Baseball is a rotational power sport. The baseball swing and the pitching delivery are both whole-body rotational movements that generate force from the ground up through the legs, through the hips, through the trunk, and out through the arm or the bat. The power that produces bat speed and throwing velocity comes from how quickly and completely this rotational force can be transferred through the kinetic chain.
Medicine ball throws are among the most evidence-supported tools for developing this rotational power. They allow athletes to train the full kinetic chain through baseball-specific movement patterns at game-relevant velocities, something that traditional strength exercises (squats, deadlifts, rows) cannot replicate.
Why Medicine Ball Throws Specifically Develop Baseball Power
Force production at high velocity:
As covered in the medicine ball chest throw article on this site, throwing exercises allow the load to be accelerated through the full range of motion without the deceleration needed at the end of a weighted barbell or dumbbell movement. This uninhibited acceleration develops rate of force development — the ability to produce force quickly — which is the specific quality that determines bat speed and throwing velocity rather than absolute strength.
Rotational specificity:
The baseball swing and pitching delivery involve sequential rotation through the ankle, knee, hip, trunk, and shoulder. Medicine ball rotational throws train this sequential rotation pattern under load at velocities that transfer to game performance. Squats and bench press, while developing the strength that underlies rotation, do not develop the rotation itself.
Movement variability:
Different medicine ball throw variations target different phases of the swing and the delivery. A complete baseball medicine ball programme covers the hip-to-shoulder separation pattern of hitting, the arm-path of throwing, and the deceleration pattern that protects the shoulder after ball release.
The Kinetic Chain in Baseball
Before covering the throws, a brief framework for how power is generated in baseball:
For the swing:
- Stride and weight shift (linear to rotational transition)
- Hip rotation (the hips initiate rotation before the shoulders)
- Hip-to-shoulder separation (the hips are open while the shoulders remain closed — this separation creates the torque that drives bat speed)
- Shoulder rotation and bat path through the zone
- Extension and follow-through
For the pitching delivery:
- Wind-up and load (rotational coil)
- Stride toward home plate
- Hip-to-shoulder separation (same principle as the swing)
- External rotation of the throwing shoulder (the arm cocks back as the hips rotate open)
- Internal rotation acceleration (the arm whips forward)
- Deceleration (the posterior shoulder eccentrically decelerates the arm)
The medicine ball throws below target each of these phases.
The Best Medicine Ball Throws for Baseball
Throw 1: Rotational Wall Throw (Hip-to-Shoulder Separation Emphasis)
The most fundamental and most baseball-specific medicine ball throw, directly training the rotational power of the swing and the pitching delivery.
How to do it:
- Stand perpendicular to a solid wall with the feet shoulder-width apart
- Hold the medicine ball with both hands at the hip on the side away from the wall
- Load the throw by rotating the hips and trunk away from the wall (the back foot pivot allows this rotation)
- Drive the hips toward the wall first
- Allow the torso and arms to follow as a consequence of the hip drive
- Release the ball against the wall at the moment the arms reach full extension
- Catch the rebound
- Complete all reps on one side before switching
The hip-first cue: The most important coaching point is that the hips drive first and the arms follow. An arm-dominated throw defeats the purpose: the exercise should train the hip-to-shoulder separation pattern, not an arm throw. If the arms and hips rotate simultaneously, the athlete is not developing the sequential rotation that generates baseball power.
Baseball connection: This directly trains the hip rotation that initiates both the swing and the pitching delivery, alongside the hip-to-shoulder separation that is the primary mechanical source of bat speed and throwing velocity.
Ball weight: 3 to 6 kilograms. Heavier than this slows the velocity to below game-relevant speeds.
Sets and reps: 4 sets of 8 per side
Throw 2: Step and Rotate Wall Throw (Transfer of Weight + Rotation)
Adds a stride step to the rotational throw, training the linear-to-rotational transition of both the swing and the pitching delivery.
How to do it:
- Stand perpendicular to the wall in a narrow stance
- Hold the ball at the hip away from the wall
- Step toward the wall with the lead foot (simulating the stride)
- As the lead foot lands, drive the hips toward the wall
- The torso and arms follow the hip drive
- Release against the wall
- Catch the rebound
Baseball connection: The step replicates the stride of the swing and the pitching delivery. The sequential loading (stride → hip drive → shoulder rotation) is the identical mechanical sequence used in game situations.
Sets and reps: 4 sets of 8 per side
Throw 3: Half-Kneeling Rotational Throw (Hip-to-Shoulder Separation Isolation)
Kneeling eliminates the leg contribution and isolates the trunk rotation component.
