fitubaReverse crunch
Abs · no equipment. Bring your knees in and lift your pelvis slightly without swinging your legs.
Main muscle: Abs
Also works: almost all the work falls on the main muscle
Equipment: no equipment
Typical: 2–4 slow sets of 8–15; per side when alternating.
How to do it
- Bring your knees in and lift your pelvis slightly without swinging your legs.
- Hands at your sides for balance; knees at 90°.
- Curl your pelvis toward your ribs and lower slowly without arching your lower back.
Common mistakes
- Swinging your legs for momentum.
- Letting your lower back arch on the way down.
- Pushing your hands into the floor.
Alternative
No equipment, or want to switch it up: Floor crunch.
Log it in one message
Type or say: “Did 3 sets of 12 reverse crunch.”
Fituba logs the weights session and its points; in Train you can add sets, reps and load to compare your strength progress. Sample wording, not a prescription.FAQ
What muscles does the reverse crunch work?
Main: abs. It's an isolation exercise: almost all the work falls on that muscle.
How many sets and reps of reverse crunch?
Typical: 2–4 slow sets of 8–15; per side when alternating. Adjust the load so you finish every set with good form; the load is the extra weight on top of your bodyweight.
How do I log reverse crunch in Fituba?
Type “Did 3 sets of 12 reverse crunch” and Fituba logs your weights session with its sets, reps and load.
Sources and limits
Original Fituba copy based on standard technique guides (StrengthLog · Abs). General education: the demo and these notes don't assess your form, mobility or the right load for you; for individual coaching, see a trainer.
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