How heavy should the kettlebell be?

Much lighter than the bell you use for a regular single-arm kettlebell press. Choose one you can press for every rep with the bell upright and your body still, and move up only once that feels easy.

Does the bottoms-up press work the rotator cuff?

It asks more of the shoulder's small stabilizers than a regular kettlebell press. In a study of 20 healthy men, the bottoms-up kettlebell overhead press drew more activity from the infraspinatus, one of the rotator cuff muscles, and from the upper trapezius than a regular kettlebell overhead press, although the differences between exercises were modest.

Will the bottoms-up press build bigger shoulders?

It works better as a control and stability exercise than as your main shoulder builder, because the bell has to be so light. For size and strength, pair it with a heavier press such as the Dumbbell Standing Shoulder Press.

What should I do if the bell starts to tip?

End the rep. Guide the bell down to the side and away from your head instead of trying to catch it, then reset your grip and wrist before the next rep.

How is it different from a regular kettlebell press?

In a regular press the bell rests on the back of your forearm, which is forgiving. Upside down it balances on the handle, so any bend in the wrist or drift of the elbow tips it, which demands a stricter pressing path and a harder grip at a much lighter weight.

Where does it fit in a workout?

Use it early in an upper-body session as a lighter warm-up for heavier presses, or later as accessory work. A few sets of low reps per side, pressed slowly, keep the focus on control.

Kettlebell Single-Arm Bottoms-Up Press

What Is the Kettlebell Single-Arm Bottoms-Up Press?

Kettlebell Single-Arm Bottoms-Up Press is a compound exercise that primarily targets the shoulders and also engages the triceps, the muscles that steady the shoulder blade, the grip and the trunk. It is an advanced-level movement: the kettlebell is held upside down by the handle with the bell pointing at the ceiling, and it tips as soon as the wrist, elbow or grip lets it drift out of line, so the weight you can press this way is far lighter than in a regular kettlebell press.

The bell only stays upright when the forearm is vertical and the handle is squeezed hard, so the press exposes a bent wrist, a flared elbow or a rushed rep straight away. That makes it a useful teaching tool for a clean, stacked pressing path rather than a lift for moving heavy weight. Coaches often use it as a lighter shoulder-control exercise before heavier presses or as accessory work later in a session, and it also appears in later-stage shoulder rehab once pressing overhead is pain-free and a clinician has cleared it.

Holding the bell upside down shifts some of the work toward the muscles that stabilize the shoulder. In a study of 28 male college baseball players pressing the same 11.3 kg load, the bottoms-up kettlebell press drew more serratus anterior activity than both a regular kettlebell press and a dumbbell press, while the dumbbell press drew more activity from the side of the shoulder than the bottoms-up version. The grip works throughout the set, since a hand that relaxes lets the bell fall, and pressing one arm overhead while standing asks the trunk to resist leaning away from the load.

The exercise suits lifters who already press a kettlebell overhead with good control and want to sharpen shoulder stability, wrist alignment and grip. Build up first with the Kettlebell Single-Arm Military Press, where the bell rests on the back of the forearm and is far more forgiving. If a standing overhead press bothers your shoulder, an angled option such as the Landmine Kneeling Single-Arm Shoulder Press is easier on the joint.

Muscles Worked

MuscleActivation

Deltoid: Primary
Triceps Brachii (Lateral Head): High
Flexor Carpi Radialis: Medium
Infraspinatus: Medium
Serratus Anterior: Medium
Triceps Brachii (Long Head): Medium
Triceps Brachii (Medial Head): Medium
Upper Trapezius: Medium
External Oblique: Low
Pectoralis Major: Low

Instructions

Stand tall with your feet about hip-width apart.
Grip the kettlebell handle firmly in one hand and use your free hand to help turn the bell upside down, so the bell points at the ceiling and the handle sits deep in your palm.
Set the start position: the bell is in front of your shoulder at about head height, your forearm is vertical, your wrist is straight and your elbow points down, slightly in front of your body.
Place your free hand on your hip.
Squeeze the handle hard and brace your core.
Press the kettlebell straight up, keeping your wrist stacked over your elbow and the bell upright the whole way.
Finish with your arm straight, the bell directly over your shoulder and your upper arm beside your ear, without leaning away from the bell or arching your lower back.
Lower the bell slowly along the same path to the start position, keeping it upright.
If the bell starts to tip, stop the rep and guide it down to the side, away from your head.
Repeat for the planned reps, then switch sides.

