Abs · Body weight · Beginner
How to do Butt-ups
Butt-ups are a bodyweight exercise targeting the abdominal muscles. The movement involves lying on your back, lifting your legs towards your chest, and engaging your core to raise your hips off the ground. This exercise also works the hip flexors and lower back as secondary muscles.

- Primary muscle
- Abs
- Also works
- Hip flexors and Lower back
- Equipment
- Body weight
- Level
- Beginner
- Category
- Abs
How to do Butt-ups, step by step
- 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.
Muscles worked
Butt-ups works your abs as the main mover, with help from your hip flexors and lower back.
Track Butt-ups in SPLYT
Butt-ups is already in SPLYT’s exercise library. Log your sets, reps and weight on iPhone or Apple Watch, with last time’s weights already filled in.
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