Knee-in to V-out

The knee-in to V-out is a bodyweight abdominal exercise performed on the floor. It is similar to both the reverse crunch and the V-up exercise, but combines elements of both. It primarily targets the muscles of the rectus abdominis, or “six-pack” muscles. It can be performed for reps or time, either as part of an ab-focused workout or as a component of a circuit workout.


  1. Serious abdominal activation and burn
  2. Targets the six-pack muscles, but also the obliques and hip flexors
  3. Great for variety if you've been doing standard V-ups
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Knee-in to V-out Images


Knee-in to V-out Instructions

Knee-in to V-out muscle diagram