Yes, I just went outside and bribed the chickens with mealworms for that video... my point being she couldn’t stand or walk on her own at all when I took over her care, she was also generally in much worse condition. So with rest, restricted movement, and care, I fully believe your chicken will be just fine. Also they will tremble when held if they aren’t used to being handled, sometimes even when healthy, so take a few deep breaths and calm down.