problem in the recording of the arm movement

Hello,
I try to make a recording with the position of the arms like on the picture 01, but I can't do it!
Here is how I proceed:
- I move the hand to have the right position on the scene
- then I do ctrl+2 to have two recording frames
the problem is that the arm is modified (picture 2), I removed the arm IK behavior but it did not change anything.
thanks in advance for your help!