In the past 8 weeks, I have taken a course from Keith Bandli at Superior PT called NG360, which is specifically designed to help with balance, strength and flexibility during your golf swing. You will learn very specific exercises to strengthen your core and put flexibility in your swing, while maintaining balance through your swing.
I played golf for the first time yesterday and birdied my second hole! These classes have clearly helped with my balance and helped with take away and follow through flexibility. I am 64 years old and the regained flexibility is a big deal.
I highly recommend this course to any age golfer who would like a little more balance and flexibility, as these are important ingredients to a lower golf score and great golf experience. Keith does an excellent job instructing!