Not easily. It will normally effect each frame that occurs after the one you are changing. However, if you carefully change the frame you need, and then set everything back to where it should be in the next frame, then it should have the effect you are looking for. I've done this by activating "snap" and then counting the number of positions I move each vertex. In the next frame I move it back the same number of positions, and it will be like I never moved it.
It is a good habit to get used to working in sequence with animations, because they are hard to adjust like this.