Stiffness in an older TWH

I took in a 24 yr old walking horse that is my horses great grand sire. He is fabulous and healthy, but gets stiff. I have rubbed vetrolin lineament in his muscles which seems to help, but I would like to know if anyone has stretching exercises I could do with him.
I am a dressage rider and know a lot of stretch work for trotting horses such as shoulder in and lots of lateral work, but
1- he does not know those exercises yet,
2- not sure if a gaited horse can perform them the same way.

Hey there I was actually just discussing this with one of the trainers at our barn the other day.

Firstly she said to try rubbing peppermint oil on the muscles because it works extremely well for that (never would have thought that!)

I also stretch my mares shoulder (she's only 3, but she fell and hurt her shoulder on some ice in her pen so this keeps her limber while healing) I stand in front off to the side, put my hand behind her hoof lift a bit and pull forward until she is leaning enough on the leg for me to no longer be able to hold it up, then I let go. I do that a few times on each side.

I also get my horse to bend her neck both ways before we start, drop her head to the ground and I also get her to back up a few times.

Another really good thing to do is stand behind your horse, rub the sides of each hand on either side of the tail. This will cause the horse to arch its back and stretch their back out. I do that either before or after a session (both is probably better though)


Just a few ideas from things we have done, hope that helps :)