This guide walks through pilates ball arm exercises small enough to do at home, on a mat, or in a clinic warm-up. It is written for home Pilates students, group instructors and rehab clients who want toned, controlled arms without heavy weights. You will get eight exercises with clear sets, reps and progressions, plus the reasoning behind why a soft 18cm ball changes how your shoulders and arms work.
TL;DR
- A small soft ball (around 18cm) adds gentle resistance and instability, so your arms and shoulder stabilisers work harder than they do empty-handed.
- Most arm work with the ball is isometric squeezing or controlled pressing, which is joint-friendly and good for early rehab and beginners.
- Start with 2 to 3 sets of 8 to 12 reps (or 20 to 30 second holds), 2 to 3 times a week, in line with NHS muscle-strengthening guidance.
- Progress by slowing the tempo, adding holds, or reducing your base of support, not by grabbing a bigger ball.
- The eight-move routine below covers chest, shoulders, biceps, triceps and the deep stabilisers, and finishes with a mobility cool-down.
Context: why a small Pilates ball for arm work
Big stability balls get the attention, but the small soft ball is the quiet workhorse of arm and upper-body training. It is light, deflatable, and forgiving on the wrists and elbows, which makes it ideal for people who find dumbbells uncomfortable or who are easing back into training after an injury.
The point of the ball is not load, it is feedback. When you squeeze or press into a soft ball, you have to recruit the muscle continuously to keep the pressure even. There is no momentum to hide behind. The American Council on Exercise notes that a Pilates ball "promotes core stabilisation by adding resistance, which forces exercisers to activate" deeper muscles, and the same logic applies to the shoulder girdle during arm work (see the ACE expert article on Pilates ball exercises).
This matters for arms specifically. The muscles around your shoulder blade and rotator cuff are stabilisers first. Train them with slow, controlled ball pressure and you build the kind of endurance and control that translates to better posture and fewer niggles, rather than just bigger numbers.
What the small ball does for your arms and shoulders
Holding and squeezing a soft ball activates the muscles of the arms, chest and shoulders together, because you cannot isolate a squeeze to one joint. Press the ball between your palms and your pectorals, anterior deltoids, triceps and forearm muscles all fire to keep it stable.
Two principles are worth understanding before you start:
- Instability raises activation. A slightly unstable surface increases muscle recruitment when you keep control of it. ACE has shown that working over a small ball can increase abdominal activation; the upper-body version is the constant micro-correction your shoulders make to keep the ball still.
- Isometric holds build control. Squeezing and holding (rather than swinging through a rep) keeps tension on the muscle for longer and is gentle on the joint. That is why ball squeezes feature so often in early shoulder and elbow rehab.
If you want the wider strength picture, our guide to resistance band and loop exercises pairs nicely with ball work once you are ready to add pulling movements the ball cannot replicate.
Before you start: ball size, inflation and safety
For arm work, a soft ball in the 18 to 25cm range is ideal. The 18cm size sits comfortably between the palms and is easy to tuck behind the shoulder blades for the mobility moves. Inflate it so it gives a little under pressure but does not collapse, you want roughly 80 percent firm. A fully rigid ball loses the gentle feedback that makes these exercises work.
Keep the wrists in a neutral line with the forearm during pressing moves, and stop any exercise that produces sharp joint pain rather than muscle effort. If you are training around a current injury, clear the routine with your physiotherapist first.
The routine: 8 pilates ball arm exercises small enough for any mat (with sets and reps)
Run these in order as a single session, or pick three or four for a quick add-on after cardio. Move slowly. Two seconds to squeeze or press, hold, two seconds to release. Quality of control beats speed every time.
1. Palm press (chest and front shoulder)
Hold the ball at chest height with both palms flat against it, elbows out to the sides. Press your palms into the ball and hold the squeeze, keeping your shoulders down away from your ears. This is your foundation move, it teaches the constant even pressure the whole routine relies on.
- Sets and reps: 3 sets of 10 to 12 presses, holding each for 3 seconds.
- Progression: hold a single squeeze for 30 to 45 seconds, or pulse 20 small presses without fully releasing.
2. Overhead ball squeeze (shoulders and triceps)
From the palm press, keep squeezing the ball and slowly raise it overhead, then lower it back to chest height. The squeeze never stops, so your triceps and shoulders work through the whole range. Keep your ribs down and avoid arching your lower back as the ball goes up.
- Sets and reps: 3 sets of 8 to 10 slow raises.
- Progression: pause for 2 seconds at the top of each rep.
3. Ball biceps curl hold (biceps and forearms)
Hold the ball in front of you with both hands, elbows tucked into your sides. Squeeze the ball and curl it up towards your shoulders, then lower under control. Because the ball is light, the work comes from the squeeze and the slow tempo, not the weight.
- Sets and reps: 3 sets of 12 curls.
- Progression: stop halfway down and hold for 3 seconds before finishing the rep.
4. Triceps press-back (back of the arm)
Stand tall, hold the ball behind your hips with both hands, palms facing back. Squeeze the ball and press your hands gently away from your body, straightening the elbows, then return. You should feel the back of the upper arm switch on.
- Sets and reps: 3 sets of 10 to 12 presses.
- Progression: add a 3-second hold at full extension.
5. Single-arm ball press into wall (shoulder stability)
Stand an arm's length from a wall. Place the ball against the wall at shoulder height and press into it with one hand, keeping the shoulder blade gently set down and back. Hold, then switch sides. This trains the rotator cuff and serratus muscles that keep the shoulder healthy.
