• 시큐리티연구
• /
• 제35호
• /
• pp.125-149
• /
• 2013

본 연구에서는 경호경비현장에서 이루어지고 있는 실제적인 경호경비원들의 경계근무와 CCTV 모니터링 요원들의 스트레스를 확인하고, 비교 평가하기 위해 심박동변이(heart rate variability)를 통하여 생체리듬의 변화를 관찰하였다. K대학교 경호학과 학생 9명을 대상으로 실제 근무와 유사한 환경에서 경계근무와 CCTV 모니터링근무를 150분간 실시하였다. 30분 간격으로 자율신경검사를 관찰한 결과 HRT는 모니터링 근무가 경계근무 보다 더 낮게 나타났으며, 안정시, 근무 30분과 60분보다 90분, 120분, 150분은 낮게 나타났다. SDNN은 모니터링 근무가 더 높게 나타났으며, 근무 30분과 60분 보다 근무 150분에서 더 낮게 나타났다. 자율신경검사에서는 TP는 근무형태에 따른 집단 간 차이는 나타나지 않았으며, 근무 30분 보다 근무 150분에 더 높은 시기적 차이를 보였다. 근무형태와 근무시간의 상호작용은 나타났다. LF는 근무 60분 보다 근무 150분에 높은 시기간의 차이를 보였다. HF는 모니터링 근무 집단에 높게 나타났으며, 근무 30분 보다 근무 120분과 150분에서 더 높게 나타났다. 근무형태와 근무시간의 상호작용도 나타났다. LF/HF ratio는 경계근무 집단이 더 높게 나타났으며, 시기 간에 차이와 함께 근무형태와 근무시간의 상호작용도 나타났다. 모니터링 근무가 경계근무보다 부교감신경활동이 더 활발함에 따라 더 낮은 심기능 활동을 보였다. 매일 반복되는 장기간의 모니터링 근무는 VDT증후군이나 신경피로에 노출될 가능성이 더 높은 것으로 나타났다.

• Journal of Acupuncture Research
• /
• 제22권3호
• /
• pp.137-144
• /
• 2005

본 저자는 2004년 3월 9일부터 2004년 5월15일까지 경희의료원 침구과 외래를 내원한 특발성 파킨슨병 환자를 대상으로 하여 파킨슨병 증상의 호전도를 판단하는 임상척도인 H-Y stage에 따른 HRV를 관찰한 결과 다음과 같은 결론을 얻었다. 1. 시간영역분석에서 H-Y stage I, II, III 그룹의 SDNN은 $28.21{\pm}10.10$, $22.25{\pm}11.26$, $14.57{\pm}5.31$으로 그룹 I과 그룹III 간에는 유의한 차이가 있었다(P<0.05). RMS-SD는 $19.23{\pm}13.27$, $14.63{\pm}6.44$, $6.44{\pm}2.32$ 으로 역시 그룹 I과 그룹III 간에는 유의한 차이가 있었 다(p<0.05). 2. 주파수영역분석에서 TP는 H-Y stage Ⅰ, II, III 그룹에서 각각 $499.86{\pm}345.45$, $243.72{\pm}212.22$, $99.44{\pm}51.01$로 ANOYA 검정결과 p-value가 0.007로 매우 유의 있었으며, 사후 검정에서는 그룹 I과 II, 그룹 II와 III에서는 유의한 차이가 없었으나 그룹 I과 III에서는 매우 유의한 차이가 있었다(p<0.01). LF는 H-Y stage I과 III 그룹에서 유의한 차이가 있었으나(p<0.05) VLF, HF, LF norm HF nonm LF norm, LF/HF ratio에서는 각 그룹 간 유의한 차이가 없었다. 3. SDNN, RMS-SD, TP가 UPDRS 총점이 증가함에 따라 유의성 있게 감소하는 경향 (p<0.05)을 보이는 것으로 보아 파킨슨병이 진행함에 따라 자율신경계의 활동성이 저하될 것으로 보인다.

