The relationship between body composition, training and race performance in a group of Thoroughbred flat racehorses.

摘要: SummaryReasons for performing study Few noninvasive measures associated with performance assessment are available racehorse trainers. Evaluation of body composition superior human sprinters has revealed a lower fat mass (FM), percentage (%) and greater fat-free (FFM), but to date there have been few studies evaluating this in racehorses. Objectives To determine the effects age, gender training on relationship between composition, physiological measurements Thoroughbred racehorses. Methods At 2, 5 8 months training, rump thickness (RFT) was ultrasonographically measured 1-, 2- 3-year-old Thoroughbreds (n = 148), FM, % FFM calculated. Speed, heart rate, plasma lactate serum creatine kinase concentrations were recorded during each fast work session. Training duration (number days) intensity sessions) collated period. Retrospective racing used categorise horses as elite or nonelite. Results FFM males (P 0.006) at all stages. There no interactions duration, intensity, age (P>0.05); linear. had negative effect RFT 0.0002), FM (P<0.0001) positive 0.01). 0.009), (P<0.0001), (P<0.0001). vs. nonelite stages 0.003), 0.05) females 0.04) 0.002) 3-year-olds 0.02). Conclusions While affect is performance. Potential relevance Body may assist fitness evaluation.