Abs exercise · body weight
Flexion Leg Sit Up (Bent Knee)
The flexion leg sit up (bent knee) is a bodyweight exercise that targets the abs, with the hip flexors assisting.
- Target muscle
- Abs
- Also works
- Hip flexors
- Equipment
- Body weight
- Body part
- Waist
How to do the flexion leg sit up (bent knee)
- Lie flat on your back with your knees bent and feet flat on the ground.
- Place your hands behind your head with your elbows pointing outwards.
- Engaging your abs, slowly lift your upper body off the ground, curling forward until your torso is at a 45-degree angle.
- At the same time, lift your legs off the ground, bending your knees and bringing them towards your chest.
- Pause for a moment at the top, then slowly lower your upper body and 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 work as secondary muscles. See all ab exercises or every bodyweight exercise.
