Changing the reference point for a hitter can drastically shift their perception of a movement
Do the hands move forward through space? Absolutely.
Do they move relative to the torso? Barely.
Some common reference points are:
• Another body part
• An external object
• Space
Coaches love looking at hand path, but what moves the hands during the swing?
In this video, the torso position is fixed. This allows us to see the hand movement in relation to the torso, essentially showing us what the arms are doing. The answer? Not a whole lot.