Suspender Crunch (Forearm Support)
Advanced
Also known as: Forearm Suspension Crunch · Suspension Forearm Knee Tuck
Expert Advice
Shorten the knee tuck if you cannot control your pelvis. Increase the range only when you can return without your lower back sagging.
How-to-do Steps
- Set suspension foot cradles near floor level and place both feet inside.
- Place your forearms on the floor with elbows beneath your shoulders.
- Lift your knees and straighten both legs into a supported plank.
- Exhale as you tuck both knees toward your chest, gently rounding your trunk.
- Extend both legs together until your body returns to a straight plank.
- Repeat controlled tucks without letting your feet touch the floor.
Common Mistakes
- Straps swing between repetitionsFix: slow your return and pause before the next tuck.
- Chest sinks between your shouldersFix: press your forearms firmly into the floor.
Coach Cues
Knees move togetherCurl your pelvisPush through your forearms
Short reminders to keep in mind during every set.
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Muscles Worked
Suspender Crunch (Forearm Support) primarily targets the Abs, with Strength mechanics using Suspension. Understanding muscle activation patterns helps you focus on proper engagement and maximize training effectiveness.
Primary

Abs75%
Secondary

Quads25%
Equipment
Suspension

Exercise Type
Strength
Why Level 4?
Advanced
Suspended feet create instability while you coordinate knee tucks and trunk control.
Technique
Stability
Strength
Mobility
Impact
Learning
Sets & Reps Guidance
Beginner2 x 10-12
Intermediate3 x 8-10
Advanced4 x 6-8
Frequently Asked Questions
What muscles does Suspender Crunch (Forearm Support) work?
Suspender Crunch (Forearm Support) primarily targets the Abs. Secondary muscles involved include Quads. It is classified as a Strength exercise performed with Suspension.
How many sets and reps should I do for Suspender Crunch (Forearm Support)?
For beginners, start with 2 sets of 10-12. Intermediate lifters can do 3 sets of 8-10. Advanced athletes can push to 4 sets of 6-8. Adjust based on your goals and recovery capacity.
Is Suspender Crunch (Forearm Support) suitable for beginners?
Suspender Crunch (Forearm Support) is rated as an advanced exercise and is best suited for experienced lifters. Beginners should build foundational strength with simpler movements first before attempting this exercise.
What are the most common mistakes when doing Suspender Crunch (Forearm Support)?
Straps swing between repetitions: slow your return and pause before the next tuck. Chest sinks between your shoulders: press your forearms firmly into the floor.