Some golf swing instructional tips suggest that you should keep your left arm rigidly straight during your golf swing.
On the other hand, some golf swing instructional tips recommend it is not necessary to keep a rigid left arm during your swing.
Which advice is the better one?
I believe a very rigid left arm can restrict your shoulder turn just as much as a a very tight golf grip. Both have a tendency to interfere with a free flowing golf swing. Both can prevent you from hitting your golf ball straight.
It is much more important to make a full shoulder turn during your back swing in order to increase club head speed than to overly concentrate on keeping your left arm absolutely straight.
The body has a natural ability to adjust itself in many ways.
For example, assuming you do not keep your left arm even moderately straight during your back swing but nevertheless make a full shoulder turn, as long as you keep your left heel planted, maintain eye contact with your ball and do not manipulate the face and path of your club of its pre -swing alignments, the impact position of your club face should replicate its address position.
This means the left arm will naturally straighten to its pre-swing position at impact.
There is a second problem in trying to keep your left arm too rigid during your golf swing.
You can only concentrate on a limited number of swing thoughts during your swing, irrespective of your ability to juggle several things at a time.
Your main swing thoughts should be to keep your left heel firmly planted and maintain eye contact with your ball from the beginning of your swing through impact.
That is, if you want the impact position of your club face to replicate its address position.
When you then add a third swing thought such as to keep a rigid left arm during your swing, you can easily lose focus on the first two.
Yes, you should try to keep your left arm reasonably straight but this will occur naturally if you make a full shoulder turn during your back swing.
Thus, the better golf swing instructional tips are to keep your left heel planted, maintain eye contact with your ball and make a full shoulder turn.
If you do this you will not need to concern yourself with how straight you should keep your left arm during your swing.
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