What's a reasonable rep count for starting the half-kneeling landmine rotation?

Start with 2 to 3 sets of 10 to 12 reps per side with only the empty bar or a light plate, keeping both hips square to the front the whole time. Add weight only once you can rotate through a full range without either hip swiveling open.

What can I use instead of a landmine setup for the half-kneeling rotation?

Wedging the barbell into a sturdy corner works as well as a landmine attachment if you don't have one. Without a barbell, a resistance band anchored at chest height, or a light medicine ball held at the chest, trains the same half-kneeling rotation pattern.

What does the half-kneeling landmine rotation train, and when should I skip it?

It's a regression from the standing rainbow that locks the hips down so the obliques and ribs learn to produce rotation on their own, useful for cleaning up hip-driven cheating before adding standing power work. Skip it, or shorten the range, if kneeling loads your down knee painfully, since the position holds steady weight on that knee for the whole set.

Intermediate

Half-Kneeling Landmine Rotation

Dropping to half-kneeling locks the lower body and forces the rotation to happen at the trunk rather than the hips and feet. The obliques rotate the barbell side to side while the down leg fights to keep you square, adding an anti-rotation layer. It is a strong regression from the standing version and a good way to clean up sloppy, hip-driven rotation.

Equipment: Barbell, Landmine
Body part: Abs
Type: Functional, Strength
Browse by muscle: Abdominal External Oblique
Browse by movement: Rotation

How to do it

1
Anchor one end of a barbell and take a half-kneeling stance facing the bar, one knee down.
2
Hold the free end with both hands at chest height, elbows soft.
3
Set your hips square and brace your abs firmly.
4
Rotate the bar to one side by turning through your ribs, keeping the hips still.
5
Bring it back to center, then rotate to the other side under control.
6
Finish your reps, switch the down knee, and repeat.

Tips

Keep both hips pointing forward; if they swivel, shorten your range.
Move the bar with your torso, not by pushing with the arms.
Stay tall through the spine rather than folding forward as you turn.

Variations

Common mistakes

The down-knee side leans away from center to help the bar travel farther, turning trunk rotation into a side lean.
The chest height grip drifts down toward the belt as the set goes on, changing the leverage and quietly shrinking how much the ribs have to rotate.
The pace speeds up toward the end of the set, so the return to center gets skipped in favor of bouncing straight into the next rep.
The down knee shifts forward on the mat as fatigue sets in, narrowing the stable base the half-kneeling position is meant to provide.
Switching the down knee only after several sets on the stronger side leaves a real strength gap between the two sides.

Frequently asked

What's a reasonable rep count for starting the half-kneeling landmine rotation?: Start with 2 to 3 sets of 10 to 12 reps per side with only the empty bar or a light plate, keeping both hips square to the front the whole time. Add weight only once you can rotate through a full range without either hip swiveling open.
What can I use instead of a landmine setup for the half-kneeling rotation?: Wedging the barbell into a sturdy corner works as well as a landmine attachment if you don't have one. Without a barbell, a resistance band anchored at chest height, or a light medicine ball held at the chest, trains the same half-kneeling rotation pattern.
What does the half-kneeling landmine rotation train, and when should I skip it?: It's a regression from the standing rainbow that locks the hips down so the obliques and ribs learn to produce rotation on their own, useful for cleaning up hip-driven cheating before adding standing power work. Skip it, or shorten the range, if kneeling loads your down knee painfully, since the position holds steady weight on that knee for the whole set.

Related exercises

Other movements among FitRay's 2,000+ exercises that load the same target muscle — same equipment and level first.

All Abs exercises