Comparison of Windup and Stretch Pitching Biomechanics in Baseball With Implications for Safety and Performance.
Glenn S FleisigJonathan S SlowikCharles B KutzRafael F EscamillaPublished in: The American journal of sports medicine (2024)
The decision to pitch from both the windup and stretch or only from the stretch should not affect a pitcher's performance or joint stress (and injury risk).