Crunches
- Primary musclesAbs
- EquipmentBody Only
- LevelBeginner
- ForcePull
AtletIQ — a workout log: working weight, sets and reps for your goal and level.
Calculate your weight in the app-
01Starting position -
02Final position
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01Starting position -
02Final position
Muscles worked
Primary muscles
Secondary muscles
What weight to use
Set your goal and fitness level — the AtletIQ app calculates the working weight and number of reps for "Crunches".
- Working weight for your goal and fitness level
- Sets, reps and rest in your workout log
- Progress for every exercise
| Workout | Weight | Sets × reps |
|---|---|---|
| 1 | 35.5 kg | 3 × 10 |
| 2 | 40 kg | 3 × 8 |
| 3 | 33 kg | 4 × 12 |
How to do it
6 stepsLie flat on your back with your feet flat on the ground, or resting on a bench with your knees bent at a 90 degree angle. If you are resting your feet on a bench, place them three to four inches apart and point your toes inward so they touch.
Now place your hands lightly on either side of your head keeping your elbows in. Tip: Don't lock your fingers behind your head.
While pushing the small of your back down in the floor to better isolate your abdominal muscles, begin to roll your shoulders off the floor.
Continue to push down as hard as you can with your lower back as you contract your abdominals and exhale. Your shoulders should come up off the floor only about four inches, and your lower back should remain on the floor. At the top of the movement, contract your abdominals hard and keep the contraction for a second. Tip: Focus on slow, controlled movement - don't cheat yourself by using momentum.
After the one second contraction, begin to come down slowly again to the starting position as you inhale.
Repeat for the recommended amount of repetitions.
Variations: There are many variations for the crunch. You can perform the exercise with weights, or on top of an exercise ball or on a decline bench.
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AtletIQ app
A workout log with working weight calculation: program, sets and progress on your phone.