The hanging back swing flaw happens when the player fails to shift their weight onto their lead leg during the downswing. This swing flaw really prevents power generation from the core and hips.
HANGING BACK, WHICH KILLS YOUR POWER!
When a player demonstrates this characteristic they end up compensating by placing the ball further back in their stance to ensure they can make contact with the ball. It mainly leads to inconsistency in ball striking as well as poor distance.
The tie between the body and this swing flaw can be seen in poor balance/stability in the lead leg, poor mobility or lack of motion in the lead leg (hip or ankle), or even an injury that is preventing the player from loading the lead leg because of fear of soreness or pain. A lack of power and strength in the lower body can also cause a player to have more of an upper body golf swing, which is very inefficient.