• 한국산림과학회지
• /
• 제103권1호
• /
• pp.129-136
• /
• 2014

본 연구는 산림환경 이용 빈도에 따라 근로자의 스트레스 수준에 어떤 차이가 있는지를 알아보고자 했다. 이를 위해 정서적 스트레스와 소진 경험이 많은 것으로 알려진 감정노동 직업군 중에서 연구대상자를 선정했다. 수도권 소재 의료기관과 상담기관의 직원 370명을 대상으로 사전 설문조사를 실시하여 산림이용 빈도에 따라 이들을 분류했다. 이후 캠프와 대조군 검사에 서면으로 참여의사를 밝힌 인원을 모집한 결과, 최종적으로 산림환경 이용 빈도가 높은 집단이 27명, 산림환경 이용 빈도가 낮은 집단 42명의 총 69명이 연구에 참여하였다. 이들을 대상으로 Worker's Stress Response Inventory (WSRI), Recovery Experience Questionnaire (REQ), Maslach Burnout Inventory-General Survey (MBI-GS)와 같은 심리사회적 변인과 심박변이도(heart rate variability), 코티솔(cortisol), 자연살해세포(Natural Killer cell) 등의 생물학적 변인 검사를 실시한 결과, 산림환경 이용 빈도에 따라 스트레스 수준에 차이가 나타나는 것을 확인할 수 있었다. 산림이용 빈도 "높음" 집단은 우울, 직무증상과 스트레스 반응 총점(WSRI)이 "낮음" 집단에 비해 유의미하게 적었으며, 스트레스에서의 회복경험 총점(REQ) 역시 통계적으로 유의하게 "낮음" 집단보다 높았다. MBI-GS의 정서적 고갈과 직업성취감 감소, 총점에서도 "높음" 집단이 유의하게 낮은 것을 확인할 수 있었다. 대부분의 다른 지표에서도 동일한 경향성이 관찰되었다. 생물학적 변인에서는 통계적으로 유의한 결과는 없었으나 "높음" 집단은 심박변이도의 SDNN 및 RMSSD, TP 지표와 자연살해세포 활성도에서 높은 수치를 나타내었고, 코티솔은 낮았다. 이 결과는 평소 산림환경을 자주 이용하는 사람들이 심리사회적인 스트레스가 낮고, 생물학적으로도 더 스트레스를 적게 받는 상태에 있음을 의미한다.

• 대한한방내과학회지
• /
• 제30권3호
• /
• pp.510-524
• /
• 2009

Objective : This study was designed to find the correlation between Sasang Constitution and heart rate variability(HRV). Method : There were 665 subjects (280 men and 385 women), between 39 and 72 years old. in a rural community. Sasang Constitution was diagnosed by a Sasang constitutional specialist using PSSC (Phonetic System for Sasang Constitution), face and tongue photo and checkup-list. A structured-questionnaire was used to assess the general characteristics. HRV was recorded using SA-2000 (medi-core). HRV was assessed by time domain and by frequency domain analysis. Metabolic syndrome was defined on the basis of clustering of risk factors, when three or more of the following cardiovascular risk factors were included : blood pressure, fasting blood sugar, triglyceride HDL-cholesterol, and abdominal obesity (waist). Because of the skewness of the data, logarithmic transformation was performed on the absolute units of the spectral components of HRV, and the resulting logarithmic values and normalized units were compared between the groups by a logistic regression. The 95% confidence interval (CI) of the odds ratio was used and calculated from the data laid out for a cross sectional study. Results : 1. Odds ratios of Taeeumin and Soeumin in female adults below 60 years old were significantly lower than that of Soyangin in LF norm and LF/HF ratio. Odds ratios of Taeeumin and Soeumin in female adults below 60 years old were significantly higher than that of Soyangin in HF norm. 2. There was no significant correlation between HRV and Sasang Constitution in female adults from 60 years old and over. 3. There was no significant correlation between HRV and Sasang Constitution in male adults. Conclusion : There is a statistically significant correlation between the HRV and Sasang Constitution. There is a tendency of increase in the sympathetic activity in Soyangin. There is a tendency of decrease in the parasympathetic activity in Taeeumin and Soeumin.

