TRX Kneeling Oblique Rollout
What Is the TRX Kneeling Oblique Rollout?
TRX Kneeling Oblique Rollout is a compound exercise that primarily targets the core and also engages the shoulders, lats and serratus anterior. It is an intermediate-level movement in which you kneel, hold the suspension handles and lean forward, reaching out and to one side while keeping your trunk in one rigid line.
The straight version of this movement mainly trains the abs to resist the lower back arching. Reaching on a diagonal adds a second job for the obliques: they have to stop the hips and ribs from twisting toward the side you are reaching to. That makes it a good choice for building the trunk stiffness that carries over to throwing, carrying and lifting with one side loaded. A lab study of 17 active men tested a standing, inclined suspension roll-out rather than this kneeling version, and found it loaded the rectus abdominis and external obliques harder than a pike, knee tuck or body saw.
Kneeling shortens the lever compared with the standing TRX Rollout, so it is the easier place to learn the pattern. You can make it harder by reaching farther, slowing the return or moving toward the straight-legged TRX Body Saw. Lower the difficulty by rolling out only partway and returning before your lower back starts to arch.
It suits lifters and clients who can already hold a strict Plank without the hips sagging, and who have comfortable overhead shoulder range. If that plank is not there yet, build it first, and use the Ab Wheel Rollout on the knees as a comparison for how much range you can control.
Muscles Worked
- External Oblique
- Primary
- Rectus Abdominis
- Primary
- Deltoid
- Medium
- Latissimus Dorsi
- Medium
Instructions
- Adjust the straps to the same length and kneel beneath the anchor point, with the handles hanging in front of your chest.
- Hold one handle in each hand, elbows slightly bent and tucked in near your ribs, with your hips extended so your body forms a straight line from knees to head.
- Tuck your pelvis slightly and brace your abs so your ribs stay down.
- Lean forward and reach your arms out and to one side on a diagonal, letting the straps swing you out while your hips stay extended and square.
- Keep your arms reaching ahead and overhead, and keep the line from knees to head rigid, with no bend at the hips and no arch in the lower back.
- Stop when your hands are near head height, or sooner if you cannot hold the line.
- Pull your hands back toward your chest by tightening your abs and obliques, not by yanking with your arms, until you are upright over your knees.
- Repeat for the planned reps, then switch to the other side or alternate sides.
Common Mistakes
Arching the lower back
Letting the ribs flare and the lower back drop into extension at the far end of the reach shifts load onto the spine instead of the abs.
Sagging at the hips
Bending at the hips or letting them drift back turns the body into a pike and removes the work from the trunk.
Twisting the hips and ribs
Turning the pelvis toward the reach side defeats the anti-rotation job the diagonal path is meant to train.
Pulling back with the arms
Yanking the handles in with the arms or lats removes the abs and obliques from the return.
Rushing the return
Bouncing or snapping back from the end range gives up control, so the return should be as slow as the reach.
Reaching past your control
Going farther than you can hold a straight line trades technique for range.
Injuries
TRX Kneeling Oblique Rollout is a medium risk exercise when performed with proper technique. The long lever puts a lot of demand on the abs and shoulders, and the risk rises sharply once the hips sag and the lower back arches.
The lower back is the usual strain point. Reach only as far as you can keep your ribs down and a straight line from knees to head, and bring the handles back before the spine drops into extension. The shoulders are the second strain point because the arms travel overhead under load, so stop if you feel pinching at the front or top of the shoulder.
If the full range is too hard, shorten the reach or start with a Plank. Once the kneeling version is clean, the standing TRX Rollout is the next step up. Skip this exercise during an acute lower back or shoulder injury, and stop any set that causes sharp pain or numbness.
- Primary Focus
- Core
- Equipment
- Suspension trainer and body weight
- Modality
- Strength
- Difficulty
- Intermediate
Alternative Exercises
Frequently Asked Questions
- Q: How is this different from a standard kneeling rollout?
Reaching on a diagonal adds a rotation demand, so the obliques must keep the hips and ribs square while the abs resist the back arching. A straight rollout trains mostly the anti-extension part.
- Q: How many reps should I do?
A typical range is 6 to 10 controlled reps per side, with the reps for each side done in a row or alternated. Stop a set when you can no longer hold a straight line.
- Q: How do I know I have reached too far?
The ribs flare, the lower back arches, the hips drop or the elbows bend. Return from the point just before any of those happen.
- Q: What should I do when this gets easy?
Slow the return, add a short pause at the end range or move to the standing TRX Rollout. Make only one change at a time.