Motivation Cardiovascular disease (CVD) is one of the most important causes of mortality and morbidity in South Africa. The major risk factors are prevalent in both the developed and developing areas of the world, among all social classes, and are of similar public health significance in all countries regardless of their level of development. This indicates that much scope remains for further reducing coronary heart disease (CHD) death rates in developed countries and for preventing the emerging CHD epidemic in poorer nations. This study aims at identifying the beliefs of the South African adult population regarding food and cardiovascular health and to therefore identify target groups for education programs. Objectives To investigate the beliefs of South African adults towards the importance of the link between food and cardiovascular health, especially between the different races, living standards, age and gender groups. Also to determine whether this population looks for the Heart Foundation symbol on food products, as well as where the link between food and heart disease ranks in terms of importance compared to other highly prevalent diseases. Method The design of the study was a randomized cross-sectional study. Trained field workers administrated questionnaires by conducting face-to-face interviews with consumers in the language of their choice. Two thousand South African individuals (1 6 years and older) were randomly selected from metropolitan areas in South Africa. The data was weighted to be representative of the total South African metropolitan consumer population, based on gender, age and race distribution (n=10 695 000). The total population was representative of both genders (5 423 000 men and 5 272 000 women) and major race groups (2 615 000 whites, 6 252 000 blacks, 1 255 000 coloureds and 573 000 Indians), from different age and living standards groups. The market research group, MARKINOR, was contracted to collect the data. Quantitive data was statistically analysed in order to generate the relevant descriptive statistics, cross tabulations and statistical tests. Results The majority of the population found the link between food and cardiovascular risk related health issues to be important, especially the higher LSM groups within the different race groups. The link between food and weight loss was considered the least important compared to other cardiovascular risk factors (cholesterol, blood pressure, diabetes, healthy blood vessels). Only 35% of the study population agreed with the statement that they look for the Heart Foundation symbol, while 46% disagreed with the statement. There was a greater tendency for the higher LSM groups to look for the Heart Foundation symbol than the lower LSM groups. Heart disease was considered just as important and in some cases more important when compared with HIVIAIDS and cancer. Conclusions This study shows that the metropolitan South African adult population is aware of the importance of food on CVD. Nutritional education needs to be aimed at both genders and all ages of the lower socio-economic groups of South Africa. The reasons why such a large percentage of the South African metropolitan adults do not look for the Heart Foundation symbol, or are undecided about it, needs to be investigated and addressed. Prevention programs promoting a healthy lifestyle, which would address the risk factors associated with CVD, should be received with a positive attitude. / Thesis (M.Sc. (Nutrition))--North-West University, Potchefstroom Campus, 2005.

Background: Normative values of VO2max have been developed or updated based on the estimated VO2max, but measured normative values of VO2max have not been developed yet. VO2max has been reported to relate to coronary heart disease (CHD) risk factors, yet most of the studies have used estimated VO2max to compare CHD risk factors. Therefore, the purpose of this study was to develop norms for VO2max from the Ball State University (BSU) Adult Physical Fitness Program cohort that represented percentiles based on the measured VO2max. In addition, this study evaluated the relationship between measured VO2max and six coronary heart disease (CHD) risk factors, which include Body Bass Index (BMI), high density lipoprotein cholesterol (HDL-C), glucose, triglyceride (TG), total cholesterol (TC) and resting blood pressure (BP).Methods: Subjects were healthy men (N=1,867) and women (N=1,253), ranging in age from 19 to 75 years, who completed the standard BSU Adult Physical Fitness Program quiet and exercise testing sessions between 1971 and 2000, with the graded exercise testing (GXT) conducted with one of the following protocols including modified walking, running, Balke, Bruce, and BSU/Bruce ramp. To be included, subjects had to achieve respiratory exchange ratio (RER) >1.0 during their exercise test.Results: All subjects were classified into ten group determined by deciles of VO2max for each decade of age for males and females respectively. A linear regression showed that VO2max decreased 10.1% per decade (0.44 mi.kg'•min'•yr') for men and 9.7% per decade (0.32 ml•kg-l.min-l.yr') for women. There was no significant difference in the rate of agerelated decline in VO2max per decade between men and women or between deciles of VO2max. Also, the percent of subjects with an exercise history code >5 (regularly participate in exercise at least 3 days per week) was higher in the higher VO2max deciles. In addition, five positive CHD risk factors were inversely related to VO2max, and one negative CHD risk factor was directly related to VO2max. As expected, the higher CRF groups had a more favorable CHD risk factor profile. Also, the mean of VO2max decreased with the greater number of CHD risk factors.Conclusion: This study developed normative values of the VO2max based on measured VO2max. VO2max was significantly correlated to CHD risk factors. / School of Physical Education, Sport, and Exercise Science

