• 여성건강간호학회지
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• 제6권4호
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• pp.566-578
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• 2000

This study was conducted to ascertain infant's sleep and feeding patterns for the purpose of building up the positive parent-child relationship and setting up a preliminary parenting education program. The subjects were 16 infants who were cared for in their houses. The data was collected using NCASA developed by Barnard et al. from October 1st to December 3lth, 1999. The analysis of data was done with SPSSWIN for descriptive statistics and t-test, ANOVA, Correlation Analysis. The result were as follows: 1. The average day sleep of the infant was 9.51 hours, night sleep was 6.27 hours, and total sleep was 15.84 hours. The longest period of day sleep was 3.02 hours, and the longest period of night sleep was 3.72 hours. The regularity of day sleep was 34.78%, night sleep was 61.72% and total was 43.76%. 2. The frequency of daytime feeding was 5.13 times, nighttime was 2.44 times and total was 7.38 times. The regularity of feeding was 52.14%. 3. In the correlation between sleep and feeding patterns, night sleep was negatively correlated with feeding method(r=-.52, P<0.05), the longest period of day sleep was negatively correlated with feeding method(r=-.73, P<0.001), feeding frequency(r=-.60, P<0.05), the regularity of feeding(r=-.70, P<0.001). The longest period of night sleep was negatively correlated with feeding frequency (r=-.53, P<0.05). Feeding method was positively correlated with feeding frequency(r=.71, P<0.001), the regularity of feeding(r=.57, P<0.05). Day sleep was positively correlated with total sleep(r=.93, P<0.001), the regularity of total sleep was positively correlated with the longest period of day sleep(r=.54, P<0.05), total sleep(r=.65, P<0.001). The regularity of feeding was positively correlated with feeding method(r=.57, P<0.05), total feeding frequency(r=.50, P<0.05), the frequency of daytime feeding(r=.61, P<0.05). Feeding method was positively correlated with total feeding frequency(r=.71, P<0.001). In conclusion, the study showed that infants slept more in the nighttime than in the daytime, but after 3 months the pattern changed and showed that nighttime sleep was increased. Also the regularity of night sleep was increased with the infant's age. Total feeding frequency was decreased with the infant's age, and the regularity of feeding was increased in infants who slept shorter periods in the daytime than in the nighttime.

• 사상체질의학회지
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• 제16권3호
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• pp.18-24
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• 2004

1. Objectives This study is for discovering the characteristics of the sleep in ordinary symptoms based on the Sasang Constitution. The result of this study could be helpful to understand and to identify the patients as Taeumin by contrast with non-Taeumin. 2. Methods There were 1,229 patients(529 men), who answered the questionnaire about their ordinary sleep patterns. They had been diagnosed, including their Sasang Constitution, by the Sasang Constitution specialist at Bundang Oriental Hospital of Dongguk university. Applying the binary logistic regression analysis to each item about ordinary sleep patterns and the diagnosed Sasang Constitution, we can measure the characteristics and influence of ordinary sleep patterns to the dependent variable(Sasang Constitution). 3. Results As a result of the binary logistic analysis on the observed questionnaire, we found the similar features of the ordinary sleep patterns on Taeumin by contrast with non-Taeumin. In order of influence that identify Taeumin or non-Taeumin, first, Taeumin has a tendency that he will snore well or frequently. Second, Taeumin has a tendency that he will not dream, when he sleeps by contrast with non-Taeumin. 4. Conclusions This study will be used to identify patients as Taeumin or non-Taeumin by means of a reference tool.

