[Circulatory and respiratory parameters in children at cardiovascular risk].
Physical performance, pulse rate, blood pressure and respiratory functions (vital capacity, forced expiratory volume and maximal voluntary ventilation) in rest and during physical loading were studied in children of parents having had myocardial infarction under the age of 45. Children with normal and increased skinfold width, and with low resp. normal HDL-cholesterol levels were selected. The most unfavourable respiratory, circulatory and performance results were obtained in obese children with low HDL-cholesterol; significant differences were found in resting heart rate and maximal voluntary ventilation (MVV). In the author's mind, the primary factor is high body fat content resulting in poor physical activity and unfavourable HDL-cholesterol levels. All this forecasts a bad prognosis for adulthood in respect of cardiovascular disease.