Crunch Floor
Expert Advice
Exhale as you crunch up to increase the contraction in your abs.
How-to-do Steps
- Lie on the floor with your knees bent and feet flat.
- Place your hands behind your head or across your chest.
- Engage your abs and lift your shoulders off the floor.
- Lower back down to the starting position.
- Repeat for the desired number of repetitions.
Track Crunch Floor in FitAI
Log your sets, reps, and weights automatically. Get AI-powered progressive overload recommendations and form feedback — personalized to your training history.
Muscles Worked
Crunch Floor primarily targets the Abs, with Strength mechanics using Body Weight. Understanding muscle activation patterns helps you focus on proper engagement and maximize training effectiveness.
Primary

Abs100%
Equipment
Body Weight

Exercise Type
Strength
Sets & Reps Guidance
Beginner3 x 12-15
Intermediate3 x 10-12
Advanced4 x 8-10
Frequently Asked Questions
What does Crunch Floor work?
This exercise directly targets your abs through a focused isolation movement. It is one of the most popular abs exercises and requires no equipment at all.
Is Crunch Floor good for beginners?
Yes. Crunch Floor uses a simple movement pattern that does not require advanced coordination. It requires no equipment, so you can do it anywhere. Focus on controlled reps and good form before worrying about speed or volume.
How many sets and reps should I do for Crunch Floor?
Start with 3 sets of 10 to 15 reps. If the exercise works one side at a time, do 10 to 15 reps per side. Rest 30 to 60 seconds between sets. Track your sets in the FitAI app to make sure you are progressing over time.