Comparison of Various Factor Analyses of Cardiovascular-Respiratory Test Variables |
| |
| Authors: | Thomas K Cureton |
| |
| Institution: | University of Illinois , Urbane , Illinois , USA |
| |
| Abstract: | Abstract Various factor analyses completed in the area of cardiovascular-respiratory tests between 1936 and 1962 were studied and the factors grouped into clusters of resting state, change of postural position from quiet sitting to lying or standing, moderate circulatory performing capacity, maximal performing capacity, recuperative ability after exercise, and respiratory capacity and reserve. The cardiovascular-respiratory tests were grouped according to three different types and periods of factor analyses. The factors from various studies are affected by the type of subjects, the body positions, and the relative state of fitness, and they can usually be subdivided. The various tests in the quiet state indicate relative sympathetic or parasympathetic dominance, blood flow, cardiac output, and metabolism. The electrocardiographic and ballistocardiographic observations have been included only in the last factor analyses. Moderate circulatory performing capacity tests indicate that there is relative economy to the work in terms of lower relative pulse rates, lower blood pressure during work, and lower relative oxygen intake for the relatively fitter men. The respiratory volumes have appeared as relatively independent from factor analyses of some authors. |
| |
| Keywords: | |
|
|
