• Proceedings of the KOSOMBE Conference
• /
• v.1993 no.11
• /
• pp.163-166
• /
• 1993

It has been shown that some of physiological systems have nonlinear dynamics. The evidences of these nonlinear behaviors make us analyze physiological systems in the new viewpoint. And, nonlinear dynamics can be represented by chaotic behaviors, which is studied by several methods - correlation dimension, return map, power spectrum analysis, etc. This study is on the analysis of nonlinear characteristics of ECG. Data have been acquired from the 20 children (10 - 13 years old). and 30 students (20 -24 years old). We have calculated parameters HR, PR, VAT, TD, TRD from data. and estimated correlation dimension, return map, power spectrum. Results show the nonlinear characteristics of ECG.

• Proceedings of the KOSOMBE Conference
• /
• v.1996 no.11
• /
• pp.258-262
• /
• 1996

The physiological systems have nonlinear complex phenomena. Expecially, the flow of capillary blood vessel has a nonlinear dynamic system. Thus, this study analyzes nonlinear characteristics of the flow of capillary blood vessel in physiological systems using chaotic tools(phase space reconstruction, correlation dimension, largest lyapunov exponent). Experimental data have been acquired from examining 10 rabbits. The results of chaotic analysis showed a decreasing largest lyapunov exponent and correlation dimension according to increasement glocose index. And we also know the chaotic behavior.

• Journal of Biomedical Engineering Research
• /
• v.15 no.2
• /
• pp.151-158
• /
• 1994

It has been shown that many of physiological systems have nonlinear dynamics. The evidences of these nonlinear behaviors make us analyze physiological systems in the new viewpoint. And, some of these nonlinear dynamics can be represented by chaotic behaviors, which is studied by several methods-correlation dimension, return map, power spectrum analysis, etc. This study is on the analysis of nonlinear characteristics of ECG. After data have been acquired from 20 children (10-13 years old), and 30 students (20-24 years old). We have calculated parameters HR, PR, VAT, TD, TRD, TPD from data, and estimated correlation dimension, return map, power spectrum, time series. Results show the nonlinear and chaotic characteristics of ECG.

• Journal of The Korean Society of Integrative Medicine
• /
• v.3 no.3
• /
• pp.25-33
• /
• 2015

Purpose : The purpose of this study was to find out objective and scientific grounds on the effect of Spiral Balanced Taping(SBT) by examining physiological change according to pain reduction and understanding the relationship physiological change and pain. Method : 32 female students who was from 20 to 25 years old($22.06{\pm}1.13$). Regarding the range of pain, each 16 female students ranged in the right and the left. The subjects selected the most comfortable method of six taping methods related with trapezius. They were examined with four measurement methods(Visual Analogue Scale : VAS, Algometer, Digital Infrared Thermograph Imaging(DITI), and Cervical Range of motion : CROM) and measured before treatment, right after treatment, 30 minutes later after treatment and 60 minutes later after treatment. Result : According to the result of Repeated measure ANOVA, there was a significant difference with all four methods before and after treatment. In addition there was a significant difference in proportion to time. As a result of stepwise regression, VAS was the highest with Digital Infrared Thermograph Imaging(r2=0.136) and pressure pain threshold was the highest in the range of cervical motion. Conclusion : There was the effect of SBT to all four measurement method and it was effective with measuring VAS and DITI, or Algometer and CROM together.

• Journal of Korean Academy of Nursing
• /
• v.34 no.7
• /
• pp.1362-1371
• /
• 2004

Purpose: This study was to examine the effect of an obesity management program on the body weight, body-mass index, and physiological index of obese female high school students. Method: Students from one school were selected as the experimental group, and students from another school as a control group so the latter group wasn't exposed to the experiment. The experimental group and the control group were each organized with 20 students. The experimental group received 60 minutes of behavior modification once a week, for eight weeks. Result: The Body weight, and Body mass-Index of the experimental group significantly decreased after the obesity management program. Total-cholesterol, T-G, and LDL-C significantly decreased and HDL-C increased in the experimental group. Total-cholesterol, T-G, LDL-C and HDL-C between the experimental group and control group showed significant differences. Conclusion: These results indicate that the obesity management program had a great effect on decreasing the body weight and body-mass index of the female obese high school students, normalizing their physiological index. In conclusion, this program turned out to be one of the safest and most effective obesity-management methods that could be applied to female high school students.

