I wanted to share a post on the importance of the hips in the transition & downswing sequence as I have been reading a lot of different opinions on this subject.
We use a highly advanced TPI 3D Biomechanical Swing Analysis system with all our high level players.
The data is very clear that low handicap golfers fire their hips (rotation) to begin the transition phase of the golf swing and many high handicappers do not. Most high handicappers have upper body dominated swings which causes a lack of power and slicing of the ball.
The golf swing really is a ground up motion where we build a load from the ground and transfer that load into a force as it travels through the body.
The first rotational speed multiplier is the hips. Good players transfer that force via hip rotation into the torso and up the chain. Many high handicap golfers never transfer that force as they fire the upper body first.
Here is a video discussing what I mean.
Here is another video using my 3D system working with a customer to improve distance and swing sequence. We increased Hip Speed and increased his swing speed by 15 MPH in less than 1 hour!
Today's technology allows us to see and correct many issues with the swing. Hip Speed and sequence is critical to become a good ball striker.