Try This: 24 Standing Ab Exercises to Strengthen and Define Your Core - Heathline

As soon as Panzer entered the Catosphere today, the Panzermobile was shaken by clapping and cheering.  Following all the hullabaloo took our speedy kitty boy to the Healthline site. It didn't take any digging at all to see the exercise instructions there were what was causing all the happiness. While this doesn't have anything to do with books or publishing or writing, it is interesting.  Just as svelte as before Covid.
Like a lot of us during the Covid-19 lockdowns, Panzer hasn't been able to go outside and get any exercise. Consequently, he has gained a little weight, so we'll be starting the exercise program tomorrow.

Panzer says, "Maybe you and What's His Name have gained weight, but not this little kitty."
 
To  check out the site tootle over to Home Exercises