Jack Knife (Suspension)
Learn how to do the Jack Knife (Suspension) with proper form, setup, and execution.
This suspension band movement primarily targets waist, including abdominals.
How to Perform Jack Knife (Suspension)
- 1
Adjust the suspension straps to a low length and place your feet in the foot cradles.
- 2
Get into a push-up position with your hands flat on the floor and your body in a straight line.
- 3
Engage your abs and take a breath.
- 4
Draw your knees toward your chest by pulling your feet in, rounding your hips upward and exhale.
- 5
Slowly extend your legs back to the starting position and breathe in.
- 6
Repeat for the desired number of repetitions.
Training Guidelines
The targets below are general guidelines. Adjust volume and intensity based on your experience, recovery, and goals. If you track effort, aim for most working sets around RPE 7–9.
| Goal | Sets | Reps | Rest |
|---|---|---|---|
| Strength | 3-5 | 4-6 | 2-3 min |
| Muscle Growth | 3-4 | 8-12 | 60-90 sec |
| Endurance | 2-3 | 15-20 | 30-60 sec |
| Beginner | 2-3 | 10-15 | 60-90 sec |
Want to pair movements efficiently? Try grouping them as supersets.