Dynamics of Indicators of Physical Performance and Aerobic Performance of Middle-Distance Runners at the Training Stage
The purpose of the study is to analyze the indicators of physical performance and aerobic performance of middle-distance runners of various qualifications at the training stage. The research objectives are to determine the indicators of physical performance of middle-distance runners of various qualifications; to determine the parameters of aerobic performance of middle-distance runners of various qualifications. The hypothesis of the study is the assumption that regular monitoring of physical performance and aerobic performance of qualified middle-distance runners in different periods of the annual training cycle will improve the effectiveness of the management of the training process of athletes in cross-country athletics. The research methods are analysis of scientific and methodological literature, bicycle ergometry, and methods of mathematical statistics. The results are as follows: it was determined that at the end of the third stage, the absolute PWC170 index increased by 6.06 % (p  0.05) for the second category, respectively.