Arterial Pressure Changes at Sailor Staffs During Prolonged Sea Voyage

Goal. To reveal the peculiarities of central hemodynamics of cadets of a marine university in the conditions of a five-month sailing.Materials and methods. A survey of 70 cadets on board of a sailing training vessel was carried out in the dynamics of a five-month voyage (165 days). Hemodynamic indicators were monitored before entry on duty. For the statistical processing of the results, the SPSS software, v 17.0 (IBM) was used.Results and its discussion. The first two months are characterized by stable indicators of myocardial contractile function, which begins to change from the third month. In the third month, signs of mobilization of the circulatory function appear, which is expressed in an increase in blood pressure (p<0.05) and blood pressure (p<0,05) (by 6.6% and 14%, respectively).The fourth and fifth months are characterized by a further activation of the compensatory-adaptive mechanisms of hemodynamics: an increase in blood pressure (p<0,05), blood pressure (p<0,001), as well as MVC (p<0,05) due to an increase in heart rate (p<0,001), which indirectly indicates a decrease in efficiency in the work of the cardiovascular system.

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Characteristics of Indicators of Central Hemodynamics of Cadets of Marine University in the Period of Long Swimming

Gudkov

Shcherbina

Popova

et al. 2021

Morsk. med.

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Features of functional reserves of the cardiovascular system in cadets of the maritime university in conditions of long-term navigation

et al. 2021

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Aim: to reveal the features of cardiovascular system functional reserves in naval cadets under the conditions of a long voyage.Materials and methods. 70 cadets undergoing training and sailing practice for 165 days on Sedov training and sailing ship were studied. Cardiovascular system reserves were determined once a month indices before taking over the watch. The results were elaborated using the SPSS program, v 17.0 (IBM).Results and their discussion. On the first, second, and third months of the voyage, the naval cadets retained the functional reserves of the cardiovascular system, which is indicated by the typical normotonic reaction in its activity in response to physical activity.On the fourth and fifth, the cadets showed signs of a decrease in the reserves of the cardiovascular system, which is manifested by a slower recovery after standard physical activity, a decrease in the inotropic reserve index and an increase in the chronotropic reserve index.

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Arterial Pressure Changes at Sailor Staffs During Prolonged Sea Voyage

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Characteristics of Indicators of Central Hemodynamics of Cadets of Marine University in the Period of Long Swimming

Characteristics of Indicators of Central Hemodynamics of Cadets of Marine University in the Period of Long Swimming

Features of functional reserves of the cardiovascular system in cadets of the maritime university in conditions of long-term navigation

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