LoadMuscle
  • Workouts
  • Exercises
  • Free Workout Planner

LOAD MUSCLE

If you've come this far, you can start now!

Product

Free Workout PlannerWorkoutsExercisesFAQ

Company

HomeAboutTwitterSupport

Legal

Terms of UsePrivacy Policy
© 2025 Load Muscle. All Rights Reserved.
    1. Home
    2. Exercises
    3. Weighted Crunch (bent knee)

    Weighted Crunch (bent knee) Exercise Guide

    Weighted Crunch (bent knee) demonstration

    Exercise Profile

    Target
    Rectus Abdominis
    Equipment
    Stability ball
    Body Part
    Waist
    Primary Muscle
    Rectus Abdominis
    Secondary Muscles
    Hip Flexors, Obliques
    Intensity
    medium
    Category
    strength
    Skill Level
    beginner
    Estimated Calories
    4
    Alternate Names
    Bent Knee Weighted Crunch

    How to: Weighted Crunch (bent knee)

    1. Start by sitting on a stability ball and walk your feet forward until your back rests against the ball.
    2. Place a weight behind your head and hold it gently with both hands.
    3. With your feet flat on the ground, crunch your torso up towards your knees, engaging your abs.
    4. Slowly lower back down to the starting position while keeping control.
    5. Repeat for the desired number of repetitions.

    Common Mistakes

    • Rounding the back instead of keeping it neutral.
    • Using momentum to lift rather than engaging the core.
    • Not controlling the descent back to the start position.

    Modifications

    • Perform the exercise without added weight if you find it challenging.
    • You can perform this exercise on a flat surface instead of a stability ball.

    Tips

    • Keep your feet secured to the stability ball to avoid losing balance.
    • Breathe out while crunching up and in while coming down.
    • Avoid pulling on your neck; your hands should just lightly support your head.

    Weighted Crunch (bent knee) Alternatives

    Weighted Crunch

    Weighted Crunch

    Body Part: Waist

    Band Kneeling Crunch

    Band Kneeling Crunch

    Body Part: Waist

    Band Reverse Crunch

    Band Reverse Crunch

    Body Part: Waist

    Tags

    core
    abdominal
    strength
    beginner
    weighted
    stability ball

    Exercises in Your Pocket with LoadMuscle

    GET IT ONGoogle Play
    Download on theApp Store
    Back to exercises