The frequency of hypertonic responses to the workloads and the dynamics of this frequency when comparing Groups 5 and 7 were the same as when comparing Group 3 with Groups 1 and 2. In Group 8, there was insignificant negative dynamics of double product, HRmax, SBPmax; LPmax  - without dynamics. There was no difference in the dynamics of the indicators between Groups 4 and 8, although the difference in the clinical and functional states between the groups before treatment was statistically significant. The physical training of the patients diagnosed with coronary heart disease involved such types of activity as therapeutic physical practices, running, walking, Nordic walking, swimming, games [3, 5, 8]. These classes were adapted to each patient's capabilities by intensity, which ranged from 60 to 100% of individual maximum capabilities, i.e. the physical training programs for the patients were designed on the same lines as for healthy people.

The analysis of the physical training results showed that the workload intensity of 50-70% of maximum did not have any statistically significant effect in the form of improved hemodynamics, which was associated with insufficient training intensity. The intensity of 80% of maximum led to the contradicting results. Most researchers believe that physical trainings increase power capacity but do not affect the heart’s ability to consume oxygen, measured indirectly by double product [7, 8]. The supporters of the positive effect of high-intensity physical trainings on coronary circulation do not provide any convincing data, since some have conducted few researches only, and others have obtained irregular results when processing the data using the Fisher index. There was no statistically significant dynamics of indicators in Group 4 engaged in controlled walking, however, the individuals with the ST segment depression at the peak of loading were found to have negative dynamics. The physical training results in Group 8 indicated deterioration due to the decrease in double product against the background of previous load power, but there is an opinion that these results can be regarded as economization of cardiac activity being favorable in case of coronary heart disease [5]. The feasibility of combining the low- and high-intensity physical trainings was studied in Groups 3 and 7. This combination, although leading to the increase in double product and LPmax, forms a hypertonic type of response to the workloads, which is an unfavorable marker.

Conclusion. The study found that low-intensity cycle ergometer physical trainings in supine position help increase the coronary blood flow measured by diastolic pressure regardless of the initial functionality in health groups 2 and 5; and it is important that benefits of the training depend on the training cycles rather than schedules – i.e. 2-3 trainings per day may be as efficient as 1 per day with a daily rest break. conditional on the same numbers of training sessions – that means that the low-intensity physical training technique may be effectively applied in sanatoria and hospitals. Progress tests in the groups of patients engaged in the high-intensity physical training showed the highest progress achieved by group 6 with a fair prior functionality. The group was subject to the controlled individualized cycle ergometer trainings in sitting position. with the maximal load growing and diastolic pressure staying the same. Combined low- and high intensity physical trainings may not be recommended though due to the potential hypertonic responses to the workloads.

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Corresponding author: krasavina.t@mail.ru

Abstract

Objective of the study was to rate benefits of different controlled physical trainings on haemocardiodynamics in coronary heart disease diagnosed people. The study found that a low-intensity cycle ergometer physical trainings in supine position helps increase the coronary blood flow measured by distaolic pressure regardless of the initial functionality in health groups 2 and 5; and it is rather important that benefits of the training depend on the training cycles rather than schedules – i.e. 2-3 trainings per day may be as efficient as 1 per day with a daily rest break, conditional on the same numbers of training sessions – that means that the low-intensity physical training technique may be effectively applied in sanatoria and hospitals. Progress tests in the groups of patients engaged in the high-intensity physical training showed the highest progress achieved by group 6 with a fair prior functionality. The group was subject to the controlled individualized cycle ergometer trainings in sitting position, with the maximal load growing and diastolic pressure staying the same. Combined low- and high intensity physical trainings may not be recommended though due to the potential hypertonic responses to the workloads.