When you need to restrain a horse while another person is examining or treating the horse, there are some simple restraining techniques you can use.
Standing on same side
This photo shows the correct position to stand when two people are working with a horse. It is usually safer if both people are on the same side so that if the horse tries to move away it is not going to push into either person.
Horse against wall
If a horse wants to move away from the handler you can put the horse against a wall to prevent it moving.
Holding up leg
You can either put a strap on one leg or you can hold it up yourself so that another leg can be treated. This discourages the horse from moving the leg that you are treating.
Holding the skin on the neck
Taking hold of the skin on the neck can also discourage the horse from moving (this is called a skin twitch or tinker's hold).
Keep visitors away
The handlers need an escape route and plenty of room to move.
Keep spectators at a safe distance and concentrate on what you are doing.