• KOREAN JOURNAL OF CROP SCIENCE
• /
• v.48
• /
• pp.65-71
• /
• 2003

Sesame seed are one of the oldest oil-bearing crops known to man. Not only are they nutritious, they are physicologically beneficial. Because of these properties, the promotion of sesame as a crop is set to increase from now on. The lignan component of sesame, which has an antioxidative function, varies considerably. In addition, the seeds remain viable for longer than other crops. At low temperature, it has been reported that the seed remain viable for up to thirty years. This is due to the lignan content of the seeds. In the last twenty years, the mysteries of the natural chemistry of sesame seeds have been unravelled one by one. Up to now, the lignan component has been found to have an $\alpha$-tocopherol synergist effect, an anti-aging effect, a cancer suppressing effect, a hypertension reduction effect, an effect on the promotion of liver function, an effect on the control of the ration of unsaturated fat, and an effect on the synthesis of unsaturated fatty acids. The lignan component of sesame does not simply have an anti-oxidant function, but has diverse recently discovered physiological uses which make the study of lignan highly rewarding.

• Journal of Biomedical Engineering Research
• /
• v.16 no.3
• /
• pp.325-330
• /
• 1995

The distribution of circumferential strain of arterial cross-section Is highest at intima and lowest at adventitia. However, the circumferential strain is theoretically severe at Intima because there is strain concentration. The theoretical degree of the intimal strain can not be explained in physiological condition even though artery is physiologically normal. Physiological adaptation may be undertaken to strain concentration. However, it is not clear, yet. Residual strain of artery is eagerly studied. There is experimental evidence that residual strain exists in artery. When ring of artery is longitudinally cut, it is opened. Assumption is made that intimal strain concentration is reduced with the considel'ation of residual strain. This study experimentally attempts to quantify the effect of residual strain on circumferential strain which is determined under the assumption of zero strain with zero pressure.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
• /
• 2001.05a
• /
• pp.225-230
• /
• 2001

Intensity of background noise is a factor significantly affecting both subjective evaluation of experienced stress level and associated electroencephalographic (EEG) responses during mental load in noisy environments. In the study on 27 subjects we analyzed the influence of the background white noise (WN) intensity on psychophysiological responses during a word recognition test. Electrocortical activity were recorded during baseline resting state and 40 s long performance on 3 similar Korean word recognition tests with different intensities of background WN (55, 70 and 85 dB).. An important finding in terms of physiological reactivity was similarity of all physiological response profiles between 55 and 70dB WN, i.e., none of physiological variables differentiated the two conditions, while 85dB WN resulted in a significantly different profile of reactions (higher fast beta power in EEG spectra). This condition was characterized by highest subjective rating of experienced stress, had more fast beta activity and had tendency of right hemisphere dominance, emphasizing the role of brain lateralization in negative affect control.

• The Korean Journal of Food And Nutrition
• /
• v.22 no.4
• /
• pp.606-611
• /
• 2009

This study was conducted to develop a high value pear Makgeoly that possessed the physiological functionality of pears and rice. To accomplish this, the effects of the addition of pears on the alcohol fermentation of Korean traditional rice wine, Makgeoly were investigated. The total acidity contents were unchanged for 9 days of fermentation after the addition of pear to the mash, however, it decreased by approximately 0.13% after 9 days. Additionally, the ethanol contents increased to 16.0% after 5 days of fermentation, after which they did not change significantly. The residual reducing sugar and free sugar content were decreased after 7 days and 5 days of fermentation, respectively. The total acceptability was the best in the Makgeoly that contained grated pear after 10 days of fermentation. Additionally, antihypertensive angiotensin Iconverting enzyme inhibitory activity was found to be greater than 80% in all pear Makgeoly, but the fibrinolytic activity, SOD-like activity and antioxidant activity were weakened. Based on these results, Makgeoly that was brewed by the addition of 20% grated pear into the fermented broth from fermentation at $20^{\circ}$ for 10 days has the potential to become a new functional Korean traditional Makgeoly with high acceptability and antihypertensive properties.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.18 no.4
• /
• pp.1078-1082
• /
• 2004

The purpose of this study was to investigate the possibility of medicinal plants application as an edible functional food resources. We carried out to develop a traditional functional beverage by using hot-water extraction of 4 medicinal plants(Polygonatun sibiricum, Ophiopogonis radix, Lycii fructus, Schizandriae fructus) and we examined the effects of drink on physiological function in aorta relaxation. Thus, the effect of developed beverage on phenylephrine induced contraction of isolated rat thoracic aorta. Contractile force was measured with force displacement transducer under 1.5g loading tension. Brix, pH and titratable acidity of developed drink were 9.5%, 3.3 and 0.22%. The approximate nutritional composition of beverage was carbohydrate, 5.98%, crude protein, 0.70%, crude fat, 0.20% and crude ash, 0.20%. Developed beverage contained K(4.00 ㎎%), Na(3.68 ㎎%), Ca(2.54 ㎎%), Mg(1.60 ㎎%) and Fe(0.29㎎%). The contraction forces by injection of phenylephrine in isolated thoracic aorta were significantly low in each experimental groups compared with control groups, These results that developed drink with medicinal plants can be used as a functional material to decrease aorta contraction.