Oblique V-Ups

Intermediate
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A bodyweight isolation movement performed lying on the side, contracting the obliques to simultaneously lift the legs and torso in a challenging V-shape movement.

About Exercise

Equipment

Body Weight

Difficulty

3/5 • Intermediate

Primary Muscle Groups

Obliques

Secondary Muscles

Abs

Popularity Score

6

Goals

Hypertrophy
Stability
Endurance

Training Style

Calisthenics
Functional Training

Setup Requirements

Requires Rack

No

Requires Bench

No

Requires Spotter

No

Space Needed

Small

Noise Level

Low

Muscle Breakdown

Obliques

10/10

External Obliques, Internal Obliques

Hip Flexors

6/10

Iliopsoas

Abs

5/10

Rectus Abdominis

Programming

Typical Rep Range

10-20 reps

Rest Between Sets

30-60 seconds • Rest briefly before switching sides or between sets.

How to Perform

Lie on one side with legs straight and stacked, placing the bottom arm out for support or resting it on the floor. Place the top hand gently behind your head.

  1. Simultaneously crunch your torso and raise your legs toward the ceiling, creating a V-shape with your body.
  2. Focus on contracting your side abdominal wall (obliques) at the peak of the movement.
  3. Slowly and controlledly lower your torso and legs back to the starting position.
  4. Complete all repetitions on one side before switching to the opposite side.

Coaching Tips

Form Cues

  • Squeeze your side
  • Meet in the middle
  • Control the descent
  • Keep legs straight

Breathing

Exhale strongly as you lift your torso and legs together, and inhale as you slowly return to the starting position.

Tempo

2-0-1

Range of Motion

Move until the torso and hips are visibly lifted off the floor and your obliques are fully contracted laterally.

Safety

Safety Notes

  • Stop immediately if you feel sharp pain in the lower back or hip flexors.
  • Ensure neck remains neutral; the hand is only a guide, not a pulling aid.

Spotting

Not applicable as this is a bodyweight core exercise; focus on maintaining control.

Common Mistakes

  • Using momentum to swing up
  • Pulling hard on the neck or head
  • Not fully contracting the side abdominals
  • Rushing the lowering phase

When to Avoid

  • Acute lower back pain
  • Severe hip flexor strain

Flexibility Needed

  • Sufficient spinal lateral flexion

Build Up First

  • Ability to perform a standard side plank
  • Basic bodyweight crunch competency

Also known as

Oblique Jackknife, Side Crunch With Leg Lift, Side Jacknife

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