Exercise training-induced hypervolemia in the horse.

摘要: The purpose of this study was to determine if a chronic hypervolemia would accompany endurance exercise training in the horse. Six mature previously inactive horses were utilized for study. During 5-wk experiment, five trained 14 d on treadmill ergometer at constant speed 5.6 km X hr-1 and grade 12.5% graduated lengths time. One horse by lunging trotting pace round pen. Following training, plasma volume increased 4.7 1 (29.1%, P less than 0.05). Although rate daily water intake did not change during period, 24-h urine output decreased an average 3.5 d-1 (-24.5%, Resting glomerular filtration sodium clearance altered training. However, urea, potassium, osmotic (P 0.05) while free aldosterone arginine vasopressin concentrations Plasma potassium concentration significantly following 2 wk These data appear suggest that renal control mechanisms affecting reabsorption via re-absorption urea osmotically active substances other provide primary route training-induced seen horses.