• 대한의료기공학회지
• /
• 제10권1호
• /
• pp.130-157
• /
• 2007

The purpose of this research is to seek for efficient health maintenance device and to suggest desirable daily habit, based on the inquiry on interrelationship between workers' daily lives and their heartbeat change level. The paper survey about general features, case history and daily habits was conducted on workers during medical examination in Jeollabukdo, and examined their change of heartbeat as well. The results of research deducted from data analysis are as follows; 1. There found very positive interrelations between time-domain analysis and frequency-domain analysis, and MHR and LF/HF ratio had negative connection with other analyses. 2. The recipient showed high time-domain analysis when they are younger, have worked shorter or have spouse, and it contributes to stable sympathetic nerve and parasympathetic nerve as it stimulates autonomic nervous system. 3. According to the result of frequency-domain analysis, recipients showed higher TP and LF when they are younger, and the highest HF when they are under 34.The level of VLF was higher for university graduates than the ones who finished high school. The recipients showed higher TP and HF when they don't have spouse, and lower TP, LF and HF when they have worked longer. 4. The level of RMSSD and TSRD was high for the people who don't have case history, and HF was high when they don't have any disease in progress. 5. According to the result concerning correlation of daily habits with time-domain analysis and frequency-domain analysis, cigarette, alcohol and sleeping hours don't affect heartbeat change, but the ones who regularly workout showed higher result in every analysis. It shows that the autonomic nervous system of recipients who regularly exercise response more actively. The result mentioned above suggests that the change of heartbeat is a direct index which shows the change of autonomic nervous system, and it depends on the exercise the most. Thus, workout is proved to be the best method in order for workers to take care of their health.

• 한국산학기술학회논문지
• /
• 제19권6호
• /
• pp.715-721
• /
• 2018

청각 및 후각의 다감각 자극을 통하여 에너지를 절감하기 위하여 불쾌해진 촉각을 보상함으로써 에너지는 절감하면서 근무자의 뉴로에너지(쾌적성, 집중력, 신체적 및 심리적 안정 등)는 증강시키는 연구를 하였다. 온도 $25[^{\circ}C]$, 상대습도 50[RH%], 조도 1,000[lux] 및 기류 속도 0.02[m/sec]의 항온 항습실에서 1/f의 변동리듬으로 청각을 자극하고 아로마 향기로 후각을 자극하여 실험을 진행하였으며, 접촉식으로 인체의 심리상태를 측정하는 뇌파, 학습능력 및 심박동변이도와 비접촉식으로 심리상태를 측정하는 진동이미지 방법을 사용하였다. 피험자는 신체적으로 활동하는데 지장이 없고, 심신의 안정과 집중력의 최대 상태를 가져오는 상대 ${\alpha}$파(8~13[Hz])의 활성도가 후두엽에서 높은 유형인 20대 대학생 8명(남성 4명, 여성 4명)으로 선정하였다. 측정자세는 쾌적한 열적 환경에서 의자에 착석해 안정을 취하고 있을 때의 활동량으로써 1met로 하였으며, 착의량 상태는 약 0.7clo로 통일하였다. 측정결과 쟈스민 향기와 변동리듬 a=1.106 음원의 다감각자극에서 감성 및 심신안정과 집중력이 가장 높아졌으며, 상대$M{\alpha}$파와 상대$M{\beta}$파가 각각 70.49[%], 89.72[%] 증가하였고, HRT는 38.09[%] 감소하였으며, 피로도와 긴장 불안은 각각 36.85[%], 15.54[%] 감소하였다.

• Korean Journal of Acupuncture
• /
• 제30권2호
• /
• pp.88-96
• /
• 2013

Objectives : In the acupuncture treatment of Korean Medicine, the Tonifying or Purging depending on how many times the needle is rotated has been used widely. However, there is little evidence about the optimal number of rotation. This study, therefore, was aimed to investigate the optimal number of rotation. Methods : Heart rate variation was measured before and after exercise in 20 healthy adults. Acupuncture was performed at PC6 immediately after exercise according to the protocol of each group without remaining. Pre-exercise and post-exercise measurements were compared and the rotation number that produced statistically significant difference was investigated. Results : Significant differences were found in the heart rate variation and R-R interval Average, between non-rotation group (control) and both of 15 times rotation group of tonifying and 6 times rotation group of purging. Conclusions : Significantly effective number of rotation in the effect of PC6 on the HR and RRAv was 15 times in the tonifying and 6 in the purging respectively.

