U Crunches Exercise Guide
Reviewed by
Valerie Zeller
Printable version
U Crunches are bodyweight exercise that works your quadriceps, hip flexors, lower abs, upper abs and transverse abs.
U Crunches are great moderate move. When done correctly, they can effectively target your core, hips, legs, lower body, thighs, upper legs and waist.
They require no equipment to do.
How to do U Crunches
Exercise
Start lying on your back with your arms stretched out over head, and your legs straight. Crunch up trying to touch your toes with your hands. Keep your legs as straight as possible. Lower your arms and straight legs back down to the floor with control.
Illustrated Guide
Learn how to do u crunches from this step-by-step illustrations:
Muscles Worked
The muscles used for u crunches may change slightly based on the your trained range of motion and technique, but in the most general case, the muscles used for u crunches are:
Primary Muscles
- Quadriceps
- Hip Flexors
- Lower Abs
- Upper Abs
- Transverse Abs
Synergyst Muscles
- Deltoids
- Front Deltoids
Frequently Asked Questions
Training, Progressions and Regressions
Interested in how to improve your U Crunches faster?
U Crunches Training and Progressions
Standards and Averages
Wonder how do others perform in U Crunches and how should you?
U Crunches Standards and Averages
Alternatives
Wonder how to work the same muscles with other exercises?
Variations
Wonder how to make U Crunches either easier or more challenging?
Discover more
Classification
| Type(s) | Bodyweight, Calisthenic, Strength, Aerobic, Cardio, Endurance |
| Muscles Worked | Deltoids, Quadriceps, Hip Flexors, Lower Abdominals, Anterior Deltoids, Upper Abdominals, Transverse Abdominis |
| Difficulty Level(s) | Moderate |
| Equipment | No Equipment |
| Location | At Gym, At Home, Outdoor |
Muscles Worked
| Target muscle(s) | Quadriceps, Hip Flexors, Lower Abs, Upper Abs, Transverse Abs |
| Synergyst muscle(s) | Deltoids, Front Deltoids |
