
Pitching a baseball is one of the most complex and difficult-to-train sports skills. If you want to throw harder, you need to rethink how you work out. (Check out Justin Verlander's workout.)
Traditional pitching workouts typically involve dumbbell and/or resistance band exercises focused on specific parts of the throwing motion—e.g., Dumbbell Rows or Resistance Band Scarecrows targeting the back and shoulder. This type of training is very effective at increasing strength and reducing the risk of an overuse injury. The problem is that it does little to increase pitching velocity, because it trains the muscles, not the movement. (Find out how to prevent shoulder injuries.)
Instead, try performing med ball exercises that closely mimic the throwing motion. They will increase power in the muscles used when you throw—critical for adding velocity to your pitches. Also, these exercises work similar to plyometrics by improving your muscles' ability to store energy after the wind-up and then rapidly release it into the throw.
If you want to throw harder, perform this med ball pitching workout two or three times per week. Form and technique are paramount, so use a lightweight med ball. The drills instruct you to throw the med ball against a wall, but feel free to use a partner or trampoline if desired.
Focus: shoulder rotation speed
Sets/Reps: 2x10 each arm
Focus: trunk rotation and arm speed
Sets/Reps: 2x10 each arm
Focus: trunk rotation and shoulder speed
Sets/Reps: 2x10 each side
Focus: trunk rotation, arm and shoulder speed; decreased time taken between wind-up and pitch (amortization phase)
Sets/Reps: 2x10 each side
Check out STACK's Pitchers' Guide for more workouts designed to help you throw harder.