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  • Title: Effect of conditioning horses every third day at v10 on measures of fitness.
    Author: Lindner A, López RA, Durante E, Hernandez H, Botta V, Sadaba S, Boffi FM.
    Journal: J Anim Physiol Anim Nutr (Berl); 2011 Jun; 95(3):286-93. PubMed ID: 20880285.
    Abstract:
    This study examined the effect of exercising horses five times per fortnight with two bouts of 5 min duration at their v(10) with 2 days between consecutive exercise sessions. Five Anglo-Arabian horses were treadmill-conditioned for 6 weeks. A standardized exercise test (SET) was performed at the beginning of the conditioning period (CP) to determine the blood lactate-running speed (BLRS) and the heart rate-running speed (HRRS) relationship and the SET was repeated every 2 weeks. After each SET, the BLRS relation was used to calculate the horse's speed (v = velocity), which produced a blood lactate concentration (LA) of 10 mmol/l (v(10) ) and 4 mmol/l (v(4) ). From the HRRS was calculated the speed at which the horses had a heart rate of 180 b/min (v(180) ). Each horse was then conditioned for the next 2 weeks five times at its individual v(10) for two 5-min bouts. Exercise speed was individually adapted to the new v(10) every 2 weeks. In addition, horses were submitted to another SET prescription to determine the peak oxygen consumption (VO(2 peak) ) before, after 3 weeks and at the end of CP. The v(4) of horses increased during the CP (p < 0.05). v(180) did not change (p > 0.05). VO(2 peak) increased in the first 3 weeks of CP (p < 0.05) and levelled off afterwards (p > 0.05). The conclusion drawn was that exercising horses five times per fortnight at their v(10) for two 5-min bouts with 2 days between consecutive exercise sessions improved v(4) and VO(2 peak) but not v(180).
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