Before you use this exercise, you may want to brush up on your hand position. I recommend this article:
And now, to help develop good hand posture and stable riding hands, the:
Carry a Crop Exercise
Have the rider hold a crop or stick across their hands like this:
This picture is from the Murdoch Method website. For the full article, go here:
A good quote from this article:
“No matter where you place them, it is important to carry your hands. In other words, they need to feel connected to the rest of your body, not sit there like limp dead fish.” – Wendy Murdoch
Anyway, have the ride carry a crop for the warmup, first 10 minutes, or whole lesson! I used it on 2 riders today and it really helped.
Here is a video about this exercise:
Note: This is not professional advice, this is a blog. I am not liable for what you do with or how you use this information. The activities explained in this blog may not be fit for every rider, riding instructor, or riding center depending on their current condition and resources. Use your best personal judgment!