With professionals training much more like Olympians now, there also seems to be a notable increase in injuries.
In the '70s, '80s, and '90s, bad backs seemed to be the most common injury. My suspicion is that these back injuries were caused from players contorting their bodies in an attempt to get the most out of wooden heads and unforgiving clubs.
Knee, hip, and back injuries continue to plague the tour, with players seemingly spending more time on the sidelines than on the links. The modern golf swing is one of such enormous torque, resistance, and explosivity that is is clearly taking a toll on today's golf superstars.