The reverse crunch lifts your hips, not your shoulders, and this reverse crunch counter treats it that way. Your upper body stays down while your knees curl in toward your chest.
Every rep begins with your legs stretched out long, so that's the position to take before you start. A mat helps on a hard floor, and the camera only cares about your shape.
Phone setup
Prop the phone on the floor in landscape, roughly 2 meters (6 feet) from your side, so your whole body fits in the frame.
Lie side-on to the phone with your legs extended and your heels hovering just off the floor. Resting them on the floor is fine too.
- Glance at the preview before your first curl to make sure your head and your feet both fit.
Form cues
- Start with long legs. The counter looks for your legs extended before each curl, and every rep opens back out into that long position.
- Curl knees to chest. Your hips curl up off the floor as the knees come in. That fold is the far position.
- Keep your shoulders down. Lifting your upper body off the floor stops the count until you lie back.
- Extend back out. Stretching your legs long again is what completes the rep.
Common mistakes
- Starting with knees already up. With your knees bent over your hips, the camera never sees the extended start it needs, so nothing counts. Straighten out first.
- Lifting your upper body. That turns it into a different movement and pauses the counting. Keep your upper back pressed into the floor.
- Letting your legs crash down. Lower them under control so each rep finishes with the legs long, not bouncing off the floor.
How FitnessBruh counts it
Hip angle is what's measured here, from shoulder to hip to knee. Legs extended is the start, knees pulled to your chest as your hips curl up is the far position, and extending back out finishes the rep.
Your shoulders stay down. If your upper body lifts off the floor, counting stops until you lie back down.
The start works like the sit up's: lie back for a moment while the coach prompts the position, then it tells you counting is live.
FAQ
Why isn't my reverse crunch counting at all?
Check your starting position. If your knees begin already bent up over your hips, the app never sees the extended start it needs. Straighten your legs, then curl.
Do my heels have to float off the floor?
Hovering just off the floor is the usual start, though resting your heels on the floor works as well. What matters is that your legs start out extended.
Is this the same as a double crunch?
Not quite. A reverse crunch curls only your knees and hips while your shoulders stay down. The double crunch closes the fold from both ends and has its own page.