• 산업융합연구
• /
• 제20권10호
• /
• pp.209-218
• /
• 2022

마사지 치료는 1회 치료만으로 통증을 경감시키고 스트레스를 이완시킵니다. 그러나 아직까지 1회 마사지 치료의 효과에 대한 객관적인 데이터를 확인한 연구가 없었습니다. 그래서 본 연구에서는 마사지 치료와 동일한 효과가 있는 것으로 보고된 척추 마사지 기구로 1회 치료를 실시하여 통증 경감과 스트레스 이완의 효과의 증거를 확인하고자 하였습니다. 10년 전부터 시각적상사척도 4점의 요통이 있었던 45세 남자 환자 1인을 대상으로 척추 마사지 기구를 실시한 1차 실험과 침상안정을 실시한 2차 실험을 실시하였습니다. 시각적상사척도 측정과 실시간으로 심박 변이도를 측정하여 자율신경계를 확인하였고 총 5회 혈액검사를 실시하여 스트레스 관련 혈액검사(코르티솔, 에피네프린, 노르에피네프린)를 실시하였습니다. 침상안정을 취한 2차 실험에 비해 척추 마사지 기구로 1회 치료를 받은 1차 실험에서 유의미한 통증 감소효과를 보였습니다. 또한 1차 실험에서 자율신경계 활성도 및 부교감 신경계의 활성도가 증가되어 있었으며 혈중 에피네프린과 노르에피네프린이 감소되어 있었습니다. 이것은 기존의 마사지 치료 효과와 동일한 결과이며 1회 척추 마사지 기구를 통해 얻어지는 효과의 증거라 사료됩니다.

• 동의신경정신과학회지
• /
• 제19권3호
• /
• pp.143-169
• /
• 2008

Objective: This study was to investigate the relation of what insomnia patients' symptoms with Heart Rate Variability(HRV), Pittsburgh Sleep Quality Index (PSQI) and Insomnia Questionaire(IQ). Methods: For this study, we carried out HRV, PSQI and IQ of 43 patients with insomnia who have come to Donguei oriental hospital of Donguei university from September 2007 to May 2008. We studied the relationship HRV with PSQI and IQ. For every symptom, this study classified the patients as none-symptom, symptom groups and analyzed each group's HRV, PSQI and IQ. Result : 1. The rate of xerostomia in female group is significantly higher than male group. 2. P1 (hypnagogic time), P3(awakening time), LF has negative correlation with age. The score of PI (hypnagogic time), P3(awakening time), P4(time of recoverable sleep) in the group whose age is more than 50 are higher than the group whose age is lesser than 50. 3. The frequency of using hypnotics(P6) in the group whose duration of onset are over 1 year was significantly higher than the score in the group whose duration of onset were below 1 year. 4. The accompanied symptoms in the group who started sleep disorder after stressor are higher than the number in the group whose duration of onset were poor-defined. 5. The drinking group have lower rate of anorexia, higher score of P1 (hypnagogic time) and TP than non-drinking group. 6. The score of P-total(general quality of sleep) have negative correlation with NNSO, HF, TP and positive correlation with LF/HF. 7. The score of P1(hypnagogic time) have negative correlation with LF. 8. The score of P5a(frequency of delayed hypnagogue) have positive correlation with LF/HF. 9. The score of P5e(frequency of cough or snoring) have negative correlation with RMSSD. 10. The score of I1a(degree of onset insomnia), I1b(degree of maintenance insomnia) have negative correlation with NN50, pNN50, HF. 11. The score of I1c(degree of termination insomnia) have negative correlation with RMSSD, NN50, pNN50, HF, TP and positive correlation with MHR, LF/HF. 12.. The score of P5i(frequency of night pain), LF/HF in the group with headache are higher than the group without headache. 13. The score of P5a(frequency of delayed hypnagogue), P5c(frequency of awakening for urine of stool) in the group with xerostomia are higher than the group without xerostomia. 14. The score of P9(degree of unrecoverable sleep) and I5a(degree of onset insomnia) in the group with chest discomfort are lower than the group without chest discomfort. 15. The score of P7(frequency of drowsiness for daytime) in the group with palpitation are lower than the group without palpitation. 16. The score of P5c(frequency of awakening for urine of stool), P5f(frequency of burning sensation), P5h(frequency of nightmare), I1c(degree of termination insomnia) in the group with burning sensation of upper trunk are higher than the group without burning sensation. 17. The score of NN50, pNN50, LF, TP in the group with anorexia are lower than the group without anorexia. 18. The score of P-total(general quality of sleep), P2(duration for sleep start) in the group with constipation are higher than the group without constipation. 19. The score of P4(recoverable sleep time) in the group with depression are higher than the group without depression. 20. In the group with anxiety, the score of P1(time of hypnagogue), P5a(frequency of onset insomnia) are lower and the score of I1b(degree of maintenance insomnia), I4(objective degree of impairment by insomnia) are higher than the group without anxiety. 21. The score of NN50, pNN50, HF, TP in the group with inertia are lower than the group without inertia. 22. The accompanied symptoms haver posirive correlation with P5f(frequency of burning sensation), P5h(frequency of nightmare), P5i(frequency of night pain) and LF/HF. Conclusion: This study provides insights into the complicated relations of the pattern of sleep disorder with many symptoms such as headache, chest discomfort, depression and any others. And this study showed that autonomic nervous system have important function in the regulation of sleep.

