How to Do the Inch Worm

The inchworm is a walking drill where you hinge forward, walk your hands out to a plank, then walk your feet back to your hands. It stretches your hamstrings and calves while training your shoulders and abs. It suits beginners as a warm-up or mobility move.

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Muscles worked

Primary

  • Abs
  • Shoulders

Secondary

  • Hamstrings
  • Chest

How to do the Inch Worm

  1. 1

    Stand tall with your feet hip-width apart.

  2. 2

    Hinge forward and place your hands on the floor; bend your knees if needed.

  3. 3

    Walk your hands forward until you reach a plank position.

  4. 4

    Brace your abs and keep your hips level for a moment.

  5. 5

    Walk your feet toward your hands in small steps.

  6. 6

    Keep your legs as straight as comfortable.

  7. 7

    Stand up and repeat.

Form cues to remember

  • Hands walk out, hips stay level
  • Small steps with your feet
  • Brace in the plank
  • Reach long

Common mistakes

Letting your hips sag in the plank

Squeeze your glutes and brace your abs.

Bending your knees too much

Bend only as much as you need and stretch your hamstrings over time.

Taking huge steps

Use small steps with your hands and feet.

Rushing the movement

Move smoothly to feel the stretch and the shoulder work.

Sets and reps

Mobility2–3 sets of 5–8 reps as a warm-up
Conditioning3 rounds of 8–10 reps, with 30 seconds rest

Keep your wrists comfortable and your core braced to protect your lower back. Skip the plank if your wrists or shoulders hurt.

Superlift for iPhone

Track your Inch Worm and watch it go up

Superlift shows what you lifted last time, times your rest, and charts your strength week by week, so you always know what to beat. Every exercise in this library is built in, with the same demos and tutorials.

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Logging sets, reps and weight in SuperliftStrength progression chart in SuperliftExercise instructions and video tutorials in Superlift

Inch Worm FAQ

What does the inchworm stretch?

Mainly your hamstrings and calves as you reach down and walk your feet in. It also warms up your shoulders and core.

Is the inchworm a good warm-up?

Yes. It raises your heart rate and moves your hips, shoulders and ankles through a good range before training.

How far should I walk my hands out on the inch worm?

Walk until you reach a plank with a flat back. If it is too hard, shorten the walk.

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