When “casting” isn’t a bad thing.
In 3D data from a full swing, we should see the arms reach higher rotational velocities than the trunk. But finesse wedges, including greenside bunker shots, call for a different pattern.
As Dr. Rose explains, releasing the club early can reduce arm speed, causing the trunk and arms to move at similar speeds. For finesse shots, casting works in the golfer's favor.
It’s an example of how we organize movement differently when the task demands precision over power.