State of body functions of submarines of the Socialist Republic of Vietnam before a short sea trip

Based on the state of the functions of the central nervous system, circulatory system, and respiratory system, the psychophysiological status and reserve capabilities of the body of submariners of the Socialist Republic of Vietnam are assessed before a short sea trip. The study was conducted in 2023 as part of the research work “Ecolan M-2.2” that was participated by 117 submariners in the inter-trip period and 45 submariners 1–3 days before sea trip on the territory of the Socialist Republic of Vietnam. The state of the functions of the central nervous system, circulatory system, and respiratory system, reserve capabilities, and psychophysiological status of the body were examined. The daily and weekly routines of submariners during permanent deployment were analyzed. Submariners of the Socialist Republic of Vietnam in the inter-cruise period and before a short sea trip have a predominantly good state of body functioning in the examination of various systems and sufficient reserve capabilities. Despite the normal functional state of the examined submariners, 13 tended to have deteriorated body function and 5 had a borderline functional status. The small number of submariners with a borderline functional status may lead to erroneous activities during sea trips and cause emergencies. This, in turn, is fraught with disruption of the combat mission and even death. The results indicate the need to develop medical and physiological measures in the Navy of the Socialist Republic of Vietnam to maintain and restore the functional status of submariners during various periods of combat training activities. In the future, for a more qualitative development of medical and physiological measures, the medical support received by submariners of the Navy of the Socialist Republic of Vietnam, morbidity, and results of dispensary follow-up must be evaluated.