I find this video very interesting and this data makes perfect sense to me. When I was in my early 20's(and longer) I had a 28" vertical jump and now it's more like 18". The longest PGA Tour hitters have a much larger vertical jump and the long drive champs are at another level. Obviously there are golfers that are exceptions to this rule(Phil's jump, lol) but the general correlation between vertical jump and hitting it far is real.
I love the discussion about squatting on the backswing and "jumping" or lifting as you approach impact.
I love the discussion about squatting on the backswing and "jumping" or lifting as you approach impact.