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V-Up: Technique, Muscles and Swaps

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Equipment
Bodyweight
Muscle group
Core
Main muscles
rectus abdominis, hip flexors
Also working
none notable
Mechanics
Compound
Pattern
Flexion
Level
Intermediate

The V-Up is an intermediate bodyweight exercise that targets your core through a compound flexion movement. By lifting your upper and lower body simultaneously, you force your midsection to stabilize and contract intensely. This movement requires coordination and control to execute properly.

Because it requires no equipment, you can perform it anywhere to train your rectus abdominis and hip flexors. It demands more from your core than a standard crunch, teaching your upper and lower halves to work together efficiently.

How to do it

Lie flat on your back on a mat with your legs fully extended and your arms reaching straight overhead. Keep your lower back pressed lightly into the floor.

  1. Brace your core and keep your legs straight and squeezed together.
  2. Simultaneously lift your legs and your upper body off the floor.
  3. Reach your hands toward your toes to form a V shape with your body.
  4. Pause briefly at the top of the movement to maximize the contraction.
  5. Slowly lower your arms and legs back to the starting position with control.

Sets, reps and load

Start with 3 sets of 8 to 12 repetitions. Focus on strict form rather than high rep counts.

Since this is a bodyweight movement, you can increase the difficulty by slowing down the eccentric lowering phase or holding a light weight in your hands.

Common mistakes

  • Bending the knees. Keep your legs as straight as possible to fully engage your hip flexors and rectus abdominis.
  • Dropping down too fast. Lower your body slowly to maintain tension on your rectus abdominis throughout the entire repetition.
  • Arching the lower back. Press your lower back into the floor at the start and end of each rep to maintain proper alignment.
  • Using momentum. Initiate the lift by contracting your core rather than swinging your arms or throwing your legs up.
  • Neck straining. Keep your gaze fixed on your toes and avoid pulling your chin directly into your chest.

Make it easier or harder

Easier

  • Tuck crunches, bringing your knees to your chest instead of keeping your legs straight.
  • Alternating single-leg V-Ups, lifting only one leg at a time to meet your hands.

Harder

  • Hold a light medicine ball or dumbbell in your hands while performing the movement.
  • Pause for three seconds at the top of the V position on every repetition.

Before you load it up

  • This is an advanced variation. Build strength with the easier versions first.

Swaps and related core exercises

Same muscle group with different equipment:

More bodyweight options:

Browse all bodyweight exercises or every core exercise.

When to see a doctor or physio

  • Sharp pain in your lower back during the lift or descent.
  • A pinching sensation in the front of your hips that does not improve with form adjustments.
  • Numbness or tingling radiating down your legs.

This page is general training information, not medical advice. If you are new to strength training, managing a health condition, pregnant or coming back from an injury, check with a doctor or physio first.

How this page was made. Exercise data (equipment, muscles, mechanics, level) compiled by the Unite Journal Crew as a general anatomy guide, cross-checked against the public-domain free-exercise-db list. Text drafted with AI assistance and edited by the crew; see our house rules. Last checked October 2026.