Dumbbell Starfish Crunch (Beginner)
Exercise info
| Primary muscles |  Abs |
|---|---|
| Secondary muscles | Obliques |
| Equipment |  Dumbbell |
| Movement pattern | Core |
| Rep range | 10–20 reps |
30 similar exercises
Representative exercise: Ab Machine Crunch
- Ab Machine Crunch
- Hip Crunch
- Frog Crunch
- Groin Crunch
- Long Arm Crunch
- Negative Crunch
- Leg Climb Crunch
- Crunch Heel Touch
- Knee Touch Crunch
- Knee In and Out Crunch
- Crunch (Straight Leg Up)
- Frog Crunch Feet Together
- Tabletop Reach and Crunch
- Starfish Crunch (Beginner)
- Crunch (arms straight) (side POV)
- Alternate Frog Crunch
- Alternate Leg Reach Crunch
- Bent Knee Abduction Crunch with Arms Through
- Air Pillow Crunch
- Sitting Toe Touch
- Bottle Weighted Frog Crunch
- Crunch - Back (Form Comparison)
- Ab Roller Crunch
- Machine Total Abdominal Crunch
- Stability Ball Crunch (Full Range Hands behind Head)
- 90° Single Knee Crunch
- Crunch Bent Knee against Wall
- Crunch (Legs on Stability Ball)
- Inversion Bench Crunch
- Glute-Ham Developer Crunch
How GYMKC sets the weight for this exercise
For example, if you do 10 reps with 12 kg in each hand and log that you could have done about 2 more, GYMKC estimates your 1RM per hand at about 17.3 kg.
With the dumbbell, each step is 2 kg (5 lb), so the next weight is 14 kg per hand. Within your 10–20 reps target, the sets you log decide whether to add reps first or add weight.
These numbers are an example of how the calculation works. Your actual prescription is recalculated every set from your own records. See how the calculation works
Related exercises
Lying Toe TapEasierDead BugEasierDumbbell Overhead Sit-upHarderDumbbell Decline Sit-upHarderDecline Sit-UpSimilar exerciseMachine Lying CrunchSimilar exerciseBarbell RolloutSimilar exerciseBand Kneeling CrunchSame muscle · different equipment
This information is based on our analysis of public content from evidence-based training experts in Korea and abroad. It is not a substitute for medical advice.
Weights and sets differ from person to person. The GYMKC app uses the sets you log to calculate the weight and reps for your next set.