• 수면정신생리
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• 제7권1호
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• pp.51-59
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• 2000

목 적: 청소년기에는 수면양상의 많은 변화가 있다고 알려져 있으나 학업량이 많다고 알려진 한국 학생의 수면 양상은 아직 체계적으로 연구된 바 없다. 이에 저자는 전국적인 조사에 앞선 예비연구로서, 서울의 한 지역에 위치한 중학교와 고등학교를 조사하여 청소년들의 수면 양상과 학년에 따른 변화를 알아보았다. 방 법: 서울 강동구에 위치한 H 중고등학교에 재학 중인 학생들을 대상으로, 학년별로 두 반을 선택하여 남녀 각각 50명 내지 100명이 되도록 하였다. 주말을 포함하여 7일간의 수면 일지와 설문지를 작성하게 하였으며, 동시에 조사 당시 1개월 동안의 평일과 주말 평균 수면 양상을 숫자로 기록하도록 하여 771명이 연구에 포함되었다. 평일은 월요일 오전 9시부터 토요일 오전 9시까지로 하였고, 주말은 토요일 오전 9시부터 일요일 오전 9시까지로 하였으며, 일요일 오전9시부터 월요일 오전 9시까지는 따로 분석하고 그 독립성을 검증하였다. 통계학적 분석은 SPSS/PC for windows 7.0을 이용하였다. 본 연구의 유의수준은 p<0.01로 설정하였다. 결 과: 중학교 1학년부터 고등학교 3학년까지 평일의 취침 시간은 2327에서 0131로 늦어졌고, 평일의 기상 시간은 0714에서 0639로 빨라졌으며, 평일의 수면 시간은 7.73시간에서 5.10시간으로 감소하였다. 6개 학년에서 주말에 평일보다 평균 1.60시간 많이 잤으며, 고등학교 2학년과 3학년에서 그 정도가 더 심하였다. 주말의 취침 시간은 중학교 1학년부터 고등학교 3학년까지 2324에서 0129로 늦어졌다. 수면 효율과 수면 잠복기는 비교적 학년 별로 일정한 편이었다. 남녀 간에 큰 차이는 없는 것으로 나타났으나, 여학생의 경우 남학생에 비해 평일에 10분을 더 자고 16분 정도 일찍 자는 것으로 나타났으며, 전체 수면양에서 시기적으로 여학생은 중학교 3학년에서 고등학교 1학년 사이에서, 남학생은 고등학교 1학년과 2학년 사이에서 의미 있게 감소하는 차이를 보였다. 나이가 적을수록 응답률이 낮았다. 결 론: 외국의 연구에서 보고된 결과와 비교해 보면, 대상 청소년들은 적게 자고, 늦게 자고, 일찍 일어나는 것으로 보이며, 따라서 외국의 청소년에 비해 수면 양상이 더 불량하고, 보다 많은 수면 결핍을 경험하는 것으로 보인다. 이를 제도적으로 보완하기 위한 시책이 요구된다는 점에서 향후 광범위한 추가적 연구가 필요할 것으로 사료된다. 중학교 1학년과 2학년의 어린 청소년의 경우 응답률이 낮은 것은 설문지의 형식을 제대로 이해 못한 것으로 추정되며 향후 연구에서 좀 더 통제가 필요할 것으로 생각되었다.

• 대한간호학회지
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• 제54권2호
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• pp.139-150
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• 2024

Purpose: This study aimed to identify changes in sleep patterns and fatigue levels during consecutive night shifts among shift nurses and to determine the association between sleep parameters and increased fatigue levels during work. Methods: This prospective observational study employing ecological momentary assessments was conducted using data collected from 98 shift nurses working in Korean hospitals between June 2019 and February 2021. The sleep patterns were recorded using actigraphy. The participants reported their fatigue levels at the beginning and end of each night shift in real time via a mobile link. Linear mixed models were used for the analysis. Results: Nurses spent significantly less time in bed and had shorter sleep durations during consecutive night shifts than on off-duty days, whereas their wake times after sleep onset were much longer on off-duty days than on on-duty days. Fatigue levels were higher on the second and third night-shift days than on the first night-shift days. A shorter time spent in bed and asleep was associated with a greater increase in fatigue levels at the end of the shift than at the beginning. Conclusion: Nurses experience significant sleep deprivation during consecutive night shifts compared with off-duty days, and this sleep shortage is associated with a considerable increase in fatigue levels at the end of shifts. Nurse managers and administrators must ensure sufficient intershift recovery time during consecutive night shifts to increase the time spent in bed and sleeping.

