My "workout" depends on which horse I'm working with. Generally, I like to do at least 5-10 minutes walking on a loose line. Bending and doing lots of circles to warm up their legs. Moving onto the trot, I like to keep them busy with small circles then big circles, then switching directions and repeat. Lots of bending and doing some lateral work to get them moving. I also like to work on our 'woah' , so my horses learn to go from a canter to a standstill by saying one word. (It really works too!!) Then into the canter, I do at least three or four laps each way with twenty meter circles and then I give them a few minutes of walking break to stretch out for a breather. Then onto lead changes. I don't work on them too too much because they are hard. (this is for my young horses in training just so you know) . After a good 15 minutes of lead changes, breaks, and trotting periods in between. Then I work on random transitions (ex; halt to canter, trot to halt, canter to halt, canter to walk..etc) and some pole work before a 15 minute walking coolout (while riding) and then I get off, untack, and handwalk for another 10-15 minutes.
Intense workouts LOL!!
But my horses learn quickly and are soo willing to please. I love 'em!!