My job description: using my hands to free soft tissue to encourage length, motion, and geometrical balance in the muscles, tendons, and ligaments. I have to be extremely observant, since communication with animals is non-verbal, to figure out how they can be better aligned and balanced.
After a session, most animals are both relaxed and energized. Since I see a bodywork session as a collaboration between me and the animal (not me imposing something upon them) they are always happy to see me again.
One of the reasons it is so important that muscles and fascia be relaxed and elastic is that if muscles are tense, when the hoofs hit the ground, more concussion will be taken by the joints. This is a set-up for injury and early degeneration of the joints. Healthy muscles make sure that the impact when the hoof hits the ground is distributed throughout the body. Supple muscles are able to absorb the force of the feet hitting the ground much better than tight muscles.