Ground poles and cavaletti
Re the poles - my physio said a really good exercise is to stop the horse half way over, so front feet have steoped over but back feet still behind. Then when you set off again the horse has to really engage his muscles to step his back feet over the pole. Actually I think that was to strengthen back rather than bum ... but it is good fun on a lunge or end of a long line getting the horse to stop in the precise position
Yes you can do it riddenThat sounds like a really interesting one to try thanks! I don't lunge or long rein my share so hopefully it's okay to do ridden?