Abs · Body weight · Intermediate
How to do Flexion Leg Sit Up (Bent Knee)
The flexion leg sit up (bent knee) is an abdominal exercise performed with body weight. It involves curling the upper body and bringing the knees toward the chest simultaneously, targeting the abs and hip flexors.
- Primary muscle
- Abs
- Also works
- Hip flexors
- Equipment
- Body weight
- Level
- Intermediate
- Category
- Abs
How to do Flexion Leg Sit Up (Bent Knee), step by step
- 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.
Muscles worked
Flexion Leg Sit Up (Bent Knee) works your abs as the main mover, with help from your hip flexors.
Track Flexion Leg Sit Up (Bent Knee) in SPLYT
Flexion Leg Sit Up (Bent Knee) 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.
