Exercise guide · evidence-graded

Kettlebell Single-Arm Swing

The single-arm kettlebell swing is a fast hip hinge that swings one kettlebell from between your legs to chest height using a hip snap, holding the bell in one hand. It trains glute and hamstring power and conditioning, and the one-handed hold adds work for your trunk to keep the bell from twisting you.

Also called: One Arm KB Swing, Single Arm Swing, One-Arm Swing, One-Handed Kettlebell Swing · Equipment: kettlebell · Pattern: hinge

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How to do it

Step by step

  1. Set the kettlebell on the floor about a foot in front of you. Stand with your feet a little wider than hip-width.
  2. Hinge at the hips with a flat back and grip the handle with one hand. Tip the bell back towards you so the handle points at you.
  3. Brace your trunk, keep your shoulder pulled down and hike the bell back high between your thighs.
  4. Snap your hips forward and squeeze your glutes to stand tall. Let the bell float up to about chest height on a straight arm.
  5. Keep your hips and shoulders square to the front, with your free arm out to the side or by your body.
  6. As the bell falls, stay tall until your forearm meets your thigh, then hinge and let the bell swing back between your legs.
  7. For the last rep, let the bell swing back once more, then set it on the floor in front of you. Swap hands and repeat.
Coaching cues
  • Hike the bell back high between your thighs
  • Snap your hips, squeeze your glutes
  • Hips and shoulders square to the front
  • Shoulder down, arm long
  • Float the bell to chest height
  • Stand tall, then hinge

In VALDA, these cues are one tap away on the exercise while you train.

Muscles worked

What it trains

MuscleRoleEvidence
Gluteus maximusPrime moverC
Hamstrings: biceps femoris (long head)Prime moverB
Erector spinaeStabiliserD
Obliques (internal/external)StabiliserD
Rectus abdominisStabiliserD
Forearm flexorsStabiliserC
Latissimus dorsiDynamic stabiliserC

Evidence grades: A = strong research base · B = good · C = limited · D = coaching consensus.

Common faults

What goes wrong, and the fix

Twisting with the bell

Fix: Brace hard and keep your hips and shoulders square to the front all the way.

Squatting the swing

Fix: Push your hips back with shins near vertical, then snap your hips forward.

Lifting with the arm

Fix: Let the hip snap float the bell; the arm only holds on.

Rounding the back at the bottom

Fix: Hike the bell high between your thighs with a flat back.

Shoulder pulled forward at the bottom

Fix: Keep your shoulder pulled down and back as the bell swings through.

Leaning back at the top

Fix: Finish standing tall with glutes squeezed and ribs down.

Programming

What the research says

Power · first choiceGeneral fitness · first choiceSport performance · first choiceEndurance · first choiceFat loss & conditioning · first choiceRehab & prehab

  • Power — A study of two-handed swings found their peak power exceeded the back squat and was comparable with the jump squat. The one-handed swing has not been measured separately.
  • Strength and jumping — In a six-week trial, twice-weekly two-handed swings improved half-squat strength by about 10% and jump height by about 20%, similar to jump-squat training.
  • Conditioning — Twelve minutes of continuous two-handed swings with a 16 kg bell averaged about 65% of maximal oxygen uptake, while heart rate ran much higher, at about 87% of maximum.
  • Muscle activity — An EMG study found one- and two-handed swings both produced high glute and hamstring activity. Trunk muscles were not measured, so the extra trunk work of the one-handed swing is based on mechanics.
  • Sides and load — There is no research on one-handed swing loads. A common approach is a lighter bell than for two hands and the same reps on each side.
Alternatives · VALDA FLEX

Swap it mid-workout

With VALDA Pro, FLEX offers alternatives like these when you swap an exercise mid-workout.

Log the kettlebell single-arm swing in VALDA, with these cues one tap away while you train and your history for it in one place.

General information about exercise technique, not medical advice. If you have an injury or a health condition, your healthcare provider is the right person to ask.