The purpose of the study was to gather empirical data on the relationship of stress provoking aspects of the administrative role and the presence of selected risk factors in coronary heart disease.The population of the study consisted of 181 administrative persons working in the areas serviced by the East Central Indiana School Study Council and the Northeast Indiana School Study Council. The testing was done at educational workshops, away from the place of employment. The testing period extended through January, February, and March of 1976.)Four instruments were used in the study. The first, instrument, Biographical Information, was used to gather data about medical conditions for which the respondents were currently receiving treatment. The second instrument, the Stressful Situation Scale, was used to collect data about the number of stressful situations the respondents recently had experienced. The third instrument, the Perceived Occupational Stress Scale, was designed by Dr. Robert L. Kahn and his associates at the University of Michigan. The scale was used with the permission of Dr. Kahn and measured the amount of stress the administrative personnel felt. The fourth instrument, the Behavioral Risk Factor Analysis, was used to obtain data about the daily activities of the respondents that may have caused a predisposition to coronary heart disease.The analysis of variance was utilized to test the first null hypothesis that no statistically significant relationship existed between the number of stressful situations experienced and the presence of selected physiological coronary heart disease risk factors. The chi square statistic attempted to test the second null hypothesis that no statistically significant relationship existed between the number of stressful situations experienced and the presence of selected behavioral risk factors of coronary heart disease. The chi square statistic was not operational due to an insufficient spread in the cells.The following findings and conclusions were based on a review of the literature as presented in the study and the results of the analysis of data:1. The number of stressful situations experienced were statistically significant when compared with pulse rate.2. The number of stressful situations experienced were statistically significant when compared with systolic blood pressure. 3. The number of stressful situations experienced were statistically significant when compared with diastolic blood pressure.4. The number of stressful situations experienced were statistically significant when compared with perceived occupational stress. 5. The assistant superintendent group had the highest mean value for pulse rate.6. The assistant superintendent group had the highest mean value for systolic blood pressure. 7.The assistant superintendent group had the highest mean value for diastolic blood pressure.8.The assistant superintendent group had the highest mean value for perceived occupational stress.9.Principals had the greatest mean number of years in the employment category.10. Assistant superintendents had the fewest mean number of years in the employment category.11. Assistant principals had the lowest mean age of administrative personnel.12. Superintendents had the highest mean age of administrative personnel.13. Hypertension was a significant medical problem for administrative personnel in schools.14.Problems with athletic teams presented a significant problem for school administrators.15. Conflict with subordinates and superordinates presented a major problem for school administrators.16. The Occupational Safety and Health Administration had not presented major problems for school administrators.17. Few administrators in the public schools reported feeling unqualified.18. Few administrators in the public schools reported feeling hesitant or upset about having to make decisions.

There is no abstract available for this dissertation. / Department of Counseling Psychology and Guidance Services

Motivation Cardiovascular disease (CVD) is one of the most important causes of mortality and morbidity in South Africa. The major risk factors are prevalent in both the developed and developing areas of the world, among all social classes, and are of similar public health significance in all countries regardless of their level of development. This indicates that much scope remains for further reducing coronary heart disease (CHD) death rates in developed countries and for preventing the emerging CHD epidemic in poorer nations. This study aims at identifying the beliefs of the South African adult population regarding food and cardiovascular health and to therefore identify target groups for education programs. Objectives To investigate the beliefs of South African adults towards the importance of the link between food and cardiovascular health, especially between the different races, living standards, age and gender groups. Also to determine whether this population looks for the Heart Foundation symbol on food products, as well as where the link between food and heart disease ranks in terms of importance compared to other highly prevalent diseases. Method The design of the study was a randomized cross-sectional study. Trained field workers administrated questionnaires by conducting face-to-face interviews with consumers in the language of their choice. Two thousand South African individuals (1 6 years and older) were randomly selected from metropolitan areas in South Africa. The data was weighted to be representative of the total South African metropolitan consumer population, based on gender, age and race distribution (n=10 695 000). The total population was representative of both genders (5 423 000 men and 5 272 000 women) and major race groups (2 615 000 whites, 6 252 000 blacks, 1 255 000 coloureds and 573 000 Indians), from different age and living standards groups. The market research group, MARKINOR, was contracted to collect the data. Quantitive data was statistically analysed in order to generate the relevant descriptive statistics, cross tabulations and statistical tests. Results The majority of the population found the link between food and cardiovascular risk related health issues to be important, especially the higher LSM groups within the different race groups. The link between food and weight loss was considered the least important compared to other cardiovascular risk factors (cholesterol, blood pressure, diabetes, healthy blood vessels). Only 35% of the study population agreed with the statement that they look for the Heart Foundation symbol, while 46% disagreed with the statement. There was a greater tendency for the higher LSM groups to look for the Heart Foundation symbol than the lower LSM groups. Heart disease was considered just as important and in some cases more important when compared with HIVIAIDS and cancer. Conclusions This study shows that the metropolitan South African adult population is aware of the importance of food on CVD. Nutritional education needs to be aimed at both genders and all ages of the lower socio-economic groups of South Africa. The reasons why such a large percentage of the South African metropolitan adults do not look for the Heart Foundation symbol, or are undecided about it, needs to be investigated and addressed. Prevention programs promoting a healthy lifestyle, which would address the risk factors associated with CVD, should be received with a positive attitude. / Thesis (M.Sc. (Nutrition))--North-West University, Potchefstroom Campus, 2005.

