Sounds like she has been ridden for a year now? She is three? So I'm not clear as to when she does this stopping thing. When she stops try to remain relaxed. Be aware of what you are doing at all times. Did you gather up the reins because she was going too fast just before she stopped? Horses can become overwhelmed if they get different messages than what they are accustomed to and can "shut down". When she stops on you. Weight your stirrups alternately, left then right and reach down to pull your pant leg down, fidget basically. You are showing her you are well seated and not going to fall off. Use a gentle but firm leading rein, like say the right rein to turn her right and increase the rein to turn her as you put pressure behind the girth with your right leg and at the girth with your left leg. Cluck and tell her "walk" with authority ( you said her x owner used verbal commands). Turning her, which is off balancing her is the easiest way to get a horse unanchored and moving. As soon as she moves into the turn, relax the rein but keep the leg on for a full stride, then cluck if she feels like she is going to stop again. Try to catch it before she actually stops.
When she stops again, do the turn again, moving her again and repeat. You will be thinking this is not the kind of riding you had in mind, but hang in there because she is thinking about these things too. Eventually she will do what comes naturally and just walk forward and mentally fatigued.
This will probably work for you. I'm guessing she has made an assessment on you and decided you don't know so much and she can be ALPHA mare. it's ok, she will probably turn out to be a good horse, just you have to turn the tables on her and let her know she is in your school now and you're the teacher. Ride with a halter on under her headstall, a single ear works well for this. Have a 10-12 foot lead line on the halter and tied to the saddle horn or rope string of the saddle. If she anchors and will not move into a turn, get off her and make her work circles around you in a brisk but controlled trot. Do this until she looks like she wants to walk, but don't let her walk until you say so. Then get back on her. If she doesn't move again, do first the leading rein into the turning to get the legs moving and if she still balks, get back off and lunge her around you again. Always calm and unemotional because you want her looking for answers, not reacting to your distress or anger.
Since she was trained with verbal commands, I would continue to use them at least until you and she have communication solid off the leg. If you lunge her around you, try to keep that at a medium trot. Her legs are young and joints can get injured if she is chased into frantic movement or a canter in this small circle. Also I don't want her to get defensive and kick out at you. Do not do battle with her. What you are teaching her is you will get her to move her feet even if she doesn't want to.
Also to give your crop or dressage whip a little magic, tie a little piece of plastic onto the end of it. I like to rip off one handle of a plastic shopping bag. Do not introduce it to your horse and make not a big deal of it. Carry it in the rail hand and resting over your thigh. Try everything else first, but if you need reinforcement with the crop, first see what happens when ou raise it off your thigh like you're going to use it, if she moves off like " geeze there's something weird on that thing" good, well just rest it back on your thigh, you got what you wanted. If you need to use it, smack her once on the topside of her thigh, up high behind your own thigh( with the clucking and command to walk) with your leg pressure. When smacking her with the whip make sure you are looking forward and remain on both your seat bones, heels down and weighty. A horse is less apt to buck if done this way.
I know it's a lot, but it is just temporary, she will sleep on it and be better the next day, or maybe the next back to her old self.
Try to ride consecutive days during this training series.
Did her bit change? How does she get along with the gelding you bought?
I hope this helps.
Last edited by CASugar; 01-15-2015 at 02:36 AM.