title: [Training-induced changes of reference vectors in the QRS complex of the EKG of young trotting horses].
abstract: After the onset of training ("breaking") in young standardbred horses within continuing investigations changes of vectors in the QRS-complex were considered. These changes accomplished in two stages. Mainly within the first three months of training the vector R (VR) in limb leads changed to the left and to caudal and dorsal. In a second interval between five and seven months after breaking the vector S (VS) changed to cranial. As main cause the different character of training in both phases is discussed. Additional indicators of age- or development-related causes were not found.
authors: Allgemeine Chirurgie und Radiologie, Freien Universität Berlin.
authors: H
authors: H
authors: Grauerholz
authors: G
authors: G
authors: Jaeschke
mesh_terms: D000367:Age Factors; D000818:Animals; D004562:Electrocardiography / Q000662:veterinary*; D005260:Female; D006321:Heart / Q000502:physiology*; D006736:Horses / Q000502:physiology*; D008297:Male; D010805:Physical Conditioning, Animal
vernacular_title: Trainingsinduzierte Anderungen von Bezugsvektoren im QRS-Komplex des EKG junger Trabrennpferde.