The influence of the kettlebell lifting training on the level of endurance development and functional abilities of the cadets' cardiovascular system in the course of study is examined in the article. Cadets of the 1 st-5 th years of study (n=474) who were studying according to the current system of physical training (group А, n=416) and cadets who were attending a kettlebell lifting class (group B, n=58) took part in the research. The study of the level of endurance development was conducted during the following tests: 3 km race, 5 km accelerated march, and the obstacle course (400 m). The cardiovascular system functioning was examined concerning these indicators: heart rate, arterial blood pressure, Robinson's index, and heart rate recovery from a standard load. The improved indicators of the endurance and cardiovascular system of group B cadets have been reliably determined (р<0.05-0.001) which proves the efficiency of the kettlebell lifting training concerning the future officers' formation of physical readiness for professional activity.