I am a casual golfer, and if you see me play, you would understand why. Don’t follow my lead on the course, but rather the following three tips for getting into golf-shape by focusing on your core, which helps improve balance, leading to consistent shot-making and contact, faster club speed, and longer distance.

1. Sit on a stability ball (appropriate for your height), with arms in a forward position.  Hold a medicine ball (appropriate to your strength) straight out, then, without moving your hips, rotate on the ball in a slow, controlled motion, twisting from one side to the other while keeping your waist stable. To increase the level of difficulty, raise one foot off the ground and then switch side.
2. Begin in a lunge position with your right-foot forward and your knee over your ankle. Your left foot is back to provide stability, but with your heel up and knee towards the floor. Hold the medicine ball with both hands at your left hip. As you straighten up out of the lunge, lift the ball until its overhead. Lunge again, but this time bring the ball towards the right hip.  Repeat.
3. Do yoga, as it improves core strength and stability.  It teaches you to focus on your breathing, which helps you stay focused on your shot.

Also, work on your flexibility, targeting the shoulders, back, and legs.  This will improve range-of-motion, speed, power, and position, and lead to more distance, consistency, and prevent injury.  And drink lots of water as dehydration can cause fatigue and increase the risk of injury.