Abstract
The physical work capacity of young men (17–21 years old) was estimated during this broad-based study. The subjects were divided into two groups depending on the level of their motor activity: those who were in general sport fitness programs (166 subjects) and those who had achieved high recognition in sports (149 subjects). Two stages in the development of physical work capacity in young men were detected. The first stage covered the 17- to 18-year-old men and was characterized by a significant increase in physical development and aerobic capacity, the improved hemodynamic responses to physical exercise, and a high tension in the cardiac regulatory mechanisms. The second stage (18–21 years) was a period of relative stabilization of physical development and body functions, during which the organism came to a new functional level typical of adulthood. A comparative analysis of the physical work capacity in subjects with different levels of motor activity showed that the indices of physical development, physical fitness, and aerobic capacity in 17-year-old athletes exceeded the same indices in the untrained age-matched group. Physical work capacity was significantly higher in athletes than in the untrained subjects during the whole juvenile period. In athletes the age-related physical fitness and aerobic capacity increased to a greater extent but physical development increased to a lesser extent than the same in the untrained subjects.
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Levushkin, S.P. A Broad-Based Estimation of the Physical Work Capacity of Young Men. Human Physiology 27, 568–575 (2001). https://doi.org/10.1023/A:1011960327142
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DOI: https://doi.org/10.1023/A:1011960327142