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.
- Target muscle
- Abs
- Also works
- Hip flexors, lower back
- Equipment
- Body weight
- Body part
- Waist
How to do the butt-ups
- Lie flat on your back with your knees bent and feet flat on the ground.
- Place your hands by your sides, palms facing down.
- Engaging your abs, lift your legs off the ground, bringing your knees towards your chest.
- At the top of the movement, squeeze your abs and pause for a moment.
- Slowly lower your legs back down to the starting position.
- 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.







