, psychological well-being were $3.61{\pm}0.62$, $3.65{\pm}0.64$, $0.82{\pm}0.59$, $3.36{\pm}0.38$ respectively. Social support and stress showed mediating effects between optimism and psychological well-being. Conclusion: Based on this study, intervention programs to reduce stress and create support systems for clinical nurses should be developed to improve their psychological well-being.

• 운동영양학회지
• /
• 제23권3호
• /
• pp.22-28
• /
• 2019

[Purpose] The purpose of this study was to investigate the effect of diet plus exercise training and detraining for 12 weeks on body composition, aerobic performance, and stress-related variables in obese women. [Methods] Twenty-five women in their 20s-40s with 30% body fat and body mass indices above 25 kg/m² were divided into HR_LT (heart rate at lactate threshold) and HR_LT + 5% groups. Dietary intervention of 70% recommended dietary allowance (RDA) and exercise treatment composed of aerobic exercises on a bicycle (30 min) and treadmill (30 min) were then performed. These interventions were performed three times a week for 12 weeks. [Results] Dietary intake was significantly decreased, while daily activity significantly increased within the 12-week intervention period, and this effect was sustained after 12 weeks of detraining. Exercise training based on dietary intake and daily activity presented a significantly decreased weight and % body fat, improvement of aerobic performance, and a significant increase in heart rate variability (HRV) (e.g., average of all RR intervals and the square root mean squared differences of successive RR intervals) as stress-related variables. It was also confirmed that the improvement of body composition and stress-related variables were maintained even after detraining. [Conclusion] Our results suggest that 70% RDA of dietary intervention and exercise training corresponding to HR_LT and HR_LT + 5% for 12 weeks were effective in improving body composition and aerobic performance, and relieving stress. In particular, enhanced HRV persisted for up to 12 weeks after the end of exercise training in obese women.

• 간호행정학회지
• /
• 제16권1호
• /
• pp.17-25
• /
• 2010

Purpose: This study was to investigate the relationship among emotional intelligence, self-efficacy and job stress of nurses. Method: Data was collected from convenient sample of 265 nurses who work for a university hospital in a city. The Questionnaire measured the level of emotional intelligence, self-efficacy and job stress of nurses. The data were analyzed using descriptive statistics, t-test, ANOVA, scheffe' test, pearson's correlation coefficient and hierarchical multiple regression. Result: The mean score of emotional intelligence was 3.41(${\pm}.37$), self-efficacy was 3.27(${\pm}.45$) and job stress was 3.35(${\pm}.65$). There were significant differences on self-efficacy according to age, marital status and education level. And there were significant differences on job stress according to age, working unit. It was a significant positive correlation between emotional intelligence and self-efficacy. The emotional intelligence and self-efficacy were significantly negative correlation with job stress. The emotional intelligence explained 24.8% of self-efficacy and 1.9% of job stress and self-efficacy explained 2.7% of job stress. And the self-efficacy was showed a mediate variable between emotional intelligence and job stress. Conclusion: To decrease job stress, nursing managers ought to develop the emotional intelligence and self-efficacy of nurses, reinforce as a mediating role between emotional intelligence and job stress

