• Toxicological Research
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• 제19권1호
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• pp.29-31
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• 2003

It has been reported that the genetic variations in the Y chromosome has influence the blood pressure in some Caucasian male populations, but the effect in non-Caucasian population is unclear. In the present study, we examined the relationship between blood pressure and a HindIII RFLP of Y chromosome in 152 unrelated male individuals of ethnically homogeneous Korean origin. There were no significant differences in systolic and diastolic blood pressures between genotype groups, respectively. However, the frequency of A genotype in Korean population was much higher than those of Caucasian populations (P＜0.05). Therefore, the results of this study will con-tribute the better understanding the genetic characteristics of Y chromosome in Korean population.

• 대한의용생체공학회:의공학회지
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• 제33권3호
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• pp.155-162
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• 2012

Devices to measure the blood pressure of patients are being used without any calibration in a hospital. It is an important to show consistent values when any medical devices measure the same patients regardless they are sphygmomanometer or fully automatic electronic blood pressure meter. We compared sphygmomanometer and fully automatic electronic blood pressure meters with standard digital blood pressure monitor (SDBPM) to evaluate the consistency of the small healthy subjects. We measured the blood pressure from six healthy subjects (three of 20~40 years and three of 40~60 years old). Two sphygmomanometer and two fully automatic electronic blood pressure meters were used and compared with the SDBPM. Blood pressures measured from right and left arms each and were compared. All six healthy subjects showed normal blood pressure values. In general, left blood pressure values showed higher values than right side. Comparing SDBPM, with the other monitors, the systolic pressure showed ${\pm}$ 34.8% difference and ${\pm}$ 33.3% for the diastolic pressure. Correlation between SDBPM and Sphygmomanometer was 0.59~0.71, and 0.50~0.70 for fully automated digital BP monitors. It fell in grade-D when we apply the BHS(British hypertension society). AAMI(American association for the advancement of medical instrumentation) also showed unsatisfactory results for the mean value (${\leq}$ 5 mmHg) and standard deviation (${\leq}$ 8 mmHg). We tested sphygmomanometer and fully automatic electronic blood pressure meters and compared with a standard digital blood pressure monitor. All devices showed inconsistent blood pressures. A reliable calibration system is highly needed for all devices in all hospitals.

• Journal of Korean Biological Nursing Science
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• 제11권1호
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• pp.68-76
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• 2009

Purpose: The purpose of this study was to evaluate the hemodynamic changes in degree and duration that occur during Valsalva maneuver (VM). Furthermore, we wanted to investigate the patterns and mechanisms of physiological hemodynamic control. Method: Thirty six healthy college students were recruited from Y university. Each participant was provided with written informed consent. Blood pressure (BP), heart rate (HR), cardiac output (CO) were continuously recorded using the Finometer. Result: During the phase I of VM, means of systolic and diastolic pressures were increased by 32.15% and 38.28%, respectively, compared with basal values. HR and CO were decreased by 9.91% and 13.01%, respectively. Immediately after the maneuver (phase III), systolic and diastolic pressures were decreased by 5.05% and 6.24%, respectively, compared with those obtained in the phase II. HR and CO were elevated by 13.33% and 11.93%, respectively, compared to the levels of earlier phases. BPs were represented with overshoot in the phase IV, and recovered by baseline values about 20 sec after VM. Conclusion: These results demonstrated that hemodynamic changes are variable in the event of VM even in healthy humans. It will be valuable to accumulate more quantitative hemodynamic information in special populations such as the elderly and the patients with cardiovascular problems.

• 대한정형도수물리치료학회지
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• 제9권2호
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• pp.47-58
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• 2003

To closely examine the effects of the massage treatment as one method of curing hypertension by exploring the effects that one-time circulation-centered massage has on a hypertensive's blood pressure, this study selected as the subject ten among fifty-year-old essential hypertensives visiting N clinic, and measured and compared their blood pressures before and after I gave them massage. After stabilizing them, I measured their blood pressures. In their prone and supine postures, I gave them rubbing massage for twenty minutes from positions proximal to their hearts to ones distal from their hearts to help their artery circulation and circulation-centered stroking massage for ten minutes from positions distal from their hearts to ones proximal to their hearts to help their vein circulation. After the massage, I had them rest for five minutes and measured their blood pressures. Regarding each item analyzed, I calculated the mean and standard deviation before and after the massage. The difference before and after the massage was tested by corresponding t-test and the level of significance was made p<0.05. The findings are as follows. First, systolic pressure was $157.70{\pm}7.48$ before the massage and $143.00{\pm}9.39$, which is less than before the massage, after the massage, showing statistically significant difference (p<.05). Secondly, diastolic pressure was $97.80{\pm}6.56$before the massage and $95.20{\pm}5.18$, which is less than before the massage, after the massage, not showing statistically significant difference (p<.05).

