title: [Reactions of the cardio-respiratory system of cosmonauts to dosed physical loads following 30- and 63-day flights in orbital station "Salyut-4"].
abstract: Cardiorespiratory responses of Salyut-4 crewmembers to exercises of 600 kgm/min performed for 7 min on a bicycle ergometer in the supine position were studied. It was found that the 30- and 63-day flights induced a certain decrease in the body response which included a less economic functioning of the cardiorespiratory system during exercise. The degree of postflight changes of the 30- and 63-day crewmembers was similar. At the same time the cardiorespiratory system of the 63-day crewmembers returned to the preflight level more rapidly than that of the 30-day cosmonauts.
mesh_terms: D001794:Blood Pressure; D002302:Cardiac Output; D002320:Cardiovascular Physiological Phenomena; D004562:Electrocardiography; D005080:Exercise Test; D006339:Heart Rate; D006801:Humans; D008297:Male; D010101:Oxygen Consumption; D013026:Space Flight; D013997:Time Factors
vernacular_title: Reaktsii kardio-respiratornoĭ sistemy na dozirovannuiu fizicheskuiu nagruzku u kosmonavtov posle 30- i 63-sutochnykh poletov na orbital'boĭ stantsii "Saliut-4"