05/09/2026
When rehabbing a UCL and/or flexor-pronator injury, its crucial to find ways to to effectively load the medial elbow in provocative positions.
This is a mid-stage rehab drill we will use with pitchers that typically have symptoms at ball release. I’ve found the TRX to be the best suitable option for this variation because you can better contour the fingers to get the best ability to isolate the flexors (primarily the FDS). A squat rack is also a viable option, but it sometimes takes a little longer to develop the contraction in the right area.
Not shown in this video is the other forearm loading we will do in 90-90/valgus positions, along with eccentrics for the entire flexor-pronator group at different angles.
As a side note, having medial elbow symptoms at ball release is typically more common with a flexor-pronator injury. However, I’ve also seen UCL injuries that have symptoms at ball release ,rather than the traditional pain at layback/early acceleration. This is where a thorough elbow evaluation comes into play, as painful phase of throwing is one of many factors that go into determining whether you are dealing with a UCL sprain, flexor-pronator injury, or a combination of the two.
I’ll be having a YouTube video come out next week that goes over my process of differentiating between the two.