Downswing

Execute the downswing as calmly as the back swing... transfer your weight to the open foot.

The downswing causes panic in some golfers and bliss in others, as it is never easy to execute this part of the swing with both coordination and confidence. There are so many things to think about that we sometimes forget to accelerate the swing at the right moment or we start it too early. Just getting over the anxiety of moving the hands at the beginning of the downswing is a victory in itself.

During the back swing, the triangle formation forces the shoulder to follow the chin. The shoulder pulls the hips and allows the knee to turn in. Finally, the knee forces the heel of the open foot to lightly lift off the ground.

During the downswing the opposite happens. The weight must be transferred towards the front, the heel returns to the ground while the other lifts off the ground, allowing the knee to follow the target. The hips stay ahead of the shoulders and hands, therefore, the lower part of the body must be turned before achieving acceleration. 

The downswing and finish (right-handed golfer)
Based on a solid back swing, the downswing begins with the left heel returning to the ground. Subsequently, the right knee points toward the target forcing the right heel to lightly leave the ground, and the hips to pivot (this is known as opening up to the left). All of this occurs before the shoulders move and the hands accelerate.

At the beginning of the downswing, the bottom of the handle should be aiming for the ball. During the downswing, the head should remain behind the ball, especially when using a wood and the right elbow should stay as close to the body as possible until the contact with the ball is made. Also, the 90º angle formed by the forearms and the club must be kept for as long as possible. Finally, the right hand must turn towards the interior after the contact with the ball is made.

Once you make contact, your head is straight and your back foot lifts.

Because your hips rotate before your shoulders, you automatically maintain your arm extension.

At the end of the downswing, your whole body faces the target.