I’m not a doctor, while I do have a bit of knowledge regarding kinesiology attained through swing research and a lifetime of athletic pursuits, but this article really set my Spider Senses tingling when I read about Jordan Spieth’s wayward ECU tendon.
Basically, the sheath that holds his left ECU tendon in place is torn and it pops out from time to time, leading to his having to WD from events or miss them altogether when this occurs.
I’ve taken Jack Nicklaus’ driver swing from the Masters in 1963 to illustrate the power of hip & leg action regarding the leveraging of the golf swing, something that has been lost with both the Modern Golf Swing models & the Flying Foot Syndrome.
It would likely surprise modern golf students to learn that what makes it so difficult to get a 90 degree shoulder turn at the top with a planted leading heel is also what makes the Classic Golf Swing so effortless in power production via leverage.
WAX Golf 