Age Dynamic of Morphofunctional Parameters in Northern Men

The purpose of this study is to determine the age peculiarities of some indicators of physiologic status in Northern men at the present time. Male persons aged 20 to 69 years, permanent residents of the North (63.6 °N), were examined. Morpho-functional indices, physiometric indices, psychophysiologic indices, physiologic indices, physical health indices were determined in them by generally accepted methods. Different age groups were compared by decades and correlation analysis was performed according to Pearson (parametric method). In the first period of adulthood (20-39 years old) most of the indicators reach optimal values. In the second period of adulthood (40-59 years), many functions deteriorate, and the mean dynamic blood pressure increases more markedly. In old age (60 years and older) in Northern men there is an accelerated involution of a number of physiological functions (strength indicators, static balancing, hypoxemia tolerance, psychomotor capabilities, hemodynamic indicators and integral indicators of performance and health). The peculiarities of age dynamics of physiological status of the northerners have been established, consisting in increased arterial pressure, decreased strength indices and psychomotor activity indices and in more pronounced age-related changes in these functions, as well as in vital capacity of lungs and muscular efficiency in adults and the elderly. The correlation of many of the studied indicators with age has been established. The overwhelming majority of indicators reflects its rather high and statistically significant dependence on age. The direction of correlations naturally reflects the fading of functions with age in the periods of maturity and old age. Only body weight, body mass index, static endurance, heart rate and autonomic Kerdo index are practically not correlated with age.