• 수면정신생리
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• 제23권1호
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• pp.10-15
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• 2016

Since its development in the early 70s, actigraphy has been widely used in sleep research and clinical sleep medicine as an assessment tool of sleep and sleep-wake cycles. The validation and reliability of actigraphic measures have been reasonably examined in healthy normal individuals with good sleep patterns. Recent literature suggests that the use of actigraphy could be further extended to monitor insomnia and circadian sleep-wake disturbances, and detect sleep changes associated with drug treatments and non-pharmacologic interventions, although it is generally recommended to use complementary assessments such as sleep diaries and overnight polysomnography when possible. The development of actigraphy includes its improved hardware sensors for better detection of movements and advanced algorithms to score sleep and wake epochs. In this paper, we briefly review the quantitative analysis methods of actigraphy and its potential applications in sleep research.

• Journal of Korean Biological Nursing Science
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• 제21권3호
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• pp.231-238
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• 2019

Purpose: In 2015, South Korea had the highest global smartphone penetration (88%). However, smartphone addiction can seriously disrupt daily life and have a major negative impact on academic achievement. Methods: A structured questionnaire was completed by 250 nursing students for this descriptive study. Results: Students who were older, more satisfied with their major, exercised, and used their smartphone for less than 30 minutes before sleeping had higher learning engagement than those who were younger, less satisfied, did not exercise and used their smartphone for more than three hours. Quality of sleep and smartphone addiction were negatively correlated as was quality of sleep and daytime sleepiness. Interestingly, sleep pattern did not impact learning engagement directly. Conclusion: Smartphone usage influences learning engagement of nursing students rather than their sleeping patterns, which suggests a need to develop self-disciplining strategies for smartphone use to enhance learning engagement.

• 수면정신생리
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• 제15권2호
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• pp.87-93
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• 2008

목 적：의과대학생은 수면량이 부족한 것으로 알려져 있지만 국내에서 많은 연구가 이루어져 있지는 않다. 이 연구에서는 의과대학생을 대상으로 하여 생활 습관 및 수면 양상을 알아보고 이것이 학업 성적에 미치는 영향을 분석하였다. 방 법：서울대학교 의과대학 3학년 학생의 수면 양상을 평일과 휴일로 나누어 설문 조사하였고, 수면과 관련될 것으로 생각되는 생활 습관, PSQI와 학업 성적을 조사하였다. 총 110명(남자 85명, 여자 25명, 평균 연령 $24.4{\pm}20.6$세)의 결과를 분석하였다. 두 군간 연속변수 비교에는 독립 t-검정, 비연속변수 비교에는 $x^2$-검정, 휴일과 평일 간 비교에는 짝짓기 t-검정, 두 변수간의 상관관계는 Pearson 상관분석 그리고 세 군 이상 비교에는 ANOVA를 이용하였다(p<0.05, 양측검정). 결 과：의과대학생들에서 평일보다 휴일에 더 늦게 자고(평일 1：24；휴일 3：12；t=-5.23, p<0.01) 더 늦게 일어나며(평일 7 ：38 ；휴일 10 ：30 ；t=-24.48, p<0.01), 휴일 수면시간이 더 길었다(평일 5：57；휴일 8：17；t=15.94, p<0.01). 주관적인 수면의 질이 좋은 군이 좋지 않은 군에 비해 학업 성적이 더 높았다($3.35{\pm}0.52,\;3.07{\pm}0.67$, t=2.05, p<0.05). 학업 성적은 나이(r=-0.23, p<0.05), 하루 흡연량 및 총 흡연량(r=-0.78, p<0.01；r=-0.75, p<0.01), 평일 및 휴일 수면잠복시간(r=-0.23, p<0.05；r=-0.23, p<0.05) 그리고 PSQI 총점(r=-0.30, p<0.01)과 음의 상관관계가 있었다. 결 론：의과대학생들은 휴일에 비해 평일에 더 늦게 자고, 더 늦게 일어나며, 수면시간이 더 길어 평일 수면이 부족한 양상이었다. 전반적으로 주관적인 수면의 질이 좋지 않았고, 수면의 질이 안 좋은 군에서 학업 성적이 더 낮았다.

