7-8세의 남녀 어린이의 Cardiorespiratory 운동부하능력 = Cardiorespiratory performance of 7 and 8-years-old girls and boys

다국어 초록 (Multilingual Abstract)

It was the aim the study described to determine the maximum corporal and cardiorespiratory tolerance of 7-years-old girls and boys and its development during one year of physical education at school. The first investigation included 12 boys and 5 girls, the second investigation 18 boys and 9 girls. Before, during and after an exhaustive tolerance test(sitting position) on the basis of bodyweight using the bicycle ergometer the following parameters of cardiorespiratory performance were monitored in addition to parameters of corporal(total work load, PWC170) and cardiovascular function(heart rate, Riva-Rocci): minute volume, respiratory rate, respiratory volume, O₂-absorption, O₂-absorption/㎏, O₂-pulse, respiratory equivalent, respiratory quotient. During one year the relative oxygen uptake of the boys increased from 37.4 to 45.6 ㎖/㎏.min; this difference was statistically significant. In the girls, no corresponding increase was observed and their relative oxygen absorption remained practically unchanged, showing only a minor elevation from 35.1 to 35.7 ㎖/㎏.min. Differences associated with the age and sex of the test persons are described and discussed for all the biological performance parameters investigated. As a general rule it can be stated that 8-year-old girls show a corporal and cardiorespiratory performance comparable to that of 7-year-old boys, moreover, tend to score lower in the cardiovascular examinations.