Balance is important for the golf swing so that you can maintain your body angles throughout each phase of the swing.
Doing balance exercises can improve your balance capabilities within your golf swing especially at higher speeds.
If you have poor balance, you have to slow your swing speed down so you won’t lose your footing during your swing.
Simply practicing balancing on one leg can improve your nervous system’s ability to control your balance. Practicing balancing on one leg in different planes of motion can further help your golf swing.