Spine Extension in the Follow Through 1
This action is referred to as 'extension' and is crucial for all golfers to achieve (to some degree). If we didn't then we would be leaning over our shoes, off balance and out of sequence. Some golfers extend more than others, just as some will extend earlier than others. (link to extension in detail video 2).
There is a lot of discussion in coaching about 'early extension'. This would mean losing our posture angles (spine flexion) before contact. It is important that we do not confuse this with positive healthy extension after impact, as we see with David in the image below.