Impulsion
Controlled energy in forward movement of the horse.
In season
When a mare is in heat.
Indian Shuffle
The Indian Shuffle is a lateral gait, which means the two legs on the same side of the horse move forward before the opposite two legs move forward. In the pure Indian Shuffle, each foot hits the ground a fraction ahead of the other.
Irons
Stirrup irons are metal items to tack attached to the saddle by the stirrup leathers to hold the rider's feet.
Ischium
One of three bones of the pelvis which forms the back of the pelvis floor.
