CoreReps OnlyRated 7 out of 10

Suspender Jack-Knife

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Animated demonstration of the Suspender Jack-Knife

How to do the Suspender Jack-Knife

  1. 1Start in a plank position with your feet suspended in the suspension trainer.
  2. 2Engage your core and keep your body straight.
  3. 3Pull your knees towards your chest, keeping your back straight.
  4. 4Extend your legs back to the starting position.

Muscle group

Core

Type

Reps Only

Equipment

Suspension Trainer

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