[Age-specific dynamics of mental working capacity in different regimens of locomotor activity].

The present study included a total of 392 practically healthy men aged between 40 and 79 years differing in the character of routine locomotor activity and the training status (from masters of sport of international grade to the subjects who had never been engaged in sporting activities). They were divided into 4 groups each comprised of subjects ranged by age with a ten-year interval. Their mental working capacity was estimated from the results of the correction test. The study demonstrated that the subjects characterized by a high level of day-to-day locomotor activity have higher indices of attention intensity and information processing speed compared with the age-matched ones leading a relatively sedentary lifestyle. Moreover, they have better chances to retain the mental working capacity up to the age of 70 years.

[Analysis of hemodynamics in late ontogenesis in subjects with different regimes of motor activity].

Th present study was designed to examine 409 practically healthy men at the age of 50 to 79 years differing in terms of daily locomotor activities. They were divided into 4 groups each comprising subjects whose age differed within 10 years. Group 1 included former high-class athletes continuing physical exercises. Group 2 consisted of former high-class athletes practicing sedentary lifestyle. Group 3 contained subjects regularly doing health-improving physical exercises and group 4 those who had never been engaged in sports activities. The main parameters measured in all the subjects included the heart rate, arterial pressure, stroke volume, pulse pressure, minute blood volume, cardiac index, total peripheral vascular resistance, and mean dynamic arterial pressure. It was shown that both the routine regime of motor activity and its history in the preceding period have significant influence on hemodynamic characteristics in late ontogenesis. The high level of routine motor activity in the former high-class athletes enabled them to maintain for a long time good functional state of the cadiovascular system compared with the former athletes practicing sedentary lifestyle and the subjects who had never been engaged in sports activities. The former athletes practicing sedentary lifestyle developed the hypokinetic type of hemodynamics by the age of 60-69 years.

[Age-related dynamics of the maximum oxygen consumption associated with different regimens of locomotor activity].

This study included a total of 234 practically healthy men at the age from 40 to 69 years differing in the regimen of daily locomotor activity. They were divided into 4 groups, each comprised of subjects ranged by age with a ten-year interval. Group 1 included former high-level athletes continuing active physical training, group 2 was comprised of former high-level athletes living a sedentary life style, group 3 consisted of subjects regularly engaged in health-giving physical exercises, and group 4 included subjects who were never engaged in physical exercises. The energy consumption by the members of all four groups was estimated when they were undergoing a stepwise increasing workload on the veloergometer measured with the help of a computerized diagnostic system. The results of the study indicate that the high oxygen consumption at a limiting load in the former high-level athletes is associated with the significant economization of basal metabolism and the reduction of oxygen consumption at rest. This mechanism accounts for the possibility to retain adequate physical activity of the organism up to the age of 70 years.

[The effect of different regimes of motor activity on age-specific dynamics of the main functional systems of the organism].

The present study included 229 healthy men having different habitual patterns of daily locomotor activity. They were allocated to 4 groups encompassing subjects of different age. Group 1 consisted of medium-level athletes and subjects regularly engaged in physical exercises, group 2 included former high-level athletes continuing active physical training, group 3 was comprised of former high-level athletes living a sedentary life style, and group 4 included subjects who were never engaged in physical exercises. All the participants of the study were examined using an AMSAT-COVERT automated diagnostic system designed for rapid topical evaluation of the human functional state. The results of the study indicate that the regime of daily locomotor activity and previous experience with physical training have marked effect on the age-specific dynamics of the main functional systems of the organism. Continuation of physical activity in former athletes permits them to preserve a higher functional status of the main functional systems of the organism compared with former high-level athletes living a sedentary life style and subject who were never engaged in physical exercises.