• 동의신경정신과학회지
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• 제16권2호
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• pp.65-72
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• 2005

Objectives : This study is for discovering the clinical Features of the sleep in ordinary symptoms based on the Sasang Constitution. The result of this study could be helpful to understand and to identify the patients as Soyangin in contrast with the other constitutions -Soeumin, Taeumin and Taeyangin. Methods : There were 1,229 patients(700 female), who answered the questionnaire about their ordinary sleeping patterns. They had been diagnosed, including their clinical Sasang Constitution, by the Sasang Constitution specialist at Bundang Oriental Hospital of Dongguk University. By applying the binary logistic regression analysis, we can measure the characteristics and the influence of ordinary sleeping patterns to the dependent variable(Sasang Constitution). Results : As a result of the binary logistic analysis on the observed questionnaire, we found the characteristics of the ordinary sleeping patterns on Soyangin in contrast with the other constitutions. Firstly, Soyangin has a tendency that he wouldn't dreams more, when he sleeps in contrast with the others. Secondly, Soyangin has a tendency that he wouldn't sleep longer than 6-7hours. Thirthly, Soyangin has a tendency that he will sleep well in contrast with the others. Conclusion : This study will be used to identify patients as Soyangin in contrast with the others-Soemin, Taeumin and Taeyangin.

• 수면정신생리
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• 제27권2호
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• pp.33-40
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• 2020

An infant's sleep varies considerably from that of adults in terms of structure, amount, and breathing pattern. After birth, sleep becomes evenly distributed throughout the day and night. Nighttime sleep gradually increases with the maturation of circadian rhythm, and sleep is gradually consolidated. Electroencephalography characteristics change with age, from early and dominant active (REM) sleep in newborns to increasing NREM sleep. Similar to other elements of growth, the upper respiratory tract and ribcage gradually increase in size with age, and respiratory control also improves. With these changes, sleep patterns also change. At this time that various sleep disorders may appear. Improved understanding of age-dependent changes in infant sleep can help determine the etiology and facilitate diagnosis of infant sleep diseases.

• 대한감각통합치료학회지
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• 제15권1호
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• pp.33-45
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• 2017

목적 : 본 연구는 비숙면군 대학생의 감각처리특성과 수면의 질의 상관관계를 알아보고자 한다. 연구방법 : 부산광역시, 경상남도, 대구광역시, 그리고 경상북도에 소재한 6개 대학의 만 18세~25세 대학생 191명을 대상으로 하였다. 연구도구는 한글판 청소년/성인 감각 프로파일(Adolescent/Adults Sensory Profile; AASP)과 피츠버그 수면의 질 지수(Pittsburgh Sleep Quality Index; PSQI)를 사용하였다. 분석방법은 감각처리특성과 수면의 질의 관계를 알아보기 위해 Pearson 상관분석을 사용하였다. 결과 : 본 연구의 참가자들 중 비숙면군에서 감각처리특성과 수면의 질의 상관관계검증 결과, 등록 저하, 감각 민감성, 감각 회피, 감각 추구의 모든 감각특성이 수면의 질 항목 중 수면 방해와 정적 상관관계를 나타냈다. 수면의 질 항목 중 주간 기능장애는 등록 저하와 감각 민감성과 정적 상관관계를 나타냈다. 결론 : 대학생의 수면장애와 감각처리특성을 이해하는데 도움을 제공하며, 관련 연구의 기초 자료로 사용할 수 있다. 앞으로 대학생만이 아니라 아동, 성인, 노인을 대상으로 수면과 감각처리특성에 관한 연구가 필요하리라 생각된다.