How to do it:
- Kneel with the inside knee down and the outside foot forward (the classic half-kneeling position)
- The half-kneeling position faces perpendicular to the wall
- Hold the ball at the hip away from the wall
- Rotate the trunk toward the wall and throw
- Only the trunk rotates: no hip drive from the legs
- Complete all reps on one side before switching
Baseball connection: This isolates the trunk rotation component and is specifically valuable for athletes who over-rely on arm power rather than trunk rotation. If an athlete throws significantly farther from half-kneeling than from standing (relatively speaking), it indicates their trunk rotation is strong but their leg-to-trunk power transfer is inefficient.
Sets and reps: 3 sets of 10 per side
Throw 4: Overhead Medicine Ball Slam (Hip Extension + Trunk Flexion Power)
As covered in the abdominal workouts with medicine ball article on this site, the overhead slam develops the hip extension and trunk flexion power relevant to the follow-through phase of both the swing and the pitching delivery.
How to do it:
- Stand with feet shoulder-width apart
- Hold the ball overhead with both hands
- Extend the hips and rise onto the toes to load the throw
- Slam the ball downward toward the floor with maximum force
- The entire body coordinates: hips, trunk, and arms all contributing
- Catch the rebound or pick up the ball
Baseball connection: The overhead slam develops the hip extension and trunk flexion pattern of the pitching follow-through, where the throwing-side hip must aggressively extend as the arm comes forward. Pitchers with weak follow-throughs often show insufficient hip extension at ball release.
Sets and reps: 3 sets of 10
Throw 5: Scoop Toss (Hip Drive and Extension)
A medicine ball exercise that directly trains the hip drive of the swing’s contact point.
How to do it:
- Stand holding the ball at hip height with both hands
- Hinge the hips back slightly (a partial hip hinge)
- Drive the hips forward explosively while tossing the ball upward and forward in a scooping motion
- The ball trajectory should be upward and forward, tossed to a partner or against an angled wall
- The movement initiates from the hips — the arms only guide the ball, not drive it
Baseball connection: The scoop toss specifically trains the hip extension that drives the swing through the contact zone. For hitters who struggle to drive through the ball, the scoop toss develops the hip extension power pattern that is often the limiting factor.
Sets and reps: 4 sets of 8
Throw 6: Shovel Pass (Lateral Power)
A lateral medicine ball throw performed with one hand, training the one-arm power pattern relevant to fielding and throwing.
How to do it:
- Stand with the feet shoulder-width apart facing away from the target
- Hold the ball in one hand at hip height
- Rotate the hips and throw the ball laterally in a shovel-pass pattern (the ball travels sideways and slightly forward)
- The throwing motion resembles a shortstop’s underhand toss to second base for a double play
- Complete all reps on one side before switching
Baseball connection: Directly trains the underhand throwing mechanics of the infield, the lateral power generation of fielding, and the rotational throwing pattern of all positions from non-standard arm angles.
Sets and reps: 3 sets of 8 per side
Throw 7: Overhead Wall Throw (Arm Action and Deceleration)
A two-handed overhead throw against the wall that develops the arm-path mechanics and the deceleration training that protects the shoulder.
How to do it:
- Stand facing the wall at 2 to 3 metres distance
- Hold the ball with both hands in a standard overhead throw position (ball held above and behind the head)
- Throw the ball against the wall with a two-handed overhead action
- Focus on a full follow-through after the throw
- Catch the rebound
Baseball connection: The overhead throw trains the arm-path mechanics (internal rotation acceleration) of the throwing motion, and the follow-through after release develops the posterior shoulder deceleration mechanism that is critical for arm health. The significant eccentric demand on the posterior shoulder during the follow-through is one of the primary injury mechanisms in baseball pitchers, and training the follow-through pattern develops the posterior cuff and periscapular muscles that provide deceleration protection.
Sets and reps: 3 sets of 10
Throw 8: Split-Stance Rotational Throw (Batting Stance Power)
A rotational throw performed from a batting stance split, directly replicating the hitter’s setup.
How to do it:
- Assume the batting stance position: feet approximately shoulder to slightly wider than shoulder-width, knees slightly bent, weight distribution typical for the individual hitter
- Hold the ball at the hip on the back side (the loading position)
- Stride forward and rotate as if swinging
- Release the ball at the equivalent of the contact point
- Follow through completely
Baseball connection: This is the most direct replication of the swing pattern in a medicine ball throw. Performing it in the batting stance means the athlete trains the exact foot position, weight distribution, and hip-to-shoulder sequence they use during actual at-bats.
