A greyhound draws in 60-90 liters of air in 50-90 breaths in a 30-second gallop, extracting 1500 mLs of oxygen from the air to metabolize the energy in its muscles.
During the gallop, the blood pressure in the lung arteries increases from 7 mm mercury pressure units at rest, to 40 units at the gallop, similar to the pressure peak in a human athlete, but only one third of the maximum pressure in a racehorse’s lung artery, which reaches 120 mm mercury pressure, or roughly 2.1 psi of pressure.
A greyhound produces around 100Kcals or 100,000 watts of waste heat energy during a 30 second race, sufficient to bring 600mL of tap water to the boil in around 2 minutes.
After a race, the gut function is restored over a 30 minute period to digest food, but the immune system is depressed for 30-120 minutes after a hard gallop.
Loading stress placed on the limb bones is repaired over a 7-10 day period after a race.
What a dog !!!!
Reprinted from Greyhound-Data