DYNAMICS OF MORPHOLOGICAL INDICATORS OF LONG-DISTANCE RUNNERS’ PHYSICAL DEVELOPMENT

Abstract

This article analyzes the dynamics of morphological indicators observed in the process of physical development of long-distance runners. During the research, such parameters as body height, body mass, body mass index, chest circumference, percentage of muscle mass, as well as certain morphological changes related to the cardiovascular system were examined. It was found that regular long-distance running leads to a moderate decrease in body weight, adaptation of muscle fibers to endurance, an expansion of respiratory system capacity, and an increase in the functional volume of the heart. Moreover, it is noted that morphological indicators are directly related to age, gender characteristics, and training loads. The research results have important scientific and practical significance for improving training programs, monitoring athletes’ health, and achieving maximum performance in long-distance running.