• 동의신경정신과학회지
• /
• 제21권4호
• /
• pp.21-39
• /
• 2010

Objectives : This study was to investigate the characteristics of the heart rate variability(HRV), types of insomnia and accompanying symptoms of 175 insomnia patients. Methods : For this study we carried out HRV, Inbody of 175 patients with insomnia who have come to Dongeui oriental hospital of Dongeui university from the period of Janaury 2008 to September 2010. We studied the association of the insomnia patients' age and gender with HRV, accompanying symptoms and the types of insomnia. The information of the accompanying symptoms and types of insomnia was based on each patients' progress note. Results : l. There was no significant differences in the characteristics of HRV between male and female. 2. The most frequent symptom shown among the insmonia patents' was headache(41.14%). 3. Comparing the symptoms between the gender, female patients had more dry mouth, alternative periodic chill and fever, and hot flush symptoms than the male patients. 4. Comparing the symptoms between the age groups(divided in two), the lower age group (20~59) had more dizziness and constipation symptoms than the higher age group (over 60). 5. Comparing the types of insomma between the age group, the higher age group (over 60) had more termination insomnia. 6. The types of insomnia of the entire insomnia patients were onset insomnia (73.1%), maintenance insomnia(20.6%), termination insomma(l7.1 %), shallow sleep (52.6%), listed by order of frequency. 7. The patients who takes hypnotics had more anorexia symptoms than the patients who doesn't take hypnotics. 8. There was no visible differences of the average fractal portrait between male and female. The age group of 20~30yrs. had the highest average fractal portrait, and the age group of 30~59yrs. the second highest, and the age group over 60yrs. the lowest. 9. The average of the regulation reserves of the autonomic nervous system(B2) - was lower than the regulation level of the ANS at the present (Bl). 10. When compared the priority of the function of the ANS, it showed that the proportion of HF($38.61{\pm}29.19%$)was the most, and than VLF($30.65{\pm}23.36%$), LF($20.04{\pm}19.13%$) the least. 11. The average of the compensation level of the central nervous system at present(Cl) - was lower than the compensation reserves of the CNS(C2). 12. The average of the control reserves of the cerebrum(D2) - was lower than the control level of the cerebrum at the present (Dl). 13. There was no visible differences between different sexes and ages in pulse rate. 14. The abdomen fat ratio above the line of the insomnia patients was 77.97% in male and 93.1% in female. Both sexes showed that insomnia patients had more abdomen fat that the standard, and female patients had more abd. fat than male patients. Conclusions : This study shows that the HRV of insomnia patients had no significant differences between gender. Fractal portrait, HF, LF and VLF of the insomnia patients are in inverse proportion to the age. The study of the Body Component Analysis showed that female had more abdomen fat than male, and both gender showed more abdomen fat than the standard. When looked into the accompanying symptoms of the insomnia patients, the symptoms show differences according to gender, age and hypnotics taking, as shown as below. In the entire patients, Headache was the most accompanying symptom. Female had more dry mouth, alternative periodic chill and fever, and hot flush symptoms than male. Higher age groups had more dizziness and constipation as accompanying symptoms than lower age groups. Patients who takes hypnotics had more anorexia than those who dont.