A 2017 study found that grip strength only drops when blood flow is restricted in the late cocking position, suggesting some pitchers may be dealing with vascular limitations during throwing without realizing it. This could help explain “dead arm” symptoms like loss of command and velocity even when imaging looks clean. It also points to a bigger issue—if forearm muscles aren’t getting enough blood flow, the elbow takes on more stress, which may increase injury risk over time.
