Floor Jack
Hips curl off the floor while legs stay vertical
- Level
- Intermediate
- Movement
- Jackknife · Lying on the back
- Tracks
- Reps only
Works
Abdominals
How to do it
- Lie flat on your back with legs extended and arms at your sides.
- Lift both legs straight up until they are perpendicular to the floor.
- Engage your abs to curl your hips off the ground slightly.
- Lower your hips back down while keeping your legs vertical.
- Slowly lower your legs toward the floor without touching it.
- Repeat the sequence immediately for the desired repetitions.
Common mistakes
- Arching the lower back when lowering the legs.
- Bending the knees instead of keeping legs straight.
- Using momentum to swing the legs upward.
- Dropping the legs too quickly without control.
Tips
- Press your lower back firmly into the mat during the leg lowering phase.
- Exhale sharply as you lift your hips off the floor.
- Keep your toes pointed to maintain tension in the legs.
Details
- Base movement
- Jackknife
- Legs
- Both
- Arms straight or bent
- Straight arms
- Legs straight or bent
- Straight legs
- Body position
- Lying on the back