Background: Premenopausal black women have a 2-3 fold greater rate of coronary heart disease (CHD) than premenopausal white women. The purpose of this study was to provide insight into the reasons for this difference. Methods and Results: We compared CHD risk factors in 100 black and 100 white, healthy premenopausal women age 18-45 years and of relatively advantaged socioeconomic status. Black women consumed diets higher in saturated fat and cholesterol (12% of kcal as saturated fat and 360 mg of cholesterol per day) than did white women (10% of kcal and 290 mg/day) (p=0.008). Black women also had a higher body mass index (BMI) (32.0±9.2 vs. 29.0±9.4 kg/m², p=0.021), and higher systolic (124±17 vs. 115±14 mmHg, p<0.0001), and diastolic (79±14 vs. 75±11 mmHg, p=0.048) blood pressures. The mean plasma Lp(a) concentration was higher in the black women (40.2±31.3 mg/dl) than in the white women (19.2±23.7 mg/dl)(p<0.0001). The black women, however, had lower plasma triglyceride levels (0.91±0.46 vs. 1.22±0.60 mmol/L, p<0.0001), and a trend toward higher HDL cholesterol levels (1.37±0.34 vs. 1.29±0.31 mmol/L, p=0.064) than the white women. Plasma total and LDL cholesterol levels were similar. Rates of cigarette smoking and alcohol intake were low and similar between the races. Black women additionally had higher levels of plasma total homocysteine (8.80 vs. 7.81 μmol/L, p=0.013), lower plasma folates (3.52 vs. 5.23 ng/ml, p<0.0001), and higher vitamin B₁₂ levels (522 vs. 417 pg/ml, p<0.0001) than white women. More white women than black women took a multivitamin supplement (42.4% vs. 24.7%, p=0.019). When adjusted for multivitamin use, homocysteine levels did not differ, but plasma folate remained significantly lower in black women. Sixty-eight percent of black women carried the wild-type methylenetetrahydrofolate reductase genotype, 32.0% were heterozygotes, and none were homozygotes. Of the white women, 47.4% were wild-type, 40.3% heterozygotes, and 12.3% homozygotes (p=0.013). Conclusions: Premenopausal black women consumed more saturated fat and cholesterol and had a higher mean body mass index, blood pressure, Lp(a), and plasma total homocysteine levels than white women. These differences in coronary risk factors may explain the higher incidence of CHD in premenopausal black compared to white women. / Graduation date: 1998

Thesis (Ph. D.)--University of Hawaii at Manoa, 1993. / Microfiche. / ix, 211 leaves, bound 29 cm

Addenda and corrigenda are tipped-in & numbered leaves 281-282. / Copies of author's previously published articles are inserted back end paper. / Bibliography: leaves 222-279. / xiv, 282 leaves : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Studies were performed in the Langendorff-perfused isolated rat heart, using a paradigm in which atrial distension was prevented. The release of natriuretic peptides and endothelin-1, along with cardiac function was monitored during periods of transient ischaemia or hypoxia. Additional studies were performed in patients undergoing cardiac catheterization. / Thesis (Ph.D.)--University of Adelaide, Dept. of Medicine, 1999?

Includes a list of thesis related publications, reviews and thesis related abstracts, awards, book chapters and invited presentations (leaves vii-xii). / Includes bibliographical references (leaves 179-234). / xvii, 234 leaves : ill. (some col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / A systematic evaluation of magnetic resonance imaging and its use in the ex vivo and in vivo setting, in the aorta and coronary arteries in rabbit and porcine models, leading to the potential for human coronary atherosclerotic imaging. / Thesis (Ph.D.)--Adelaide University, Dept. of Medicine, 2001

Thesis (Ph. D.)--University of Hong Kong, 2007. / Also available in print.