Cardiovascular Adaptations to Prolonged Physical Effort
- 1 June 1954
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Circulation
- Vol. 9 (6), 835-846
- https://doi.org/10.1161/01.cir.9.6.835
Abstract
Studies of the cardiovascular system were made among 26-mile marathon runners after at least five years of physical training. Studies made with the subjects at rest showed an electrocardiogram characterized by a vertical or semivertical electrocardiographic position of the heart in the chest, bradycardia, high voltage of the QRS complexes and high T and U waves. T waves which were low with respect to the height of the R waves were not encountered. Etiologically the heart was enlarged. Immediately after running 26 miles the transverse diameter of the heart was decreased considerably.This publication has 10 references indexed in Scilit:
- The normal unipolar precordial and limb lead electrocardiogramAmerican Heart Journal, 1949
- The duration of the electrical systole (Q-T) in acute rheumatic carditis in childrenAmerican Heart Journal, 1947
- Investigations on the Bloodcirculations of Gunder Hägg and Arne AnderssonCardiology, 1945
- The precordial electrocardiogramAmerican Heart Journal, 1944
- THE PHLEBOMANOMETER: A NEW APPARATUS FOR DIRECT MEASUREMENT OF VANOUS PRESSURE IN LARGE AND SMALL VEINSJournal of the American Medical Association, 1943
- ELECTROCARDIOGRAPHIC CHANGES WITH EXERCISEArchives of Internal Medicine, 1943
- Evaluation of heart size measurementsAmerican Heart Journal, 1942
- THE EFFECT OF STANDARDIZED EXERCISE ON THE FOUR-LEAD ELECTROCARDIOGRAM.The American Journal of the Medical Sciences, 1935
- ESTIMATION OF TRANSVERSE CARDIAC DIAMETER IN MANArchives of Internal Medicine, 1926
- PHYSIOLOGICAL AND PATHOLOGICAL EFFECTS OF SEVERE EXERTION (THE MARATHON RACE) ON THE CIRCULATORY AND RENAL SYSTEMSArchives of Internal Medicine, 1910