Sets and reps: 4 sets of 8 per side (right-handed and left-handed hitters obviously perform this primarily from their natural stance)
Position-Specific Emphasis
Pitchers:
- Scoop toss: hip extension drive (most relevant to the pitching delivery push-off)
- Overhead wall throw: arm-path and deceleration training (critical for arm health)
- Step and rotate: replicates the stride-to-rotation of the delivery
- Half-kneeling throw: trunk rotation isolation
Hitters:
- Split-stance rotational throw: most direct swing replication
- Step and rotate: stride-to-contact transfer
- Rotational wall throw: hip-to-shoulder separation
- Overhead slam: follow-through and hip extension
Catchers:
- Rotational wall throw (from squat rise): transitioning from the catching squat to the throw, the rotational throw can be performed starting from a partial squat position
- Overhead wall throw: arm health and pop time mechanics
Infielders:
- Shovel pass: double-play mechanics and underhand throws
- Rotational wall throw: standard overhead throw power
Outfielders:
- Step and rotate (with longer stride): replicates the gather-and-throw mechanics of outfield throws
- Overhead wall throw: long-throw arm path
Programming for the Baseball Calendar
Off-Season (Weeks 1 to 16): Maximum Power Development
The off-season is the primary window for developing the rotational power that transfers to the following season’s performance.
Frequency: 3 times per week, as a primary training component.
Structure:
- 4 to 5 throw variations per session
- 4 sets of 8 to 10 per variation
- Full recovery between sets (90 seconds to 2 minutes)
- Heavy enough ball to feel loaded without slowing below game-relevant velocity (3 to 6 kilograms for most athletes)
Sample off-season session:
- Rotational wall throw: 4 x 8 per side
- Step and rotate: 4 x 8 per side
- Scoop toss: 4 x 8
- Overhead slam: 3 x 10
- Overhead wall throw: 3 x 10
Pre-Season (Weeks 1 to 6 Before Season Opens): Power Maintenance + Specificity
Pre-season shifts from maximum development to preparing the power for game-specific application.
Frequency: 2 times per week.
Structure:
- 3 to 4 throw variations
- 3 sets of 6 to 8
- Slightly lighter ball with emphasis on maximum velocity
- Begin integrating position-specific variations
In-Season: Power Maintenance
The in-season goal is maintaining the power developed in the off-season without accumulating excessive fatigue.
Frequency: 1 to 2 times per week, on non-game days or low-intensity practice days.
Structure:
- 2 to 3 throw variations
- 2 to 3 sets of 6
- Emphasise quality and feel over maximum effort
- Avoid throws the day before a start (pitchers)
In-season sample session (20 minutes):
- Rotational wall throw: 2 x 8 per side
- Step and rotate: 2 x 8 per side
- Scoop toss: 2 x 8
Frequently Asked Questions
How heavy should the medicine ball be for baseball throws?
The primary consideration is maintaining game-relevant velocity. A ball that is too heavy slows the movement below the speed at which baseball skills are performed, reducing the specificity of the training. For most high school and collegiate athletes, 3 to 4 kilograms is appropriate. For stronger professional-level athletes, 4 to 6 kilograms. Test: if the throw feels significantly slower than the game movement it is training, reduce the weight.
Can medicine ball throws improve batting average and pitching velocity?
Medicine ball throws develop the rotational power that underlies bat speed and throwing velocity. Research on rotational power training in baseball athletes has consistently found improvements in bat speed and throwing velocity with consistent medicine ball throw programmes. The transfer to batting average involves additional technical factors, but the underlying power is a necessary component that medicine ball throws directly develop.
How soon before a game should I do medicine ball throws?
Rotational medicine ball throws can be used as part of a warm-up on game day, particularly for hitters preparing to bat. Light rotational throws (5 to 6 repetitions at 80 percent effort) 20 to 30 minutes before hitting develop the rotational activation needed for peak swing power. Heavy medicine ball throw sessions (full sets at maximum effort) should not be performed on game day as they create sufficient fatigue to reduce performance.
Should youth baseball players use medicine balls?
Yes, with appropriate weight selection and coaching supervision. Youth athletes (under 14) should use lighter balls (1 to 2 kilograms) with a focus on movement pattern quality rather than maximum power output. The rotational patterns trained by medicine ball throws are exactly the patterns that develop the mechanical foundation for long-term athletic development in baseball. The overhead slam and heavy rotational throws should be introduced progressively as athletes mature.