- Sets and reps: 2 to 3 sets of 20 to 30 second holds per arm.
- Progression: draw slow, small circles with the ball while maintaining pressure.
6. Plank ball taps (arms, shoulders and core)
From a forearm or high plank, place the small ball just in front of one hand. Tap the top of the ball with the opposite hand, return, and alternate. Your supporting arm and shoulder work hard to stay stable while the core holds the line. This is where these pilates ball arm exercises small enough for a mat start to feel like a full upper-body workout.
- Sets and reps: 3 sets of 16 taps (8 each side).
- Progression: tap from a full high plank rather than forearms, or slow each tap to a 2-second reach.
7. Kneeling ball push-up (chest, shoulders, triceps)
From a kneeling press-up position, place both hands on top of the ball, wrists flat and stacked under the shoulders. Lower your chest towards the ball, then press back up. The ball forces your stabilisers to keep your hands level, so it is harder than a floor push-up despite the lighter range.
- Sets and reps: 2 to 3 sets of 6 to 10 reps.
- Progression: move to a full push-up position once you can keep the ball steady.
8. Chest-opener ball stretch (cool-down and mobility)
Lie on your back and place the ball under your upper back, just below the shoulder blades. Extend your arms out to the sides, palms up, and let your chest open over the ball. Breathe slowly and let the front of the shoulders release after all that pressing work.
- Sets and reps: hold for 60 to 90 seconds, repeat twice.
- Progression: add slow arm sweeps overhead and back to mobilise the shoulders.
The gear: one soft ball does the whole routine
Every move above uses a single soft ball, which is what makes this such an easy routine to keep up at home or pack for a class. Meglio's 18cm Pilates Ball is the size we built this routine around: soft enough to squeeze, firm enough to press into, with a non-slip surface so it stays put on a mat or against a wall.
It comes with a small straw for fine-tuning inflation, so you can dial it to that 80 percent firmness that gives the best feedback for arm work. At £7.99 it is an inexpensive way to add resistance without filling a cupboard with dumbbells, and it deflates flat for storage.
If you want to round out a home setup, the rest of the Meglio Yoga and Pilates collection covers mats and gym balls, and a foam roller is a sensible add-on for recovery, our top foam roller exercises show how to use one after a session.
How to programme it across the week
The NHS recommends muscle-strengthening activity that works all the major muscle groups on at least two days a week. This routine fits neatly into that. Two to three sessions a week, with a rest day in between, gives the arms and shoulders time to recover and adapt.
- Beginners: 2 sessions a week, exercises 1 to 5, lower rep ranges.
- Intermediate: 3 sessions a week, the full eight moves, with holds added.
- Returning from injury: start with the isometric squeezes (moves 1, 3 and 5) only, and build up under guidance from your physiotherapist.
Soreness should settle within a day or two. Sharp or lasting joint pain is a signal to back off and check your form.
FAQs
Are pilates ball arm exercises small enough to do without any other equipment?
Yes. Every exercise in this routine uses a single soft ball of around 18cm and a mat or wall. That is the appeal of pilates ball arm exercises small enough for a living room: no rack of dumbbells, no machines, and the ball deflates flat for storage. A wall is useful for the single-arm press, but nothing else is required.
What size ball is best for arm exercises?
A soft ball in the 18 to 25cm range works best for arms. The 18cm size sits comfortably between the palms for squeezes and tucks neatly behind the shoulder blades for the chest-opener. Inflate it to about 80 percent firm so it gives a little under pressure but does not collapse, that gentle resistance is the whole point.
Can a small Pilates ball actually tone your arms?
It can build muscle tone and endurance, yes, though it will not add bulk the way heavy lifting does. Squeezing and pressing a soft ball keeps constant tension on the chest, shoulders and arms, and the slow controlled tempo recruits the muscle hard. For visible change, train two to three times a week and progress the holds and tempo over time.
Are these exercises safe after a shoulder or elbow injury?
The isometric squeezes are often used in early rehab because they are gentle on the joint, but you should still clear any routine with your physiotherapist first. Start with moves 1, 3 and 5, keep the pressure moderate, and stop anything that causes sharp joint pain rather than muscle effort. Progress only when movement is pain-free.
How many reps and sets should I do?
Start with 2 to 3 sets of 8 to 12 reps, or 20 to 30 second holds for the isometric moves, two to three times a week. That sits within NHS strength-exercise guidance. Progress by slowing the tempo and adding holds rather than rushing more reps.
How do I make the exercises harder without a bigger ball?
Change the tempo and the base of support, not the ball. Slow each rep to two seconds up and two seconds down, add 3-second holds at the hardest point, pulse without fully releasing, or move from kneeling to full plank and push-up positions. These all raise the demand on your arms and shoulders while keeping the same soft 18cm ball.
Conclusion
You do not need a loaded barbell to build controlled, capable arms. A single soft ball, used slowly and with intent, trains the chest, shoulders, biceps, triceps and the deep stabilisers that keep your shoulders happy. Run the eight-move routine two to three times a week, progress through tempo and holds rather than size, and pair it with band work and a foam roller for a complete home setup. The Meglio 18cm Pilates Ball is the one piece of kit that does the whole session.
This article is intended as general guidance and is not a substitute for clinical training or professional judgement. If you are training around an injury or a health condition, consult a qualified physiotherapist or GP before starting a new routine.
