Health-improving running loads are an effective means of improving the functions of the cardiovascular system. The study of the adaptive reactions of the cardiovascular system in women of different somatotypes under the influence of health- improving running classes allows to reveal the dynamics of the main indicators that determine the physical health of a person and to establish their somatotypological features. 80 women in the the first period of mature age (25-35 years old), who had not played sports before, took part in the study. Training sessions according to the health-improving running program were held 3 times a week. The basis of the program was running loads in the aerobic mode of energy supply, which were performed in a uniform continuous method. Dosing of running loads was carried out according to energy consumption. Heart rate was measured in a state of relative muscle rest. Blood pressure after dosed loads of different power was measured during the PWC170 test. In women aged 25-35, exercise to the health-improving running program caused a 2.2% decrease in heart rate at rest and a 2.1% decrease in systolic blood pressure after a dosed cycle ergometric exercise with a power of 1 W·kg. Among women of different somatotypes, a probable decrease in heart rate was found in representatives of the endomorphic somatotype. It has been established that health-improving running classes causes positive changes in the function of the cardiovascular system in women aged 25-35. Women of different somatotypes have different adaptive reactions of the cardiovascular system to health-improving running classes. Statistically confirmed changes were found only in representatives of the endomorphic somatotype.

The article presents a program of training sessions for health running, where the dosage of running loads is based on energy consumption, and describes its impact on the indicators of functional preparedness of women 25-35 years. This technique is based on the dependence of energy expenditure on heart rate. The study involved 80 women of the first period of adulthood who had no experience in sports. The subjects performed running loads in the aerobic mode of energy supply at a heart rate in the range of 140-150 beats per minute. The duration of the running was individual, which provided energy expenditure within the optimal range. In order to harmoniously develop all the energy supply systems of muscular activity, every second and third of the week classes included intense running for short distances in anaerobic power energy supply. The impact of classes on the health-improving running program on the functional preparedness of women aged 25-35 years was manifested by an increase in absolute and relative indicators of aerobic productivity of the body (Vo2 max and TAM). In addition, an increase in the relative indicators of power and capacity of anaerobic lactate productivity of the body (VANT 30 and MQMK). Indicators of anaerobic alactate productivity of the body (VAnT 10abs. and VAnT 10rel.) did not undergo statistically significant changes. Health-improving running classes caused adaptive reactions of the cardiovascular system, which was manifested by a probable decrease in heart rate in a state of relative muscle rest and blood pressure on dosed exercise. Health-improving running classes are an effective way to improve indicators of aerobic productivity of the body in women 25-35 years. The growth of aerobic productivity was facilitated by running loads in the aerobic mode of energy supply, the dosing of which was carried out according to energy consumption. Interval runs of submaximal intensity and serial accelerations contributed to the growth of anaerobic productivity. Such classes cause positive adaptive reactions of the cardiovascular system.