05/25/2026
When it comes to throwing, the posterior cuff — especially the teres minor and infraspinatus — acts like the BRAKE system of the shoulder.
While the big muscles help create velocity, these smaller rotator cuff muscles are responsible for slowing the arm down safely after ball release. That means they absorb massive amounts of force every single throw.
If they’re weak, fatigued, or not conditioned properly, the shoulder can take a beating over time.
That’s why training the posterior cuff is critical for:
• Shoulder health
• Arm durability
• Recovery between throwing
• Velocity development
• Injury prevention
Train the accelerators… but don’t forget the brakes. 🚨⚾
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