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Jacnifes are a core strengthening exercise that targets the obliques, rectus abdominis and also the hip flexor muscles. The upper body is also active in supporting the body. Jacnifes are a progression of both a push up and a bridge movement. Ensure you can perform both before progressing to this movement.

Functional Benefit

Jacknifes engage the core muscles along with the arms and the legs this increases the aerobic demand of the exercise. For this reason jacknifes are a good circuit exercise when looking to combine weight loss and core strengthening

Jacknife Technique

Exercise Technique Tips - Swiss Ball Jacknifes

Keep hips down during the movement

Push legs and straighten knees during the extension phase

Keep chest positioned over hands

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