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New electrocardiographic score to racehorses predicts better cardiovascular physical fitness

Grant number: 13/15320-0
Support Opportunities:Regular Research Grants
Duration: February 01, 2014 - January 31, 2017
Field of knowledge:Health Sciences - Medicine - Medical Clinics
Principal Investigator:Carlos Alberto Pastore
Grantee:Carlos Alberto Pastore
Host Institution: Instituto do Coração Professor Euryclides de Jesus Zerbini (INCOR). Hospital das Clínicas da Faculdade de Medicina da USP (HCFMUSP). Secretaria da Saúde (São Paulo - Estado). São Paulo , SP, Brazil
Associated researchers: Cássia Fré da Costa ; Nelson Samesima


The heart score (HS), responsible for up to 25% of physical fitness, is the mean duration of QRS complex in electrocardiographic leads I, II and III. In equine medicine HS proved its determinance in identifying high performance Thoroughbred horses with superior physical fitness (such as cardiovascular capacity), and to prevent cardiovascular unconditioned horses from suffering fatal accidents (e.g.,sudden cardiac death). The aim is to identify, through electrocardiographic patterns of young Thoroughbred horses, a new heart score which can evaluate physical fitness. Since the methods to obtain the existing HS showed low sensitivity, a new heart score is needed to better predict performance. Since we are dealing with a premature breed (training starts at 2 years old), the Thoroughbred is the perfect model to study the cardiac adaptations to exercise-induced physiological hypertrophy. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DA COSTA, CASSIA FRE; SAMESIMA, NELSON; PASTORE, CARLOS ALBERTO. Cardiac Mean Electrical Axis in Thoroughbreds-Standardization by the Dubois Lead Positioning System. PLoS One, v. 12, n. 1, . (13/15320-0)

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