probably sore back or he is afraid you are going to slam it down on his back. my rescue mare fell to the ground when i went to tack her up the first time. found out her past owners slammed the saddle on her back + caused pain
I also do not have a grooming room, I have to tack him up in an open area (he is tied to a fence). Having a person on the other side of him would help when I am tacking up as he would not move towards them making him stand still, however this is not the case as I usually tack him up by myself.
Does anyone have an tips for teaching a horse to stand still?
Hope you wanna say "taking" and not "tacking" ;)
Well what do you mean, when you take it out of the stable? If it is moving a lot, put it in a grooming room, tie it with ropes and then it wont be able to move that much...
otherwise just try to take your time with it, groom it, cuddle it, and equip it bit by bit, one thing at the time with encouragements.
The best way to fix an issue, whatever it is, is to try and try again, congralute a lot when it work a little and to do not get mad for any reason.
Conclusion, take it easy and try to understand why it is moving .