• 기본간호학회지
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• 제7권3호
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• pp.466-478
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• 2000

The purpose of this study was to identify the effects of music therapy on anxiety of cesarean section wemen. The research design was a nonequivalent control group non-synchronized design. The subjects of this study were 65 cesarean section wemen scheduled for surgery. The study was conducted from October 15, 1999 to January 5, 2000. Two groups consisted of subjects assigned : one the experimental group(33 wemen), and the other the control group(32 wemen). The music therapy was performed 3 times to experimental group just before surgery day, on surgery day. The level of anxiety was measured by State Anxiety Inventory, blood pressure, pulse rate, respiratory rate. The data were analyzed using descriptive statistics, $x^2-test$, t-test, Repeated measures of ANCOVA. The results of study were as fellows : 1) State anxiety scores were significantly different between the experimental group and the control group after music therapy. 2) Systolic blood pressures and diastolic blood pressures were significantly different between the experimental group and the control group after music therapy. 3) Pulse rates were significantly different between the experimental group and the control group after music therapy. 4) Respiratory rates were significantly different between the experimental group and the control group after music therapy. According to these results, music therapy can be regarded as an effective nursing intervention that relieves anxiety of cesarean section wemen.

• Journal of Nutrition and Health
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• 제25권2호
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• pp.132-139
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• 1992

A study was conducted to compare urinary Ca excretion and factors influencing urinary Ca excretion in 30 young and 62 middle-aged Korean women. Mean daily intake levels of total protein and P were significantly higher in middle-aged women but Ca and animal protein intake levels of the two groups were similar. The average percentage of daily Ca intake from milk and milk products in young women was 45% while in middle-aged women it was about 24% The frequency of milk consumption was inversely correlated with blood pressures of the subjects. Mean 24-hour urinary calcium excretion in young and middle-aged women were 163.7mg and 174.9mg respectively. The difference was not significant. Menopause of the mid-dle-aged women did not affect urinary calcium levels. However the proportion of subjects with more than 250mg of Ca in 24-hour urine tended to be higher in middle-aged group Factors significnatly correlated with urinary Ca excretion of subjects were systolic and diastolic The study verifies the need for more systematic studies on Ca requirements and the interrelation-ship among Ca and na metabolism blood pressures and bone loss in the middle-aged Korean.

• 농촌의학ㆍ지역보건
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• 제42권1호
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• pp.13-23
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• 2017

이 연구는 장항제련소 주변 지역 주민들을 대상으로 중금속 노출에 의한 인체영향을 파악하기 위해 수행된 환경역학조사 결과 중 혈중 중금속 농도와 혈압 사이의 관계를 평가하기 위해 수행되었다. 이 연구에는 제련소에서 4km 이내에 거주하는 570명의 30세 이상 성인 남녀가 포함되었으며 남녀별로 혈중 카드뮴, 수은 및 납 농도를 각각 3분위로 나눈 후 군별로 수축기 및 이완기 혈압의 차이를 각각 비교하였다. 또한, 다중회귀분석을 통하여 남녀별로 수축기 및 이완기혈압에 영향을 주는 위험요인으로서의 중금속을 파악하였다. 남자의 경우는 혈중 카드뮴과 수은의 농도별 군에 따라 수축기 혈압 및 이완기 혈압의 평균에 유의한 차이를 보였으나 여자의 경우는 모든 중금속의 3분위 군에서 수축기 및 이온기 혈압의 평균이 유의한 차이를 보이지 않았다. 다중 회귀 분석의 결과에서는 남자의 경우 연령과 체질량 지수 그리고 혈중 카드뮴 농도가 혈압에 영향을 주는 위험요인으로 나타났고, 여자의 경우는 연령과 체질량 지수, 음주 및 흡연, 그리고 혈중 수은이 혈압에 유의한 영향을 주었다. 종합해보면, 장항 제련소 근처에 거주하는 주민들은 일반인구 집단과 비교해 볼 때, 매우 높은 농도의 혈중 카드뮴, 납 수치를 보여 이들은 과거 직업적 또는 환경적으로 고농도의 중금속에 노출된 것으로 판단되며, 이러한 고농도 노출 집단에서의 유해 중금속 노출, 특히 카드뮴과 수은이 혈압 상승에 유의한 영향을 주는 것으로 확인되었다. 따라서 이들을 대상으로 추가적인 중금속 노출을 예방하기 위한 노력과 혈압 및 심뇌혈관질환 발생에 대한 지속적인 모니터링이 이루어져야 할 것으로 판단된다.

