Journal of Korean Sleep Research Society最新文献

Sleep and Cognitive Function in Shift Working Police Officers: Focusing on the Night Nap 轮班工作警察的睡眠与认知功能:以夜间午睡为重点

Journal of Korean Sleep Research Society Pub Date : 2020-08-24 DOI: 10.13078/jsm.200011

Yujin Hong, Sangha Lee, Jiyun Lee, S. Suh

{"title":"Sleep and Cognitive Function in Shift Working Police Officers: Focusing on the Night Nap","authors":"Yujin Hong, Sangha Lee, Jiyun Lee, S. Suh","doi":"10.13078/jsm.200011","DOIUrl":"https://doi.org/10.13078/jsm.200011","url":null,"abstract":"Address for correspondence Sangha Lee, PhD Department of Psychology, Sungshin Women’s University, 2 Bomun-ro 34da-gil, Seongbuk-gu, Seoul 02844, Korea Tel: +82-2-920-7215 Fax: +82-2-920-2040 E-mail: xrpsychology@gmail.com Objectives: Currently, more than 80% of Korean police officers are assigned to a 24-hour rotating shift system. Shift workers’ sleep patterns change frequently, which may result in circadian rhythm desynchrony and sleep disturbance. The goal of this study was to compare sleep and cognitive functioning in different shift types. In addition, we analyzed the difference in cognitive functioning depending on whether shift workers took a night nap prior to their night shift. Methods: A total of 278 police officers working in Seoul (mean age 45.27±9.00 years, 88.5% male) participated, providing demographic information and completing selfreport questionnaires [Insomnia Severity Index, Epworth Sleepiness Scale, Munich ChronoType Questionnaire (Shift-work type), Patient Health Questionnaire-9]. Participants also performed the Psychomotor Vigilance Task, Trail Making Test A & B, and Stroop Test. Results: Participants included 57 (20.5%) day workers and 221 (79.5%) shift workers. The average Insomnia Severity Index score of shift workers was significantly higher than day workers (t=-2.861, p=0.005). Shift workers also slept about 0.78 hours less than day workers (t=4.730, p<0.001). Among shift workers, 66.3% (n=128) reported they took night naps prior to their night shift, sleeping on average 1.78 hours. Shift workers who took night naps had faster reaction times on the Trail Making Test A task [F(1, 136)=5.741, p=0.018], and significantly fewer Stroop C errors [F(1, 137)=5.638, p=0.019] than those who did not. Conclusions: Shift working police officers reported significantly worse insomnia symptoms and slept less compared to their non-shift-working counterparts. Taking a night nap improved focused and selective attention. J Sleep Med 2020;17(2):113-121","PeriodicalId":243131,"journal":{"name":"Journal of Korean Sleep Research Society","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124343077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Assessing Sleep-Wake Pattern and Chronotype with the Korean Munich ChronoType for Shift-Workers in Shift Working Nurses 用韩国慕尼黑时型评估倒班护士的睡眠-觉醒模式和时型

Journal of Korean Sleep Research Society Pub Date : 2017-06-30 DOI: 10.13078/JSM.17004

S. Choi, S. Suh, E. Joo

引用次数: 11

Quantification of REM Sleep without Atonia in Korean REM Sleep Behavior Disorder Patients: Comparison of Manual and Computer-Assisted Scoring Methods 韩国快速眼动睡眠行为障碍患者无张力快速眼动睡眠的量化:人工与计算机辅助评分方法的比较

Journal of Korean Sleep Research Society Pub Date : 2014-12-31 DOI: 10.13078/JKSRS.14009

Ji‐Hoon Lee, Y. Jung, H. Cha, H. Rhee, Hye-Yoen Choi, W. Shin

{"title":"Quantification of REM Sleep without Atonia in Korean REM Sleep Behavior Disorder Patients: Comparison of Manual and Computer-Assisted Scoring Methods","authors":"Ji‐Hoon Lee, Y. Jung, H. Cha, H. Rhee, Hye-Yoen Choi, W. Shin","doi":"10.13078/JKSRS.14009","DOIUrl":"https://doi.org/10.13078/JKSRS.14009","url":null,"abstract":"Address for correspondence Won Chul Shin, MD, PhD Department of Neurology, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, 892 Dongnam-ro, Gangdong-gu, Seoul 134-727, Korea Tel: +82-2-440-6166 Fax: +82-2-440-7262 E-mail: shinwc@khu.ac.kr Objectives: The polysomnographic hallmark of rapid eye movement (REM) sleep behavior disorder (RBD) is loss of muscle atonia during REM sleep; REM sleep without atonia (RSWA). However, the International Classification of Sleep Disorders (ICSD) criteria did not suggest optimized diagnostic value of RSWA and how to score muscle activity during REM sleep. Many previous studies have been tried to figure out the objective quantitative cut-off values of RSWA. We investigated RSWA in Korean RBD patients compared with normal control, to quantify the cut-off value in diagnosis of RBD, using both manual and computer-assisted scoring methods (REM atonia index, RAI). Methods: We retrospectively analyzed polysomnography and clinical data of 40 patients, 10 age-matched controls by ICSD-3 criteria. The quantitative analysis of chin electromyography density during REM sleep was done by both manual and computerized method. The RSWA and RAI were compared within two groups. Results: In computerized method, the mean RAI of RBD patient was 0.66±0.20, and 0.93±0.38 in control group (p<0.001). Also, in manual method, RSWA were also significantly increased within RBD patient compared with normal controls (tonic activity: 9.1±10.3 vs. 0.1±0.2, phasic activity: 7.5±6.4 vs. 1.6±1.2, p<0.002). Conclusions: We quantify the characteristics of RSWA in Korean RBD patients and suggest that we may diagnose RBD who present RSWA with 4.1% or more increase in total REM sleep duration and RAI more than 0.84. J Korean Sleep Res Soc 2014;11(2):50-56","PeriodicalId":243131,"journal":{"name":"Journal of Korean Sleep Research Society","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116411218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Circadian Variation of Stroke Onset and Other Clinical Characteristics: A Single-Center Study 脑卒中发作和其他临床特征的昼夜变化:一项单中心研究

