Originally Posted by 3Horses2DogsandaCat View Post
I was going to suggest the same thing. When I started riding again as an adult, my trainer made me spend a lot of time standing in the stirrups in the walk and trot, and it helped my balance tremendously. Looking at your videos, it seems like you are struggling to balance. I can't tell if it's because you are squeezing with your knees rather than letting your weight sink into your heels. Doing the two-point exercise will help you align your body to stay in balance.
Another thing I'd add, which helped with position and balance for me, and helped stabilize my lower leg:
Think about getting your weight into your heels by pushing your knees down and back towards them. I've found that helped with so many things!
-Allows you to get your heels down without bracing and having your leg come forward
-Keeps the inside of your calf stable against the horse, instead of pinching with the knee
-Gets your leg under you in the correct alignment
-Encourages using the backs of your thighs as a stabilizing extension of your seat.
-Discourages gripping inward with knees and thighs, which only creates tension and pops you out of the saddle.
Just by keeping this in mind, I was able to improve my seat a lot, and my posting trot, too! I had previously been pushing off the stirrups too much. By thinking of using my leg this way instead, I was pushing down into my heels, like I should be.