期刊名称：Facta Universitatis : Series Physical Education and Sport
印刷版ISSN：1451-740X
出版年度：2011
卷号：9
期号：01
出版社：University of Niš
摘要：Flack test belongs to group of EKG stress tests. It is used to estimate functional adaptation of cardiovascular system to intensive stress by concomitant exposure to overpressure in the lungs (40mmHG) and apnea over 1 min. 627 male subjects have been tasted, at the age between 18 and 22 years. EKG was registered continuously at rest before exposure, during overpressure and apnea, and after test during recovery. Flack test is presented in a sitting position and it consists of three phases: (1) the phase at rest, (2) the phase of inspiratory apnea with overpressure in lung of 40 mmHg and (3) the phase of healing. Equipment needed for the test is: EKG apparatus, U tube partitioned in millimeters Hg till "O" sign and with rubber hose with mouthpiece at the end, rubber nose clamp and the test watch. There were 46,5% registrated changes of EKG (3.4% at rest phase, 42.4% in an apnea phase and 11% in a 3rd phase). The changes of P wave are recorded in 26.2%, QRS complex at 15.2%, ST segment at 3.8% and T wave in 7%. R/T phenomenon is registrated in 0.8% and assistolia in 0.33%. The value of Flack's test is in detection of hidden physiologic or pathologic abnormalities in young and healthy persons who intend to practice diving professionaly or sportly.