Journal of Korean Sleep Research Society Pub Date : 2014-12-31 DOI: 10.13078/JKSRS.14011

Y. Koo, Sungwook Yu, Kyung-Hee Cho, Ki-Young Jung

{"title":"Circadian Variation of Stroke Onset and Other Clinical Characteristics: A Single-Center Study","authors":"Y. Koo, Sungwook Yu, Kyung-Hee Cho, Ki-Young Jung","doi":"10.13078/JKSRS.14011","DOIUrl":"https://doi.org/10.13078/JKSRS.14011","url":null,"abstract":"Cardiovascular events tend to occur mostly in the morning. Stroke is also known to occur most frequently in the morning. Although previous studies speculated that circadian rhythm of blood pressure could affect the occurrence of stroke, a recent study showed that there is no significant circadian variation of blood pressure in stroke patients. Furthermore, circadian variation of these clinical characteristics in stroke patients might affect prognosis after using tissue plasminogen activator. Therefore, the knowledge of circadian variation of various clinical characteristics might help in understanding these differences in prognosis among stroke patients. However, circadian variability in stroke occurrence has not been properly evaluated in Korean stroke patients and there is no systematic studies regarding the circadian variation of clinical characteristics in stroke patients. Therefore, we tried to delineate whether the time of symptom onset in stroke patients follows circadian rhythm using Cosinor analysis and to identify clinical characteristics which show similar circadian distribution as that of symptom onset time in stroke patients.","PeriodicalId":243131,"journal":{"name":"Journal of Korean Sleep Research Society","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128177126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Sleep Disorder Caused by Proctalgia Fugax 由直肠痛引起的睡眠障碍

Journal of Korean Sleep Research Society Pub Date : 2014-12-31 DOI: 10.13078/JKSRS.14013

Ki Hoon Kim, K. Cho, Yang-Je Cho, K. Heo

引用次数: 0

Polysomnography Findings of Rapid Eye Movement Sleep Behavior Disorder in Korean Young Age Population 韩国青少年快速眼动睡眠行为障碍的多导睡眠图研究

Journal of Korean Sleep Research Society Pub Date : 2014-12-31 DOI: 10.13078/JKSRS.14010

P. Song, E. Joo

{"title":"Polysomnography Findings of Rapid Eye Movement Sleep Behavior Disorder in Korean Young Age Population","authors":"P. Song, E. Joo","doi":"10.13078/JKSRS.14010","DOIUrl":"https://doi.org/10.13078/JKSRS.14010","url":null,"abstract":"Objectives: Rapid eye movement (REM) sleep behavior disorder (RBD) is a parasomnia manifested by vivid dreams associated with complex motor behavior during REM sleep. It was originally described as a parasomnia in older men, however it is now recognized as a disorder of all ages and both sexes. We determine clinical characteristics of young age RBD patients who visited single sleep center in Korea. Methods: This is a retrospective chart review of RBD patients visiting single sleep center from August, 2003 to August, 2014. Patients with history of RBD were evaluated with overnight polysomnography (PSG). The PSG re sults were compared between young (<40 years old) and elderly (40 years or older). Results: The total of 149 patients (young RBD: n=22, 14.8%, elderly RBD: n=127, 85.2%) were included. Mean age upon diagnosis were 24.97±7.42 years (male: n=17, 77.3%) for young age RBD, and 64.40±8.73 years (male: n=82, 64.6%) for elderly RBD patients. PSG results reveled young age RBD patients had longer total sleep time (416.16±44.19, 345.73±78.03, p<0.001), higher sleep efficiency (87.60 ±6.90, 76.85±14.07, p<0.001), less arousal index (17.85±20.81, 23.14±12.15, p<0.001). Three patients in young age RBD group were also diag nosed with narcolepsy. Conclusions: This is the first study to evaluate PSG findings in young age RBD in Korean. The young age RBD sleep longer and better, with less arousal. Further on they have associated with sleep talking and walking, and narcolepsy. While few previous reports indicated association with medication use, our young age population was not related to medication effects. J Korean Sleep Res Soc 2014;11(2):57-60","PeriodicalId":243131,"journal":{"name":"Journal of Korean Sleep Research Society","volume":"183 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126780807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Critical Oxygen Desaturation from Obstructive Sleep Apnea 阻塞性睡眠呼吸暂停的临界氧饱和度