• 성인간호학회지
• /
• 제12권2호
• /
• pp.267-277
• /
• 2000

The purpose of this study was to help the women with stress urinary incontinence lead more comfortable life, by letting them to do pelvic muscle exercise and to learn by direct experience the effect that urinary incontinence is controlled. The research design was a one-group pretest-posttest design. The subjects were 16 middle-aged women(over 38) with stress urinary incontinence. The study was conducted from August 1, to October 11, 1999. Women trained themselves for muscular strength and endurance, every the other day for each exercise for six weeks at home(that means each exercise for more than three days a week) in the pelvic muscle exercise program which was developed by Dougherty et al., and filled out exercise participation card every week. They visited laboratory once a week to get visual feedback, by means of Perineometer, of how the pelvic muscle exercise was going on. Stress Urinary Incontinence Scale that Lee, Young-Sook revised and supplemented Hendrickson's original scale was used for measuring the frequency and situation scores of urinary incontinence, "30 minute pad test" was carried out for measuring the amount of urinary incontinence, and Perineometer was used for measuring maximum vaginal contraction pressure. Percentage, mean, standard deviation and Wilcoxon signed ranks test were used for data analysis by means of SPSS/PC+ WIN 9.0 program. The results were summarized as follows : The hypothesis 1 that after carrying out pelvic muscle exercise program on women with stress urinary incontinence, the weekly degree of urinary incontinence would reduce compared to before the exercise was supported. The hypothesis 1-1 that after carrying out pelvic muscle exercise program on women with stress urinary incontinence, the weekly frequency of urinary incontinence would reduce compared to before the exercise was supported (p=.003). The hypothesis 1-2 that after carrying out pelvic muscle exercise program on women with stress urinary incontinence, the situation scores of urinary incontinence would reduce compared to before the exercise was supported(p=.044). The hypothesis 2 that after carrying out pelvic muscle exercise program on women with stress urinary incontinence, the amount of urinary incontinence would reduce compared to before the exercise was supported(p=.001). The hypothesis 3 that after carrying out pelvic muscle exercise program on women with stress urinary incontinence, the maximum vaginal contraction pressure would increase compared to before the exercise was supported (p=.012). These results suggest that pelvic muscle exercise program has an effect on women with stress urinary incontinence in the degree and amount of urinary incontinence and maximum vaginal contraction pressure. So it is judged that training women with stress urinary incontinence for pelvic muscle exercise is an effective nursing intervention strategy in order to care urinary incontinence.

• Composites Research
• /
• 제24권1호
• /
• pp.10-16
• /
• 2011

복합재 적층판의 피로수명을 평가하는 것은 여러 가지 재료와 섬유적층각에 따라 수많은 인증실험이 요구된다. 본 논문에서는 미시역학적 파손이론을 이용하여 복합재의 구성재료인 섬유, 기지 및 섬유/기지 경계면의 피로수명 예측를 통해 복합재 적층판의 피로수명 평가를 할 수 있는 방법을 제시하였다. 기지는 다축응력상태을 고려할 수 있는 일반적인 등방성 재료의 등가응력파손식을 이용하였고, 섬유는 이방성 재료이지만 섬유방향의 응력이 주요하므로 섬유방향의 응력만 고려한 최대응력 파손식을 사용하였다. 섬유/기지 경계면에서는 임계단면파손식을 사용하였고, 경계면의 피로강도가 크다고 가정하여 경계면에서의 피로파손는 무시하였다. 인장과 압축강도가 다른 재료의 평균응력효과를 고려할 수 있도록 수정된 Goodman 식을 이용하였다. 순수 기지의 피로실험 데이터를 기반으로 미시역학적 파손이론을 이용하여 단일 플라이와 복합재 적층판인 UDT[$90^{\circ}2$], BX[${\pm}45^{\circ}$]S와 TX[$0^{\circ}/{\pm}45^{\circ}$]S의 피로수명을 예측해 보았고, 실험 데이터와 잘 일치함을 확인하였다.

• 대한기계학회논문집
• /
• 제16권3호
• /
• pp.540-546
• /
• 1992

본 연구에서는 레이놀즈응력 모델이 곡률효과에 대한 추가적인 수정을 요구하 는 지를 알기 위하여 유선곡률에 의해 영향을 받는 원형 쿠에트 유동에 대해 수치계산 을 수행하고, 이 결과를 측정한 실험치와 비교하였다. 본 연구의 실험에서는 완전 난류 영역에서 난류평균속도와 난류응력성분들을 측정하였다. 수치계산에 있어서는 레이놀즈응력 모델에 대하여 Gibson과 Younis가 곡률효과를 고려해 제안한 새로운 모 델상수를 기존의 모델상수와 함께 적용하여 그 결과를 비교하였다. 계산된 결과를 본 실험의 측정치와 아울러 함께 Smith와 Townsend의 측정치와도 비교하였다.

