Physiological basis of differences in the body tolerance to submaximal physical load to capacity in healthy young individuals

Abstract

A complex approach to studying the physiological basis of the individual and typological features of functional states and tolerance of physical load in healthy young individuals using superslow physiological processes (SSPP) was elaborated. Statistically significant differences were found in the values of central hemodynamics, physicochemical homeostasis, the level of oxygen consumption by the tissues and general nonspecific adaptation reactions of the body. These reactions correlated with differences in the integral values of the wakefulness level, as judged by the SSPP data, in healthy individuals tolerant of physical fatigue and quickly fatigued individuals at rest and after a two-step individually submaximal physical stress to capacity. The possibilities of the use of this approach to substantiate the physiological significance of SSPP in the differential diagnosis of the optimal level of wakefulness, the state of physical tension, the state of fatigue, and asthenic states of a different degree of severity in healthy individuals with regulatory and homeostatic control inherent in these states were revealed.