Hip abduction

Also called hip abduction machine, seated hip abduction, abductor machine.

What is a machine hip abduction?

Machine hip abduction is a seated isolation exercise in which you move both thighs apart against padded levers. It trains the hip abductors, including the gluteus medius, with other gluteal and deep hip muscles assisting.

Anatomical illustration of a man seated on a hip abduction machine with the legs together and apart, with the outer hips highlighted.

How do you perform a machine hip abduction?

Set up

  1. Sit on the machine with your back supported and place the outside of each knee against its pad.
  2. Choose a comfortable starting width, plant your feet on the rests if provided and hold the handles.

Execution

  1. Move both knees outward without bouncing or lifting away from the seat.
  2. Pause at the widest position you can reach without twisting the pelvis.
  3. Let the pads return under control until the legs reach the chosen start.

Common mistakes

  • Letting the stack pull the knees together

    An uncontrolled return removes the stable pace and can make the pads close abruptly.

  • Twisting the pelvis for extra range

    The visible movement should come from the hips while the seat and backrest support the torso.

  • Confusing abduction with adduction

    Abduction moves the thighs apart. The machine that pulls the thighs together is hip adduction and is a different exercise.

Where it fits in a session

Use it with other hip accessory work after the session's larger lower-body movements.

Keep the start width and seat position consistent when comparing load or reps.

Muscles worked

Front
Front — Schematic surface view. Some muscles are partly visible or not shown.
Back
Back — Schematic surface view. Some muscles are partly visible or not shown.

Primary

Secondary

Schematic surface view. Some muscles are partly visible or not shown.

The machine trains the hip abductors as a group. The atlas highlights gluteus medius for the primary label; deeper abductors are not separately mapped.

Variations

  • Standing cable hip abductionMoves one leg outward against a low cable while the other leg supports the body.
  • Band hip abductionUses a loop band around the thighs instead of a machine.
  • Side-lying hip abductionRaises the top leg while lying on one side.

Frequently asked questions

What muscles does the hip abduction machine work?

It trains the hip abductors, including the gluteus medius and deeper muscles that move the thigh away from the body's midline. The gluteus maximus can also assist.

Which way should your legs move for hip abduction?

Outward, away from the midline. Moving the legs inward against resistance is hip adduction.

How far should you open the hip abduction machine?

Use the widest position you can reach without twisting your pelvis or losing contact with the seat. More range is not useful if the torso supplies it.

Can you do hip abduction without a machine?

Yes. Standing cable, loop-band and side-lying versions use the same outward hip action with different support and resistance.

Sources

  1. Anatomy, Bony Pelvis and Lower Limb, Gluteus Medius Muscle. StatPearls. https://www.ncbi.nlm.nih.gov/books/NBK557509/
  2. Anatomy, Bony Pelvis and Lower Limb, Gluteus Maximus Muscle. StatPearls. https://www.ncbi.nlm.nih.gov/books/NBK538193/

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