Everybody needs to have their version of 2-R - a get out clause for using images out of desired context!
The clip I posted, which Jeff referenced, was meant to show the initial movement of left arm off the chest, with left upper arm not being help tightly to the chest wall.
You can not tell how much acc.4 has released at impact (last frame) because of the video angle.
You can make no conclusion re. wrist motion/acc 3 release from this clip.