Common Mistakes

Using too heavy a bell
A bell you cannot keep upright forces the wrist, elbow and lower back out of position to save each rep.
Bending the wrist
Letting the wrist tilt back or to the side lets the bell tip and strains the wrist.
Flaring the elbow
Letting the elbow drift out from under the wrist throws the bell off balance and loads the shoulder in a poor position.
Leaning or arching to finish
Leaning away from the bell or arching the lower back to get the arm overhead shifts stress onto the lower back and the front of the shoulder.
Loosening the grip
Relaxing the hand at any point in the rep lets the bell wobble and fall.
Rushing the rep
Pressing or lowering quickly makes the bell harder to balance and skips the control the exercise is meant to train.

Injuries

Kettlebell Single-Arm Bottoms-Up Press is a medium risk exercise when performed with proper technique. The bell is light, but it sits overhead and upside down, so the main risks are the bell tipping toward your head or arm when balance is lost, the wrist bending back when the grip gives out, and irritation at the front or top of the shoulder when the lower back arches or the elbow flares out to force a rep up.

Start with a bell much lighter than you use for a regular single-arm press, move slowly, and press in an open space with nothing beneath you that a dropped bell could hit. Keep your forearm vertical and your wrist straight under the handle, and end any rep where the bell starts to tip rather than fighting to save it.

If you cannot keep the bell upright, practice holding it bottoms-up at shoulder height before pressing, or go back to the Kettlebell Single-Arm Military Press. Pressing from a half-kneeling position also makes it harder to arch the lower back. Progress with a slightly heavier bell or a slower lowering phase once every rep is steady. Stop the set if you feel sharp or pinching pain in the shoulder, pain in the wrist or elbow, or numbness or tingling down the arm.

Overview

Primary Focus: Shoulders
Equipment: Kettlebell
Modality: Strength
Difficulty: Advanced

Alternative Exercises

Frequently Asked Questions

Q: How heavy should the kettlebell be?: Much lighter than the bell you use for a regular single-arm kettlebell press. Choose one you can press for every rep with the bell upright and your body still, and move up only once that feels easy.
Q: Does the bottoms-up press work the rotator cuff?: It asks more of the shoulder's small stabilizers than a regular kettlebell press. In a study of 20 healthy men, the bottoms-up kettlebell overhead press drew more activity from the infraspinatus, one of the rotator cuff muscles, and from the upper trapezius than a regular kettlebell overhead press, although the differences between exercises were modest.
Q: Will the bottoms-up press build bigger shoulders?: It works better as a control and stability exercise than as your main shoulder builder, because the bell has to be so light. For size and strength, pair it with a heavier press such as the Dumbbell Standing Shoulder Press.
Q: What should I do if the bell starts to tip?: End the rep. Guide the bell down to the side and away from your head instead of trying to catch it, then reset your grip and wrist before the next rep.
Q: How is it different from a regular kettlebell press?: In a regular press the bell rests on the back of your forearm, which is forgiving. Upside down it balances on the handle, so any bend in the wrist or drift of the elbow tips it, which demands a stricter pressing path and a harder grip at a much lighter weight.
Q: Where does it fit in a workout?: Use it early in an upper-body session as a lighter warm-up for heavier presses, or later as accessory work. A few sets of low reps per side, pressed slowly, keep the focus on control.