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    1. Home
    2. Exercises
    3. Flexion Leg Sit up (bent knee)

    Flexion Leg Sit up (bent knee) Exercise Guide

    Flexion Leg Sit up (bent knee) demonstration

    Exercise Profile

    Target
    Rectus Abdominis
    Equipment
    Body weight
    Body Part
    Waist
    Primary Muscle
    Rectus Abdominis
    Secondary Muscles
    Obliques, Iliopsoas, Quadriceps
    Intensity
    medium
    Category
    strength
    Skill Level
    beginner
    Estimated Calories
    4.5
    Alternate Names
    Bent Knee Sit-Up

    How to: Flexion Leg Sit up (bent knee)

    1. Lie on your back with your knees bent and feet flat on the ground.
    2. Place your hands behind your head or cross them over your chest.
    3. Engage your core and lift your upper body toward your knees.
    4. Pause for a moment, then slowly lower back down to the starting position.
    5. Repeat for the desired number of repetitions.

    Common Mistakes

    • Pulling on the neck with your hands.
    • Rounding the back instead of engaging the core.
    • Not completing the full range of motion.

    Modifications

    • You can perform this exercise with a smaller range of motion.
    • Use an exercise mat for added comfort.

    Tips

    • Engage your core fully during the movement.
    • Avoid using momentum; focus on controlled movements.
    • Keep your feet flat on the ground to protect your lower back.

    Flexion Leg Sit up (bent knee) Alternatives

    Vertical Leg Raise (on parallel bars)

    Vertical Leg Raise (on parallel bars)

    Body Part: Waist

    V up

    V up

    Body Part: Waist

    Tags

    core
    abs
    strength
    exercise
    bodyweight
    beginner

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