Target Muscle

    Abs

    Equipment

    Body Weight

    Difficulty

    Intermediate

    Category

    Strength

    CoreBody Weight

    Jackknife Situp

    The jackknife situp is a bodyweight exercise targeting the abdominal muscles. It involves simultaneously lifting the legs and upper body to meet in the middle, engaging the core and hip flexors.

    Also Works

    Hip Flexors

    How to Perform

    1. 1

      Lie flat on your back with your legs extended and your arms overhead.

    2. 2

      Engage your core and lift your legs and upper body simultaneously, reaching your hands towards your toes.

    3. 3

      Pause for a moment at the top, then slowly lower your legs and upper body back down to the starting position.

    4. 4

      Repeat for the desired number of repetitions.

    Pro Tips

    • •Focus on controlled movements rather than speed
    • •Breathe out during the exertion phase
    • •Keep your core engaged throughout the movement

    More Abs Exercises

    Master The Jackknife Situp with Forge

    Get personalized coaching, form feedback, and workout plans featuring Jackknife Situp and other exercises tailored to your goals.

    Join the Waitlist