The role of fitness in preventing coronary heart disease is explored. Research on high-density lipoprotein, which has been found to be one of the most critical determinants of risk, is reviewed. The relationship between fitness, high-density lipoprotein, and coronary heart disease is assessed, and clinical implications are spelled out. (MT)

Evidence and research indicate that the majority of cases of coronary artery disease represent familial disorders which are best explained by a polygenic hereditary predisposition interacting with emotional triggers such as diet and stress. Early identification is judged necessary. (Authors/JA)

This article considers the role of sex hormones, particularly estrogens, in the incidence of ischemic heart disease. (JA)

A review of research regarding mitral valve prolapse in young children indicates that up to five percent of this population have the condition, with the majority being asymptomatic and requiring reassurance that the condition usually remains mild. Beta-blocking drugs are prescribed for patients with disabling chest pain, dizziness, palpitation, or…

An exploration of the current thinking about levels of fitness necessary to meet health fitness standards, with particular focus on aerobic capacity, discusses major health problems, the prevalence of heart disease, how health standards are set, and how health habits change as people age. (CB)

The effects of stretching techniques on arterial blood pressure (ABP) were studied in three groups of 20 men each. Each group performed one of three proprioceptive neuromuscular facilitation (PNF) techniques. Results are presented. The study indicates that the benefits of stretching may outweigh the risk of elevated ABP. (JL)

The author describes a state-of-the-art cardiac rehabilitation program consisting of training and supervision in exercise, nutrition, and stress management. Inpatient, postdischarge, and late postdischarge regimens are presented. (MT)

Tracked levels of risk indicators over 4-year period in 356 high school students, assessing health status and behavior. Subjects were identified as potentially at risk if scores equaled or exceeded seventy-fifth percentile for age, sex, and race. Results indicated that 54 percent of at-risk group had negative health behaviors, some of which…

Regular exercise training results in a variety of cardiovascular adaptations including increases in left ventricular chamber size and wall thickness, and in resting vagal tone. Research has demonstrated that the changes are physiologic and are associated with preserved or enhanced cardiovascular function. (Author/JD)

The Cardiovascular Fitness and Rehabilitation Program of Sinai Hospital of Detroit implemented an exercise compliance data documentation system in 1984 which is used in its outpatient gymnasium cardiac fitness and rehabilitation program. This documentation system is described. (MT)

Most weight loss among wrestlers is accomplished by a combination of fasting, induced sweating, and reduced fluid intake resulting in dehydration in the final days prior to competition. The effects of acute thermal dehydration on cardiovascular dynamics are related to a reduction in plasma volume. (JN)