Адаптационное состояние курсантов 2 курса судоводительского факультета до и после рейса

The article deals with dynamics of Health Level (HL) in cadet navigators of Maritime State University at the age of 18-19 before and after a four-month voyage aboard training tall ship “Nadezhda”. Health Level was evaluated and scored in accordance with “Anti-stress” program on the basis of leukogram. The cadets with HL I had excellent and good condition (1680 – 4960 points); the cadets with HL II had satisfactory condition (920 – 1400 points); cadets with HL III had mild or moderate health impairments (360 – 840 points); and the cadets with HL IV had poor condition (up to 280 points). Their hormonal status (levels of cortisol, testosterone, STH, TSH, thyroxine and triiodothyronine) was identified. The obtained results showed high intensity of adaptation processes in most cadets during sea voyage: while HL III group was the largest both before and after the voyage, the number of persons with HL I after the voyage decreased twofold. In 41.04% of cadets the deterioration of HL was accompanied by a twofold increase in cortisol and STH levels, a twofold decrease in TSH level, a mild decrease in testosterone and triiodothyronine levels and a mild growth in thyroxine level. Improvement of HL was observed in 16 cadets (11.9%) for whom the conditions of sea voyage proved to be appropriate to their capabilities and promoted their rapid adaptation to new conditions. 45.5% of cadets retained their HL and stable hormonal status after the voyage.