• 한국산업정보학회논문지
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• 제25권3호
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• pp.1-10
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• 2020

본 논문에서는 시계열 심전도 (Electrocardiogram: ECG) 및 광전용맥파 측정센서 (Photoplethysmography: PPG)을 이용하여 혈압을 추정하는 알고리즘을 제안한다. 혈압 (Blood pressure: BP)을 추정하기 위해 주기적 입력 신호를 생성하고 차동 및 임계값 방법에 따라 잡음을 제거한 다음 합성곱 신경망 알고리즘을 기반으로 하여 수축기 혈압과 이완기 혈압을 예측한다. 본 논문에서 사용된 데이터는 MIMIC 데이터베이스에서 총 3.1GB의 49명의 환자 데이터를 사용하였다. 실험결과 수축기 혈압의 평균 제곱근 오차는 5.80mmHg, 이완기 혈압의 예측 오차는 2.78mmHg을 나타내었다. 또한, 영국 고혈압 협회가 제안한 혈압계 평가 방법을 적용하였을 때, 최고 성능인 등급 A를 만족함을 확인할 수 있었다.

• 대한간호학회지
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• 제31권6호
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• pp.1034-1043
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• 2001

To determine the frequency of past and present obesity among patients with NIDDM and to identify the differences of body fat, blood pressure and C-peptide/glucose ratio according to obese diabetic patients (BMI$\geq$25 kg/$m^2$) and nonobese (BMI<25 kg/$m^2$). Also the final factor is to observe the anthrometric change patterns in the study. Method: The weight at 20 years-old, previous maximal body weight, and acute weight loss were queried. Current height, body weight, BMI, waist & hip circumferences, waist-hip ratio, skinfold thicknesses, blood pressure, fasting blood glucose, and fasting C-peptide were measured in one hundred sixty-seven NIDDM patients. The differences of the parameters ccording to obese and nonobese, and three anthropometric change patterns were analyzed. Result: Results were as follows: 1. 66.5 % of the NIDDM patients had a history of past obesity as assessed by their maximum weight, while only 33.2% of them were currently obese (p's < 0.001). 2. The waist & hip circumferences, skinfold thicknesses, systolic, diastolic & mean arterial blood pressure in obese patients were greater than those of nonobese patients (all p's < 0.001). 3. The waist and the hip circumferences, and skinfold thicknesses (subscapula & triceps) were highest among the obese-obese group. WHR and abdominal skinfold thickness in the obese-obese and obese-nonobese groups were higher than those in the nonobese- nonobese group. Systolic & diastolic and mean arterial blood pressures in the obese-obese group were higher than those of obese-nonobese and nonobese-nonobese groups(all p's < 0.005). 4. The abdominal and subscapular skinfold thicknesses in female diabetic patients were greater than those of male patients (all p's <0.0001). Conclusion: Although most Korean NIDDM patients were previously obese, many of them were not obese during the course of the study. Greater central and upper body adiposicity and higher blood pressure was shown in obese diabetic patients. Also, greater central and upper body adiposicity was demonstrated in female diabetic patients.

• Journal of Nutrition and Health
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• 제21권5호
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• pp.305-316
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• 1988

The purpose of this research was to determine the relationship of the dietary nutrients to blood pressure among preschool children in Seoul and to concurrently study the effect of seasonal variance on the aforementioned relationship. The subjects of the study consisted of 203 preschool children aged four to six years. Anthropometric measurements of height, weight, pulse rate and blood pressure, urinary excretion of five cations(Na, K, Ca, P, Mg), creatinine and urea nitrogen and dietary questionaires concerning sodium, potassium calcium and phosphorus were taken during the two periods of summer(Aug. 1986)and winter(Feb, 1987). The results obtained are summarized as follows: 1) The daily urinary excretion of five cations, creatinine and urea nitrogen is summer and winter was as follows; The sodium content was 57.8 mEq in the summer and 59.4 mEq in the winter ; potassium 20.4 mEq and 23.0 mEq, respectively ; calcium, 5.5 mEq and 3.6 mEq, respectively ; and phosphorus, 27.4 mEq and 19.9 mEq, respectively. Only calcium and phosphours excretions in the urine showed significant differences per season(p<0.05). 2) The average dietary intake per day of sodium was 2349mg in the summer and 2155mg in the winter ; potassium consumption was 1425mg in the summer and 1448mg in the winter ; intake of calcium was 472mg in the summer and 500mg in the winter ; and phosphours consumption was 642mg in the summer and 634mg in hte winter. The sodium-to-potassium consumption ratio 1.6 and 1.5, respectively, in the summer and in the winter and the calcium-to-phosphorus ration was 0.7 in the summer and 0.8 in the winter. The dietary calcium intake showed significant differences between the seasons. 3) The principal source of sodium consumption among preschool children was from seasoning-including talbe salt, soy sauce and instant sauce-which accounted for higher then 45% of the sodium intake in both seasons. The main source of potassium was frutis and vegetables which accounted for 29.6% of the potassium intake in the summer and 25.7% in the winter. Milk and milk products were the primary dource of calcium(higher then 40% in both seasons) 4) In the summer, urinary phosphours levels were weakly reated to systolic blood pressures. (0.05