Medicine Ball Slam
abs
What moves the load, and what it costs
4.3MET
Abs is the prime mover, with the lats, front deltoid, glutes assisting. A rare exercise where maximum effort is safe, because the movement ends when the ball hits the floor.
Cue: Use a non-bouncing slam ball and throw it down as hard as you can, hinging as it lands.
ਸਰੋਤ·2024 Adult Compendium of Physical Activities·FILED UNDER CIRCUIT TRAINING·ਸਮੀਖਿਆ ਜੁਲਾਈ 2026
SHARED AXIS · SEVEN VALUES FROM ONE TABLE · HIGHLIGHTED ROW IS THIS MOVEMENT
The compendium files medicine ball slam under a category, not a lift. Read the ladder as position, not precision: this is heavier work than sitting quietly by a factor of 4.3, and middling for conditioning work.
Turning that MET value into a real energy cost
- Map the movement to a published category. The compendium measures categories of conditioning work, never individual lifts, so medicine ball slam is filed under Circuit training, moderate effort.
- Take the category's MET value — 4.3. One MET is the cost of sitting quietly, so this is 4.3 times resting metabolism.
- Multiply by 3.5 to get millilitres of oxygen per kilogram per minute, the unit the MET is actually defined in.
- Multiply by your bodyweight in kilograms and divide by 200. The result is kilocalories per minute of work.
- Count working minutes only. Under load, not under the roof — a set of eight is about 25 seconds of the hour you were there.
kcal/min = MET × 3.5 × body mass (kg) ÷ 200 Medicine Ball Slam: 4.3 × 3.5 × 70 ÷ 200 = 5.27 kcal/min
ਸਰੋਤ·ACSM metabolic equation + 2024 Adult Compendium of Physical Activities·REFERENCE BODY MASS 70 KG·ਸਮੀਖਿਆ ਜੁਲਾਈ 2026
What is actually doing the work
| Muscle | Role | What it does here |
|---|---|---|
| Absਰੈਕਟਸ ਐਬਡੋਮਿਨਿਸ | Prime mover | ਧੜ ਨੂੰ ਅੱਗੇ ਝੁਕਾਉਂਦਾ ਹੈ ਅਤੇ, ਇਸ ਤੋਂ ਵੱਧ ਕੰਮ ਦੀ ਗੱਲ, ਇਸਨੂੰ ਪਿੱਛੇ ਵੱਲ ਖਿੱਚੇ ਜਾਣ ਦਾ ਵਿਰੋਧ ਕਰਦਾ ਹੈ। ਕਰੰਚ ਅਤੇ ਪਲੈਂਕ ਦੋਵੇਂ ਇਸ ਉੱਤੇ ਭਾਰ ਪਾਉਂਦੇ ਹਨ — ਵੱਖ-ਵੱਖ ਢੰਗ ਨਾਲ। |
| LatsLatissimus dorsi | Synergist / stabiliser | Pulls the upper arm down and back towards the ribs (shoulder extension and adduction) and rotates it inwards. It is the prime mover in every pull-up and pulldown. |
| Front deltoidAnterior deltoid | Synergist / stabiliser | Raises the arm to the front (shoulder flexion) and assists horizontal adduction. Prime mover in overhead pressing, heavy synergist in every bench press. |
| Glutesਗਲੂਟੀਅਸ ਮੈਕਸਿਮਸ, ਮੀਡੀਅਸ ਅਤੇ ਮਿਨਿਮਸ | Synergist / stabiliser | ਕੁੱਲ੍ਹੇ ਨੂੰ ਖੋਲ੍ਹਦਾ ਹੈ (ਮੈਕਸਿਮਸ), ਅਤੇ ਇਸਨੂੰ ਬਾਹਰ ਵੱਲ ਲਿਜਾਂਦਾ ਤੇ ਸਥਿਰ ਰੱਖਦਾ ਹੈ (ਮੀਡੀਅਸ ਅਤੇ ਮਿਨਿਮਸ)। ਸਰੀਰ ਦਾ ਸਭ ਤੋਂ ਤਾਕਤਵਰ ਇਕੱਲਾ ਪੱਠਾ ਸਮੂਹ। |
The prime mover produces the movement against the resistance; synergists assist and stabilisers hold a joint still without moving it. An exercise trains the whole muscle it loads — there is no way to work only part of a muscle, and no exercise removes fat from the area around it.
Set up, then earn the rep
Medicine ball. Every rep should look like the first one. The moment it stops looking like the first one, the set is finished.
PATTERN · ROTATION
- Stand with the feet shoulder width holding the ball.
- Reach overhead with the ribs kept down, not arched back.
- Use a non-bouncing slam ball and throw it down as hard as you can, hinging as it lands.
- Throw the ball down into the floor as hard as you can, hinging at the hips as you do.
- Catch or pick it up and reset.
- Every rep is maximum effort — the moment they slow down, the set is finished.
Where this one breaks down
Not theory. These are the faults you correct on a gym floor, and the correction that actually works.
Arching the lower back overhead.
Reach with the arms and shoulders, not the spine.
Half-effort throws.
Power work has no value at 60 per cent. Fewer, harder reps.
