Bench Jack Knife Video & Instructions

Bench Jack Knife video exercise guide. On this page you'll learn how to do a bench jack knife using the correct technique. Below you'll find the bench jack knife video, pictures, exercise instructions, and tips on how to get the most out of the exercise. Click the play button below to start the video!

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Exercise Instructions:

Lay down on your back on a flat bench with your legs hanging off one end. Extend your arms out above your head, and straighten your legs. You should be laying completely flat. This is the start of the exercise. In one motion keeping your hands and feet together, raise your legs and bring your arms forward as if you were trying to touch them together. Lower back to the starting position. Repeat for desired reps.

Tips:

This is a very challenging exercise, the slower you do it the harder it is, and the more benefit you will get from it.