Medicine Ball Chest Pass: A Complete Guide
Also called MB Chest Throw, Chest Pass Slam
Quick Intro
Medicine Ball Chest Pass, also called the MB Chest Throw, is an explosive two-handed throw performed by loading a medicine ball at the chest and explosively extending both arms to throw it against a wall or to a partner, then catching the return and repeating. The throw mirrors pushing and passing actions outside the gym, which makes it functional training as well. This is the simplest of the medicine-ball throws, a straight-line horizontal push along a single plane.
Equipment Needed
Medicine Ball Chest Pass needs one Medicine Ball. A wall to throw against or a partner to exchange with is also required.
Why Medicine Ball Chest Pass Matters
This exercise trains the stretch-shortening cycle: the brief loading moment, pulling the ball to the chest and letting the arms and chest flex slightly under its weight, stores elastic energy in the chest (pectoralis major) and the front of the shoulders (deltoid, anterior) that gets released the instant the arms drive forward. The back of the upper arms (triceps brachii) finishes the extension as the ball leaves the hands. Because the ball has to be caught and reloaded every rep, the same muscles that produce the throw also have to absorb it, which is a training demand a one-way throw into open space wouldn’t have. Power is the main demand, since the purpose of the exercise is producing maximal force in minimal time, and pressing strength sits underneath it.
When to Do It
Because the whole point of this exercise is a fast, high-quality release, it belongs early in a session, after a general warm-up and before longer strength or cardio work, while the arms and shoulders are still fresh. It also works well as a brief primer immediately before an upper-body pressing session, since a few explosive reps can prime the same chest and shoulder muscles about to be loaded more slowly afterward.
Anyone with a current shoulder, elbow or wrist injury should avoid this exercise until it heals, since every rep asks those joints to both produce and absorb force. A heavier ball than the shoulders and wrists can control safely is a common way people get hurt here, so starting lighter than feels necessary is the safer call for anyone new to throwing a weighted ball.
Getting Ready
A few minutes of general movement to raise body temperature comes first, followed by some arm circles and a handful of slow, sub-maximal chest passes to rehearse the catch-and-throw pattern before adding speed. Confirming the wall or partner distance allows a full arm extension on the throw and a controlled catch on the return matters more here than in most exercises, since a distance that’s too short or too long changes the whole movement.
Step-by-Step Instructions
Setup. Stand facing a wall or a partner at a distance that allows a full-power throw and a controlled catch, feet roughly shoulder-width apart, holding the ball at the chest with both hands.
Load. Let the elbows bend slightly and the ball settle briefly against the chest, loading the chest and shoulders for the throw to come.
Explosive extension. Drive both arms forward as one unit, extending fully through the elbows to release the ball with maximal speed, keeping the feet grounded throughout.
Catch and absorb. Receive the ball’s return (off the wall or from the partner) by bringing it back to the chest with bent elbows, absorbing the impact through the arms and shoulders.
Reset. Settle back into the starting position before loading the next throw, treating each rep as its own discrete effort.
How Many, How Often
Medicine Ball Chest Pass is dosed by a moderate number of fresh, fast reps, since the value of each rep depends on how explosively it’s thrown.
| Level | Where you’re at | What to do |
|---|---|---|
| Beginner | New to throwing a weighted ball | 2 to 3 sets of 8 reps with a light ball, focused on a clean catch and a controlled reload above all else. |
| Intermediate | Catches are consistent and controlled | 3 to 4 sets of 10 to 12 reps, resting 45 to 60 seconds between sets, throwing for full speed each rep. |
| Advanced | Throw speed holds steady through every set | 4 sets of 12 to 15 reps at maximal effort, or move to a heavier ball or a harder variation below once the current ball stops being a challenge. |
A set that’s ended early because the throws have slowed down is a better outcome than one pushed to a fixed number after the speed has already dropped.
Modifications and Variations
Medicine Ball Chest Pass has two alternatives, and both change the plane or direction the power gets produced in, with no added load involved.
