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Abs exercise · body weight

Butt-Ups

The butt-ups is a bodyweight exercise that targets the abs, with the hip flexors and lower back assisting.

Animated demonstration of the butt-ups
Butt-Ups — demonstration
Target muscle
Abs
Also works
Hip flexors, lower back
Equipment
Body weight
Body part
Waist

How to do the butt-ups

  1. Lie flat on your back with your knees bent and feet flat on the ground.
  2. Place your hands by your sides, palms facing down.
  3. Engaging your abs, lift your legs off the ground, bringing your knees towards your chest.
  4. At the top of the movement, squeeze your abs and pause for a moment.
  5. Slowly lower your legs back down to the starting position.
  6. Repeat for the desired number of repetitions.

Sets and reps

Start with 3 sets of 10–15 reps, resting 45–60 seconds. When every set feels easy, add reps, slow the lowering phase or move to a harder variation.

Muscles worked

The main muscle is the abs. The hip flexors and lower back work as secondary muscles. See all ab exercises or every bodyweight exercise.

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