The legs are taped because when horses are running their back legs come up and will sometimes clip the back of their front legs. So to prevent injury they tape legs.
Taping (rundown bandages) the back legs prevents injury to the back of the ankle. Rundown injuries are caused as the horse tires which results in the back of the ankle and sometimes fetlock being abraded by the track surface if it is not taped.
Horse.
So they use the less tired legs for support
I think what you mean is wraps or boots... not socks They wear them for support and to protect their legs from scrapes if the legs interfere with each other
from howrse.com: yes
some horses get pulled tendons and stuff like that in their legs, if a horse stumbles it can fall and die of a broken leg/neck/back.
Of course; the horse must walk and warm up with movement before running.
Horses are quadrupeds, so they have 4 legs.
They can be good race horses against other Morgans, but not against Thoroughbreds or Quarter horses.
Twenty horses can race at a time
Racehorses allowed to live after retirement usually die at 15-20 years from heart failure due to enlarged hearts. However, to produce 1 superior race horse, many horses are bred, and the inferior specimens are usually put down. Many race horses are destroyed because of broken legs, as racing training begins at 1 1/2 years of age, before the horse's skeleton has matured to maximum strength, and weaknesses in the legs often show up in racing as broken legs. The majority of injured or retired race horses are put down as well, as their feeding and care is a liability of the business of horse racing. If these 'spent & destroyed' horses are factored in, the life span of race horses is less than 8 years.
horses.....
All horses have the chestnuts on the inside of the legs.