I am guessing you can still do weight lifting, and wondering how much more you should lift in the hand not in a cast?
If so, don't bother. At most , it is 1-2 lbs. There is a lot of air in plaster, and that is why they use it. Tough enough to immobilize the affected area, but not a huge weight. Just lift as you normally would. It isn't like you are going to develop one arm more than the other from having an extra lb or 2 attached for a few weeks.
Just be happy they let you lift. It could be 6-8 weeks of no arm exercises.
"We can't solve our problems with the same thinking we used when we created them "
- Albert Einstein
“Whether you think you can, or you think you can't--you're right.”
- Henry Ford
| current weight: 179.6