Power in the downswing is initiated from the ground up. With proper pressure from the feet and legs into the ground you can create a stable foundation so that you can first accelerate, then quickly decelerate the hips during the downswing. When the hips decelerate the torso can speed up. When the torso decelerates the arms can speed up. Finally, when the arms decelerate near impact, the club speeds up.

Tour professionals are experts at this sequencing from the ground-up, and the accelerate/decelerate cycle. In fact, decelerating may be one of the most important aspects of a proper sequence that you can learn. For a proper kinematic sequence to unfold your body not only has to initiate acceleration, but also accept deceleration. If there is a physical weak link in your body, in terms of rotational mobility, you may have difficulty performing a proper sequence. Likewise, for your body to accept deceleration of the various segments, it needs to have functional stability.

With 3D sensor technology, we can now accurately measure and graph your entire kinematic sequence, isolating each important body segment. If we detect a weak link in the chain, we will be able to diagnose it as a swing fault and/or physical weakness.

The efficient swing graph is from a highly ranked PGA Tour Professional. It might be "easy" to guess who this person is. All segments accelerate and decelerate in the proper sequence—pelvis, then trunk, then arms, and finally the club. Maximum clubhead speed is thus produced at impact. With the inefficient swing, however, the firing sequence is out of order, especially with regard to the pelvis and trunk. We could surmise from this graph, without even seeing this golfer swing, that they were initiating the downswing from the torso and shoulders and accelerating the arms and club prematurely. Some would call this problem "casting." The result: maximum clubhead speed, as evidence by the peak in the graph, occurs before impact.