Bill Hartman 17:42–20:47
Alright, so you've got a wide ISA, which again that's a bias towards force production, so that's probably why you are attracted to the strength sports to begin with. Now you've got to become a turning athlete, and so a wide ISA is designed to restrict that turning. So that's where we need to start to make a change; we need to restore the dynamics to that infersternal angle. And you're right that deadlifts and bench presses would most likely help to reinforce your ability to not turn, as you would in say powerlifting. However, the other exercise that you suggested, so presses, chins, etc., are also compressive activities. So anything that is bilateral where both arms are doing the same thing at the same time—a press, a row, a chin-up, a deadlift, a squat—are all going to be somewhat restrictive in regards to you recapturing your ability to turn. So if we were to pick a squatting activity that may actually enhance our ability to turn, we're probably looking at some form of heels-elevated squatting, working towards a front squat, which would probably be the top-end squat that you would probably want to use. Zerchers are on the table in that regard if you're going to do something bilateral. When you're working from somebody with a very, very wide ISA that's been biased that way through a lot of high-performance, high-force work, you're probably going to want to emphasize some sort of reciprocal, alternating activities as your primary focus to try to restore that. I just posted an Instagram video on a sled drag that will give you another strategy to help restore the dynamics to your ISA, which will actually enhance your ability to turn. But I think that we have to all be considerate of the fact that, especially with rotational athletes, we have to be very, very careful about our exercise selection. So again, anything that is bilateral and symmetrical—presses, rows, chins, deadlifts, back squats, etc.—they're all designed to not turn, and will create compressive strategies that will reduce your ability to turn. Now, up to a certain point, however, they may be performance-enhancing because they do help you produce more. So if I have a golfer, I might do some chin-ups to allow him to increase his force output, but I would have to be very, very careful to monitor all aspects of his ability to maintain his turning capabilities. And so again, I'm looking at shoulder rotation, hip rotation, the ankle-foot to make sure that I have full excursion of pronation and supination so I can make sure that I can capture my hip positions during a golf swing, during a tennis serve, or during a throw. So all of these things are considerations. So, Josh, good luck with the recapturing the turn and the rotation.
exercise selectioninfersternal anglerotational mechanicsrespiratory dynamicsbilateral vs reciprocal training