[Physioguy]

"Anything that's good for your health is good for your golf game!"

Great quote! While "golf specific" exercises will help with your swing, and are certainly appropriate, a solid base of overall physical conditioning will also help. How many of us have a great round going and then crash and burn over the last 2 or 3 holes??? This is usually due to a combination of poor physical conditioning,dehydration, poor diet,etc. So, spin,swim,run,walk,lift,etc.
Your body and your game will thank you!
Stay healthy folks Dr Dave

I guess I need to clarify my suggestion of "golf specific" exercises. I think these exercises will most significantly affect the golf muscles, and lead to improvements in endurance, distance, and, more importantly, reduce or prevent injuries. I agreed that general fitness activities are always a good thing, but if the question is about what will improve your golf game, and I think the original post mentioned distance, specifically, then I would recommend something a little more golf-specific. And, if you are crashing and burning towards the end of walking (or, heaven forbid, riding) 18 holes, I think a spinning class will kill you!! LOL!