Jackknife Sit-Up

The V-up is a bodyweight movement that targets the muscles of the abs, the rectus abdominis or "six-pack" muscles in particular. It is similar to a suitcase crunch, but the lower back lifts off the ground at the top of each rep. It can be performed for time or reps in the ab-focused portion of any workout.

Benefits

  1. Strengthens the abs and hip flexors
  2. Increases core strength and stability
  3. More difficult than standard crunches or reverse crunches
  4. Requires no equipment
8.5
Average

Jackknife Sit-Up Images

Jackknife Sit-Up image
Jackknife Sit-Up image

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