Medicine Ball Soccer Throw redirects the same explosive extension overhead in a two-handed throwing pattern, trading the straight horizontal push for a full trunk-flexion release. Medicine Ball Rotational Throw takes the furthest departure of the two, moving the entire throw into the transverse plane so the power comes from a hip-driven rotation, and this exercise itself serves as the easier entry point into that rotational pattern.
Progression path: Medicine Ball Chest Pass as the straightforward entry point, then Medicine Ball Soccer Throw for an overhead throwing pattern or Medicine Ball Rotational Throw for a more demanding rotational version.
Common Mistakes to Avoid
Throwing from the arms alone instead of the whole body. Isolating the push to just the shoulders and triceps caps how much force the throw can produce and puts extra strain on the elbows. A small, natural extension through the torso as the arms fire keeps the effort spread across more than just the arms.
Catching with locked elbows. Receiving the return with straight arms sends the impact straight into the elbow joints instead of the chest and shoulders absorbing it. Bending the elbows the instant the ball makes contact is what protects the joints on every catch.
Standing too close to the wall or partner. A distance too short to let the arms fully extend on the throw turns this into a short, half-powered push. Standing back far enough for a complete extension is worth checking before the first working set.
After Your Set
The chest and front shoulders do repeated work catching and throwing through a set of these. Lying on the back with a rolled towel along the spine and the arms falling open releases that tension across the chest afterward. A few slow shoulder rolls through their full range settle the joints that absorbed every catch.
Going Deeper
This exercise sits early in a session or serves as a short standalone power block, since it depends on fresh shoulders and a fast, uncompromised release to do its job. It also fits well paired with a lower-body jump exercise in the same session, covering upper- and lower-body explosive output without either one interfering with the other’s recovery.
Progress here tends to stall when throw speed quietly plateaus even as the rep count climbs. That’s usually a sign the loading-to-release transition has gotten slower without being noticed, and it responds better to fewer, faster reps with full recovery than to simply adding more volume at the same speed.
Someone new to this exercise typically needs a session or two purely on the catch, at a light weight and a close distance, before chasing full throw speed becomes the safe next step.
How to Know You’re Improving
- The catch is quiet and controlled, with no jarring impact on the chest
- Throw speed holds steady from the first rep to the last rep of a set
- The load-to-release transition feels like one fluid motion
- A heavier ball can be thrown with the same explosive speed as the lighter one used when starting out
Noticing throw speed drop off and stopping the set there, rather than finishing a fixed rep count regardless, is the better sign this exercise is being trained for what it’s meant to build.
Muscles Worked
- Pectoralis Major (the chest muscle, driving the ball forward off the chest)
- Triceps Brachii (the back of the upper arm, extending the elbows to finish the throw)
- Anterior Deltoid (the front of the shoulder cap, carrying the arms through the push and into the follow-through)
FAQ
Do I need a wall, or does a partner work just as well? Either works. A wall gives a more consistent, predictable rebound, while a partner adds a small amount of variability to the catch.
What size medicine ball should I use? A weight light enough that the throw stays fast and the catch stays controlled, not the heaviest ball available. If throw speed or catch control starts to break down, that’s the signal to drop to a lighter ball right away.
Is this the same as just throwing a ball back and forth? The deliberate load-catch-reset structure and the focus on a fast, full-extension release are what separate this from casual catch. A casual toss doesn’t usually demand a full-power extension on every single rep the way this exercise does.
How is this different from the Medicine Ball Overhead Slam? Both use the same medicine ball and the same explosive-release principle, but this exercise stays in a straight horizontal line at chest height, while the Medicine Ball Overhead Slam raises the ball overhead first and releases it downward into the ground, involving a much larger range of motion through the trunk.
This is part of the medicine-ball throwing family, alongside Medicine Ball Overhead Slam, Medicine Ball Rotational Throw, Medicine Ball Soccer Throw and Medicine Ball Scoop Toss.