Analysis of creatine kinase, glucose and lactate in Mangalarga Marching horses before and after exercise

Abstract

Abstract. With the increased use of horses in sports of various modalities, sports medicine has been increasingly studied so as to have a better understanding of what happens to these animals during the proposed activity. Fitness and training are essential for proper performance and performance in equestrian events, being an important role in the routine of these animals. The aim of the present study was to evaluate changes in serum biochemistry (creatine kinase, glucose and lactate) in seven Mangalarga Marchador (MM) horses submitted to gait training. Three collections were performed within 60 days, divided into D0, D30 and D60 with the animals at rest and after exercise. The results were: regarding pre-training, mean CK values were obtained in 152.2 ± 50.9 IU/L, 277.2 ± 194.4 IU/L and 301.9 ± 125, glucose in 92. 3 ± 11.4 mg/dL, 97.0 ± 10.3 mg/dL and 87.6 ± 10.3 mg/dL, and lactate at 2.4 ± 0.5 mmol/L, 2.0 ± 0.4 mmol/L and 2.2 ± 0.6 mmol/L, respectively at D0, D30 and D60. Post-training mean CK values were 187.9 ± 25.5 IU/L, 358.6 ± 244.1 IU/L and 307.6 ± 116 IU/L, glucose 97.3 ± 11, 4 mg/dL, 119 ± 16.8 mg/dL and 108.6 ± 28 mg/dL and lactate at 3.3 ± 0.9 mmol/L, 3.6 ± 1.2 mmol/L and 4 ± 1 mmol/L at D0, D30 and D60 respectively. No significant increase in CK was observed under the type of exercise imposed, increasing the powders by 14.4% in the average of all collections. Of the lactated results, we had a significant increase in the pre-training average compared to the post in 39.4%. Already glucose was not significant having increased after 14.8% in the average days of the present study. We can observe that the change in glycemia was relatively different from lactate levels demonstrating the use of the aerobic route.