• 한방재활의학과학회지
• /
• 제33권4호
• /
• pp.167-184
• /
• 2023

Objectives This study was designed to assess the effectiveness of ultrasound therapy at the ST11 for regulation of sympathetic hyperactivity. Methods Forty healthy adult subjects were assigned to experimental group and control group. After taking mental stress, ultrasound therapy was applied at the ST11 in experimental group and sham-ultrasound therapy was applied in control group. The evaluation of sympathetic activity was measured by blood pressure, pulse rate, and heart rate variability at 3 times (Time 1: before the stress stimulation, Time 2: after the stress stimulation, Time 3: after the intervention). The primary end point was consisted of normalized (norm) low frequency (LF)/high frequency (HF) ratio, LF (norm), HF (norm). The secondary end point was consisted of systolic blood pressure, diastolic blood pressure, pulse rate, mean heart rate, standard deviation of NN intervals, root mean square of the successive differences, total power (log). Results After the stress stimulation, all subjects showed sympathetic hyperactivity. After the intervention, the experimental group showed lower sympathetic activity than the control group. Comparing the Time 3 and Time 1, the experimental group showed no significantly differences in sympathetic activity while the control group showed higher sympathetic activity in Time 3 than Time 1. Comparing the Time 3 and Time 2, the experimental group showed lower sympathetic activity in Time 3 than Time 2 while the control group showed higher sympathetic activity in Time 3 than Time 2. Conclusions We suggest that the ultrasound therapy at ST11 can decrease sympathetic activity in sympathetic hyperactivity condition.

• 치위생과학회지
• /
• 제13권3호
• /
• pp.238-245
• /
• 2013

본 연구는 치위생과 학생들을 대상으로 자기 통제력의 수준이 스트레스와 대처방식에 미치는 영향을 알아보고, 스트레스로 인한 학교생활 부적응을 예방하기 위한 기초자료로 활용하고자 2012년 9월부터 10월까지 3개 대학의 치위생과 재학생을 편의 추출하여 자료를 수집하였고, 최종적으로 채택된 561부를 분석하여 다음과 같은 결론을 얻었다. 1. 치위생과 학생들의 자기 통제력 수준은 평균 3.22점으로 나타났으며, 학년에 따른 자기 통제력은 3학년이 3.27점으로 가장 높게 나타났고(p<0.05), 스트레스를 많이 받을수록 자기 통제력이 낮은 것으로 나타났다(p<0.05). 2. 영역별 스트레스 대처방식은 적극적 대처가 평균 3.28점, 소극적 대처가 평균 3.34점으로 소극적 대처방식을 더많이 사용하는 것으로 나타났으며, 경제수준이 높을수록 적극적 대처방식을 사용하는 것으로 나타났고(p<0.001), 적극적 대처는 스트레스 수준(p<0.01)과 스트레스로 인한 건강 영향 정도(p<0.05)에 따라 각 군 간에 통계적으로 유의한 차이가 있었다. 또한 자기통제력 수준에 따른 영역별 스트레스 대처방식을 비교한 결과, 자기 통제력이 높을수록 적극적 대처 방식을 빈번하게 사용하는 것으로 나타났다. 3. 자기 통제력에 영향을 미치는 요인을 분석하기 위해 다중회귀분석을 시행한 결과 스트레스 수준 중 '전혀 받지 않는다(${\beta}$=0.084, p<0.05)'와 적극적 대처방식(${\beta}$=0.234, p<0.001)이 자기 통제력과 관련이 있었다. 이상의 결과를 통해 자기 통제력은 스트레스를 대처하는데 영향을 미치는 요인 중의 하나이므로, 스트레스를 적절하게 대처하기 위해 개인의 자기 통제력 정도를 확인하고, 자기 통제력을 발달시킬 수 있는 적절한 상담 프로그램을 개발하는 데 노력을 기울여야 할 것으로 보인다.

• 대한기계학회논문집A
• /
• 제21권2호
• /
• pp.199-208
• /
• 1997

A local strain approach was applied to an external single and double grooved C-shaped specimen in order to evaluate and predict the fatigue crack initiation life by using low cycle fatigue properties. The low cycle fatigue properties were determined from the strain-controlled fatigue tests using smooth cylindrical axial specimens. Fatigue crack initiation life was evaluated by a life prediction software, FALIPS, based on the local strain approach. The fatigue life was significantly influenced by the mean stress, and SWT parameter represented the fatigue life effectively. The predicted fatigue crack initiation life was then compared to the experimental fatigue life evaluated from the C-shaped fatigue test specimens. A good correlation was found between the experimental and predicted fatigue lives within factors of 2 and 4 for the single and double grooved C-shaped specimens respectively. Also, experimental fatigue life of the double grooved specimen was 10-12 times longer than that of the single grooved specimen.