In regards to, how do I stop my left arm from bending in golf?
Additionally, does your lead arm have to stay straight in golf swing? In an ideal position, at the top of the backswing, your lead arm should be straight and your wrists should be hinged. Your wrist hinge in the golf swing is one of the key components in creating and storing power.
Subsequently, should Lead arms be straight? So, what is the correct way to do it? Golfers should try and keep their left arm as straight as possible without it being rigid, or locked, but some bend is fine. Most professional players start with a straight left arm at address, which bends to around five degrees at top of their backswing.
Also the question is, how do you keep your left arm straight in follow through?
The straightening of the left arm is the response to a proper release of the golf club, not something you will need to try to do at the moment of impact. If the right arm is pushing too much or the left arm is too tight through impact, this will cause the left arm to bend.