Journal of Korean Sleep Research Society Pub Date : 2014-12-31 DOI: 10.13078/JKSRS.14012

Doh-Eui Kim, K. Yang, Saeromi Kim, H. Oh, Dushin Jeong, Hyung-Kook Park

引用次数: 0

Sleep Disorders in Patients with Parkinson's Disease 帕金森病患者的睡眠障碍

Journal of Korean Sleep Research Society Pub Date : 2014-12-31 DOI: 10.13078/JKSRS.14008

Sooyeoun You, Y. Cho

{"title":"Sleep Disorders in Patients with Parkinson's Disease","authors":"Sooyeoun You, Y. Cho","doi":"10.13078/JKSRS.14008","DOIUrl":"https://doi.org/10.13078/JKSRS.14008","url":null,"abstract":"Received November 12, 2014 Revised November 27, 2014 Accepted November 27, 2014 Address for correspondence Yong Won Cho, MD, PhD Department of Neurology, Dongsan Medical Center, Keimyung University College of Medicine, 56 Dalseong-ro, Dong-gu, Daegu 700-712, Korea Tel: +82-53-250-7831 Fax: +82-53-250-7840 E-mail: neurocho@gmail.com Parkinson’s disease (PD) is traditionally characterized by a combination of the cardinal motor symptoms of bradykinesia, rigidity, tremor-at-rest, and loss of postural reflex. However, several recent studies have emphasized frequency and serious impact on quality of life by various non-motor symptoms including cognitive abnormalities, mood disorders, autonomic dysfunctions, impaired olfaction, pain, and sleep disorders. Sleep disorders are being increasingly recognized as main non-motor symptom of PD. Sleep disorders, which include the excessive daytime drowsiness, sleep attack, sleep fragmentation, restless legs syndrome, nightmare, and rapid eye movement sleep behavioral disorder are complained by the many of PD patients. Clinical feature, pathophysiology, evaluation tool, and treatment option of sleep disorders are discussed in this review. J Korean Sleep Res Soc 2014;11(2):45-49","PeriodicalId":243131,"journal":{"name":"Journal of Korean Sleep Research Society","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121643795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

A Patient with Obstructive Sleep Apnea Syndrome Presenting with REM Sleep Behavior Disorder Mimicking Symptoms 阻塞性睡眠呼吸暂停综合征患者表现为REM睡眠行为障碍模仿症状

Journal of Korean Sleep Research Society Pub Date : 2014-12-31 DOI: 10.13078/JKSRS.14014

E. Oh, D. Kim, Ki-tae Kim, S. Kim, Kyung-Ha Noh, J. Cho

引用次数: 1

Sleep Patterns of Middle & High School Students in Seoul and Their Perceptions of Their Own Sleep 首尔初高中学生的睡眠模式及其对自身睡眠的认知

Journal of Korean Sleep Research Society Pub Date : 2014-06-30 DOI: 10.13078/JKSRS.14005

J. Kim, H. Moon, Hyang-Woon Lee

{"title":"Sleep Patterns of Middle & High School Students in Seoul and Their Perceptions of Their Own Sleep","authors":"J. Kim, H. Moon, Hyang-Woon Lee","doi":"10.13078/JKSRS.14005","DOIUrl":"https://doi.org/10.13078/JKSRS.14005","url":null,"abstract":"Objectives: To investigate the sleep patterns of Korean adolescents and the subjective perception on their sleep pattern and daytime functioning related to sleep status. Methods: The questionnaire survey was done in 2007 for students in middle and high schools located in Mokdong region in Seoul. The questionnaire included sleep/wake schedules both on school days and weekends, various questions regarding sleepiness and other sleep complaints, and morningness-eveningness scale. Results: The third year of middle school, the first and second year of high school students were enrolled. A total of 1,252 students (boy: 65.3%) participated in the survey. The average bedtime was 12:46 AM and 1:13 AM, respectively and the wake up time was 6:24 AM and 8:35 AM, respectively on school days and weekends. Total sleep time was 6.6±1.1, 5.89±1.1, and 5.65±0.9 hours on school days for students in the third year of middle school, the first year and the second year of high school, respectively. While 57% of students answered that they have sufficient sleep, only 36.7% of students reported they sleep sufficiently almost always. High school students reported shorter optimal sleep duration than middle school students. One third of students had a problem of daily or school life due to sleepiness. Conclusions: This study showed sleep deprivation on school days and compensating catch-up sleep on weekends in middle & high school students in Seoul. The perception of their sleep seems to be affected not only by current sleep status but also by the school year probably related to academic pressure.","PeriodicalId":243131,"journal":{"name":"Journal of Korean Sleep Research Society","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121152617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6