Whenever I go to flex my mare, on the ground, or in the saddle, she doesnt bend just her head, she moves her whole body around in a circle. I am not sure if its just because she is really stiff, and can't bend all the way, or she just doesnt understand what I am asking? I have worked with her 'flexing' during warmup for about 20min. At the most, and she still doesnt give. She just moves her whole body around in a circle.
Im really confused and am not sure what to do next?
Any suggestions would help!