Using a bouncy ball.
A slam ball is designed not to rebound. A bouncing medicine ball to the face is a real risk.
Regress it, or progress it
Regress — earn it first
Nothing on this site regresses it further: this is already near the entry point of its pattern. Take load off, shorten the range, or slow the tempo — in that order.
Progress — the next demand
This sits at the top of its progression here. Add load, add range, slow the tempo or go single-limb before you go looking for a new exercise.
Prescription: load, reps, rest
Read off the goal, then hold the technique constant as the load climbs. Derived from the movement's mechanics, not invented for this page: a explosive movement is destroyed by fatigue, so reps stay low and rest stays long.
| Goal | Sets | Reps | Rest | Notes |
|---|---|---|---|---|
| Power | 4–6 | 2–5 | 2–3 min | Every rep is fast or the set is over. Fatigue kills the quality this trains. |
| Athleticism | 3–5 | 3–6 | 90–120 sec | Quality of landing matters as much as height or distance. |
| Conditioning | 4–8 | 8–12 | 45–60 sec | Used this way it is cardio, not power work — pick one intent per session. |
| Beginner | 2–3 | 3–5 | 2 ਮਿੰਟ | Learn to land softly before you try to go higher or heavier. |
Time under load, in kilocalories
Read these as minutes of work, not minutes in the building. A set of eight takes about twenty-five seconds; the rest of the hour is rest, chalk and queueing.
Mapped category: Circuit training, moderate effort — 4.3 MET. That is the published category this movement is filed under, not a measurement of this specific lift.
Worked at 4.3 MET × 3.5 × 70 kg ÷ 200 = 5.27 kcal per working minute for a 70 kg adult. Scale it by your own bodyweight; the equation is linear. The full activity dataset lives at BurnLab.
ਸਰੋਤ·2024 Adult Compendium of Physical Activities·CATEGORY VALUE, NOT A PER-EXERCISE MEASUREMENT·ਸਮੀਖਿਆ ਜੁਲਾਈ 2026
If the rack is taken
Substitutes train the same prime mover through the same pattern with different kit. Computed from the muscle and pattern data on this card, not hand-picked to fill a grid.
Nothing here trains the same prime mover through the same pattern. Swap the pattern rather than the muscle, and accept the session will look different.
Nothing at all to hand: Plank is the closest match — same prime mover, same pattern, no kit.
Where it sits in a week
One movement is not a programme. The twelve templates put these in order, including 6 that need no gym at all.
The questions that come up on the floor
What muscles does the medicine ball slam work?
Medicine Ball Slam is an explosive movement in which the abs is the prime mover, assisted by the lats, front deltoid, glutes. Bends the trunk forward and, more usefully, resists it being extended backwards. Both a crunch and a plank load it — differently.
Is the medicine ball slam good for beginners?
ਹਾਂ। ਇਸ ਸਾਈਟ ਉੱਤੇ ਤਕਨੀਕੀ ਔਖਿਆਈ ਵਿੱਚ ਇਸਨੂੰ 5 ਵਿੱਚੋਂ 2 ਦਰਜਾ ਮਿਲਿਆ ਹੈ — ਇੱਕ ਜਾਂ ਦੋ ਸੈਸ਼ਨਾਂ ਵਿੱਚ ਸਿੱਖਣਯੋਗ; ਗ਼ਲਤ ਹੋ ਜਾਵੇ ਤਾਂ ਸੱਟ ਦਾ ਖ਼ਤਰਾ ਘੱਟ। ਸਭ ਤੋਂ ਹਲਕੇ ਸਮਝਦਾਰ ਭਾਰ ਅਤੇ 3–5 ਦੇ ਦੋ ਜਾਂ ਤਿੰਨ ਸੈੱਟਾਂ ਨਾਲ ਸ਼ੁਰੂ ਕਰੋ।
What can I do instead of the medicine ball slam at home?
The closest no-equipment substitute is the plank, which trains the same prime mover through the same movement pattern. It will not load you as heavily, so use higher reps and slower tempo to make up the difference.
How many sets and reps of the medicine ball slam should I do?
For muscle size, 3–5 sets of 3–6 with 90–120 sec rest. For strength, 4–6 sets of 2–5 with 2–3 min rest. In your first month, 2–3 sets of 3–5, stopping well short of failure. Total weekly hard sets per muscle group matters more than the exact rep number in any of these ranges.
Does the medicine ball slam burn fat from the abs?
No. No exercise removes fat from the area it trains — spot reduction has been tested repeatedly and does not happen. Training the abs builds the muscle underneath; where body fat is lost from is decided by an overall calorie deficit and by your genetics, not by which exercise you chose.
Muscle roles follow standard kinesiology references and are described by joint action rather than by gym convention — see how this site is built. Energy figures are derived from the 2024 Adult Compendium of Physical Activities. Every reference is named and dated on the sources page. General information only — not medical or coaching advice. Load, form and progression should be adjusted to your own experience and any injury history. When in doubt, get coached in person.
ਸਰੋਤ·Published exercise references·MUSCLE ROLES ASSIGNED BY JOINT ACTION·ਸਮੀਖਿਆ ਜੁਲਾਈ 2026
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