title: Effects of training on phagocytic and oxidative metabolism of peripheral neutrophils in horses exercised in the aerobic-anaerobic transition area.
abstract: Using simple techniques, the neutrophil function, in its phagocytosis and oxidative metabolism stages, was evaluated in horses. This was done before and after moderate exercise at the aerobic-anaerobic threshold (standardized heart rate 150 beats/min and lactate level of 3.07 +/- 0.21 mmol/L). The objective was to determine whether regular training and moderate exercise improved the neutrophil function. A group of 19 horses was used; 11 of these were untrained and the remainder trained for national jumping events. The exercise test consisted of a 5 min trot followed by a 3 min gallop on a long lunge. Blood samples were taken for analysis before, immediately after and 15 min after exercise. The results showed that (a) there is a difference in the internalization of particles (PI, PP and PE) by neutrophils from trained and untrained horses at a single time point during active recovery, and PP is higher in trained horses immediately after exercise; and (b) oxidative metabolism is significantly lower in untrained animals before and 1 min after exercise. The moderate exercise at the aerobic-anaerobic threshold did not have any influence on the peripheral blood neutrophil function of the phagocytosis and oxidative metabolism of particles.
authors.affiliation: Department of Cell Biology, Physiology and Immunology (Physiology) University of Cordóba, edif: C-1, Campus Universitario de Rabanales, 14071-Cordóba, Spain. am1esdub@uco.es
authors.forename: B M
authors.initials: BM
authors.lastname: Escribano
authors.forename: F M
authors.initials: FM
authors.lastname: Castejón
authors.forename: R
authors.initials: R
authors.lastname: Vivo
authors.forename: R
authors.initials: R
authors.lastname: Santisteban
authors.forename: E I
authors.initials: EI
authors.lastname: Agüera
authors.forename: M D
authors.initials: MD
authors.lastname: Rubio
mesh_terms: D015308:Anaerobic Threshold / Q000502:physiology*; D000818:Animals; D006736:Horses / Q000097:blood / Q000502:physiology*; D008297:Male; D009504:Neutrophils / Q000502:physiology*; D010101:Oxygen Consumption / Q000502:physiology*; D010587:Phagocytosis / Q000502:physiology*; D010805:Physical Conditioning, Animal / Q000502:physiology*
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