the canine athlete - Differences between human and canine athletes
We cannot extrapolate the results from human athletes to our canines
as the efficiency of the use of nutrients is different in each species.
✔During exercise, the obtention of energy to maintain activity is done using body fat.
✔In these dogs, an increase in the lipoprotein-lipase of the muscle tissue and an increase of triglycerides in plasma have been observed. This makes us think, and it has thus been demonstrated,
that in the resistance training tests, the free fatty acids (FFA) from the food rations are the primary source
of energy for the muscle (they provide between 70-90 % of the energy): the concentration of FFA in plasma increases,
a greater assimilation of the chylomicrons and a lesser reuptake and synthesis of triglycerides (TGs) take place.
✔This fact is confirmed by an increase of the plasmatic glycerol, a decrease in the FFA: glycerol ratio in plasma and by the reduction in the use of glycogen.
2- Benefits of high-quality proteins
The administration of high-quality protein immediately after intense exercise provides benefits. The synthesis of protein lost during physical exertion is twice as fast and protein catabolism is reduced by half. In this case, it is not very clear when is the best moment to carry out a replacement.
exercise the metabolism
Cease in the myoelectric activity
✔The mechanism responsible for the digestive changes seems to be a cease in the myoelectric activity that controls
peristaltic waves.
✔It has been seen that the digestive resting time is related to the composition of the food ration and not to its energy
concentration. The myoelectric activity is abolished for a long time with fats > sugars > dairy proteins.
✔For this reason, and depending on the volume of the food ration,
it is recommended that 8-16 hours pass after ingesting a food
ration rich in fat before exercising.
3- Benefits of carbohydrates
Between 30 and 120 minutes after finishing the exercise, this recovery is maximum. After 120 minutes, the depletion of glycogen decreases to half. Glucose in the portal circulation sends a signal that stimulates the synthesis of hepatic glycogen but inhibits muscular synthesis.
4- They do not present hypoglycemia after exercising
The occurrence of post-exercise ketosis and hypoglycemia is not common in dogs.
They are capable of performing resistance training tests after having been in fasting conditions for five days, without receiving any water while running (although their resistance is increased by more than 70 % when we provide
them with water during exercise), and show normal glycemia levels at the end of the test.
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