To explain golf exercise benefits to a golfer takes a little convincing, but in a short amount of time they become believers. There are so many I can't possible list them all in this article, but you will be motivated to take this approach.
Some of the main golf exercise benefits are; improved power for longer drives; dramatically improved stability for better consistency; a body that moves freer, removing tension from the swing; more energy for 18 holes; elimination of injuries; weight loss; improved concentration due to a reduction in fatigue; I could go on-and-on.
Improved Power For Longer Drives
If your body is weak and inflexible you will not be able to achieve optimal swing mechanics. Such things as a full shoulder turn, with minimal hip rotation; creating and retaining torque (energy) in your core for maximum clubhead spead; proper sequence of motion with muscles firing at the appropriate time; being able to swing just a little harder on long par 5's and still be in control.
Removing Tension From The Swing
When you improve your flexibility (range of motion specific to your golf swing) you are able to make a full backswing with no tension in the supporting muscles of the swing. Like the shoulders, lower back, upper back (lats), and even the wrists. It is known in most athletics that less tension equals more power.
More Energy For 18 Holes
One of the biggest culprits of back nine blow-ups is loss of energy resulting in poor mental confidence and swing mechanics. I see this one all the time when I play