Is the BOSU Push-Up harder with the dome side up or the flat side up?

Flat side up is harder. With the hands on the dome, the flat base stays on the floor and only the surface under the hands gives a little, while the BOSU Push-Up (Flat Side Up) puts the dome on the floor so the whole platform can rock and tilt.

Is a BOSU Push-Up better than a regular push-up?

Not for building strength. The dome adds a balance and control challenge, but it does not add load, and unstable surfaces generally reduce the force you can produce, so use it alongside floor push-ups and presses rather than instead of them.

Can beginners do BOSU Push-Ups?

Yes, once they can do several clean push-ups on the floor. If that is not there yet, do the movement on the knees with the hands on the dome, or build up with the Kneeling Push-Up and Incline Push-Up first.

Where should my hands go on the dome?

Place them on the sides of the dome, about shoulder width apart and the same distance from the top, with the fingers spread. The chest should come down just over the top of the dome at the bottom of each rep.

How many reps and sets should I do?

Stop each set while every rep still has a straight body line and full depth, which for most people means 2 to 4 sets of 6 to 15 reps. Adding reps with sloppy form trains the balance correction badly and builds no extra strength.

BOSU Push-Up

What Is the BOSU Push-Up?

BOSU Push-Up is a compound exercise that primarily targets the chest and also engages the triceps, front shoulders and core. It is a beginner-level movement, though it assumes you can already perform a solid set of standard push-ups before adding the dome.

The exercise is a regular push-up with both hands on the dome of a BOSU balance trainer while the flat side rests on the floor. The rounded surface gives slightly under the hands and never feels quite level, so the shoulders, arms and trunk have to keep making small corrections to hold the body steady. It is used as a gentle way to add a balance and control element to pressing, as a warm-up or finisher in upper-body and circuit sessions, and as a first step before less stable variations.

The chest, triceps and front deltoids do the pressing, and the abdominals and obliques hold the body in a straight plank from head to heels. The dome adds a balance demand rather than extra load. In a study of fit young men, front deltoid activity during push-ups with the hands on a dome-shaped trainer was no higher than during push-ups on the floor, so treat this as a control exercise, not a heavier version of the push-up. For building pressing strength, the stable Push-Up and loaded presses remain the better tools.

This variation suits people who already press well on the floor and want more variety or more shoulder and trunk control work. Turning the trainer over so the hands grip the flat platform, as in BOSU Push-Up (Flat Side Up), makes the base rock and tilt and is clearly harder. If a full push-up on the floor is still a struggle, build up with the Incline Push-Up or Kneeling Push-Up first.

Muscles Worked

MuscleActivation

Pectoralis Major: Primary
Deltoid: High
Triceps Brachii (Lateral Head): High
Triceps Brachii (Medial Head): High
External Oblique: Medium
Rectus Abdominis: Medium
Serratus Anterior: Medium
Triceps Brachii (Long Head): Medium
Rectus Femoris: Low
Upper Trapezius: Low

Instructions

Place the BOSU on a non-slip floor with the flat side down and the dome facing up.
Kneel behind it and place your hands on the sides of the dome, about shoulder width apart, with the fingers spread.
Step your feet back one at a time to a high plank on your toes, feet about hip width apart and arms straight with the wrists under the shoulders.
Brace your abs and glutes so your body forms a straight line from head to heels.
Bend your elbows and lower your chest toward the top of the dome, keeping the elbows angled back at about 45 degrees from your body.
Stop when your chest is just above the dome, keeping the dome level and the hips in line.
Press through the whole palm to straighten your arms and return to the high plank.
Repeat for the desired reps, then lower your knees to the floor before taking your hands off the dome.

Common Mistakes

Sagging hips
Letting the hips drop toward the floor shifts strain onto the lower back, so brace the abs and glutes to keep a straight line from head to heels.
Hips piked up
Raising the hips to make the rep easier shortens the range of motion and takes work away from the chest and core.
Uneven hand placement
Placing the hands off center makes the dome tip toward one side, so set both hands the same distance from the top of the dome.
Elbows flaring out
Pointing the elbows straight out to the sides loads the front of the shoulders, so keep them angled back at about 45 degrees from the body.
Cutting the depth short
Stopping halfway down to stay balanced turns the set into partial reps, so lower until the chest nearly touches the dome or regress to an easier version.
Rushing the reps
Dropping fast onto the dome makes it harder to control and puts the wrists at risk, so lower slowly and press up smoothly.

Injuries

BOSU Push-Up is a low risk exercise when performed with proper technique. The load is only body weight and the dome sits on a wide, flat base, so the main risk is losing balance or form rather than overloading a joint.

The wrists take the most stress, because the curved surface bends them back further than a flat floor and can tip the hands inward or outward. Spread the fingers, press through the whole palm and keep each wrist stacked under its shoulder. The front of the shoulders can get irritated when the elbows flare straight out to the sides, and the lower back takes strain when the hips sag toward the floor. Keep the elbows angled back at roughly 45 degrees from the body and brace the trunk as in a plank. Place the trainer on a dry, non-slip floor and center the hands so the dome does not tip toward one side.

If you cannot keep a straight body line or the dome keeps tilting, regress to the Push-Up on the floor, the Incline Push-Up or the Kneeling Push-Up, or do the same movement on your knees with your hands on the dome. Once it feels steady for controlled sets, progress to BOSU Push-Up (Flat Side Up). Stop if you feel sharp or pinching pain in the wrist, elbow or shoulder, or if the wrists ache after the set rather than the muscles tiring.

Overview

Primary Focus: Chest
Equipment: Balance trainer and body weight
Modality: Strength
Difficulty: Beginner

Alternative Exercises

Frequently Asked Questions

Q: Is the BOSU Push-Up harder with the dome side up or the flat side up?: Flat side up is harder. With the hands on the dome, the flat base stays on the floor and only the surface under the hands gives a little, while the BOSU Push-Up (Flat Side Up) puts the dome on the floor so the whole platform can rock and tilt.
Q: Is a BOSU Push-Up better than a regular push-up?: Not for building strength. The dome adds a balance and control challenge, but it does not add load, and unstable surfaces generally reduce the force you can produce, so use it alongside floor push-ups and presses rather than instead of them.
Q: Can beginners do BOSU Push-Ups?: Yes, once they can do several clean push-ups on the floor. If that is not there yet, do the movement on the knees with the hands on the dome, or build up with the Kneeling Push-Up and Incline Push-Up first.
Q: Where should my hands go on the dome?: Place them on the sides of the dome, about shoulder width apart and the same distance from the top, with the fingers spread. The chest should come down just over the top of the dome at the bottom of each rep.
Q: How many reps and sets should I do?: Stop each set while every rep still has a straight body line and full depth, which for most people means 2 to 4 sets of 6 to 15 reps. Adding reps with sloppy form trains the balance correction badly and builds no extra strength.