Flexion leg sit up (bent knee)
The flexion leg sit up (bent knee) is a core exercise targeting the abdominal muscles. It involves lying on your back with knees bent and feet flat on the floor, then lifting your upper body towards your knees.
At a glance
- Area
- Waist
- Main muscle
- Abs
- Equipment
- Body weight
- Level
- Beginner
Form tips
- Keep your lower back pressed against the floor.
- Exhale as you lift your torso.
- Avoid pulling on your neck with your hands.
What to watch out for
- lower back pain
- recent abdominal surgery
- pregnancy
Also known as
Crunch a gambe flesse, bent knee sit up, flexion leg sit up, abs exercise, core workout