In 1898, three articles on physical activity appeared in the first volume of the American Journal of Physiology. Other articles and reviews subsequently appeared in prestigious journals. The German applied physiology publication, Internationale Zeitschrift fur Physiologie einschliesslich Arbeitphysiologie (1929–1940; now known as the European Journal of Applied Physiology and Occupational Physiology), became a significant journal in the field of research.