No stirrup work

At a barn I used to go to, my old instructor had me do some no stirrup work. She'd have me take one foot out of the stirrup and post with one foot in the stirrup, do a sitting trot without stirrups, and do a posting trot without stirrups.

I rode a horse with a very bouncy trot. What is the best way to sit a sitting trot and not bounce around on a horse with a very bouncy trot? Also is there any correct way to post without stirrups? My old instructor would tell me not to squeeze with my knees.

It should help to keep your legs long (really stretch them down) & relax. :) Leaning back a bit more should help as well.

Ugh my horse is the same way! Focusing on keeping your lower back relaxed and your arms in by your side actually helps a lot even tho it sounds weird. Also, sitting up tall and keeping your heels down.
For thecorrect way to post without your stirups, yep just don't grip with your knees, try to distribute the pressure detween your thighs and inner calf.

Ive been doing some of this stuff with my husband because he has been having trouble with his left foot. Only his left one though lol he kept losing his stirrup on that side and couldnt keep his heels down so I had him drop his right stirrup but keep his left. It helped but he had the same problem as you are having.

Sometimes its hard to explain but 3days3ways explained it well. To add to that ill tell you what I told my husband. Rising trot without stirrups (or with for that matter) is like walking. When you walk you basically evenly distribute the weight/force between all your muscles. You don't apply extra pressure with your knees. Its the same thing when you are rising/posting. You should be applying an even pressure all the way down your leg. Sitting tall and making sure your heels are down is mighty helpful too.

Stay relaxed, be confident and sit tall. Being relaxed is such a huge part in how well these things may or may not work. My hubby was also having major cantering issues until he learnt to relax and go with the horse instead of tensing up and going against him. But that's a whole different story there lol

Im still not sure if I should to do no stirrup work with my horse yet because his back isnt that strong =P He's still in training and I dunno if like itll hurt his back ya know. I can't decide if I should start no stirrup work with him yet or not

No stirrup work improves everything! Your grip, your balence, your posture and more. It's great work and it works well

Regardless of how bouncy the horse you're riding is, the way you sit the trot should not change. Continue lots of non-stirrup work, keep the weight down in your heal, relax your hip, stretch up tall and look ahead. Work on the lunge line will help you focus on your position without having to steer your horse.

Good Luck.

Get in with the rhythm of the horse, like when their right hind is forward, you should feel the urge to lean your hips to the right, then you just rock your hips with the horse, but not to an over-excessive amount of rocking, then you'll look stupid

Ive never heard of posting with one foot in a stirrup? What it the sole point of it? Make each leg independent?

My old instructor had me post with one stirrup for a few seconds so if I was at a show and was doing a posting trot and my foot falls out of the stirrup to keep going and put my foot back in while moving because I can't stop the horse to put my foot back in the stirrup.