reckonerAb wheel rollout
The wheel is not something you do for a burn. It is a test of whether you can stop your back arching while your arms travel away from your hips, and measured against nine other exercises it sat near the top for both halves of the rectus abdominis and both obliques while the hip flexors stayed quiet1.
Ribs down, don't let the back arch.
- Pattern
- Core anti-extension
- Trains
- Abs, lats
- Kit
- Ab wheel, floor
- Loading
- Your own bodyweight
- Reckoner prescribes
- 3 sets of 8 to 12 reps at RPE 8
- Progression step
- Nothing to add, so the sets climb instead
- Skill
- Technical, worth coaching
- Recovery cost
- Moderate
- Not prescribed if you have declared
- Lower back, shoulder, wrist
Muscles worked
How to do it
Kneel and set the line first
Knees about hip width with something soft under them, hands on the handles, wheel under your shoulders. Squeeze the glutes and flatten the small of your back before the wheel moves at all. If you cannot find that position kneeling still, you will not find it moving.
Roll out only as far as the line holds
Push the wheel away and let the hips travel with it. The moment your back begins to arch you have passed your range, and that point is your rep. It will be shorter than you want it to be for the first few weeks.
Drag it back with the trunk
Reverse it by pulling your hips back toward your heels with the arms still long. If the elbows bend, the lats have taken the job and the abs have stopped resisting anything.
End the set on the first bad rep
The set is over when the back arches, not four reps after it. Log what you actually held the line for, because a rep you folded through and a rep you controlled are not the same exercise and the engine cannot tell them apart.
What goes wrong
Letting the hips lead on the way back
The backside shoots up first and the wheel follows it home. It feels like a rep because the wheel moved, but what happened is a fold at the hips, and the abs were never asked to hold anything.
Chasing full extension in the first month
Reaching all the way out looks like the finished exercise, so people go there early. Rolling past the range you can hold trades the thing you came for, and the back takes the difference.
Standing before kneeling is easy
From the feet the leverage against you is far greater and the position is far harder to keep. Kneeling is not the beginner's version of this. It is the version most people should be doing for years.
How Reckoner progresses this lift
Six weeks of this lift, run through the real engine. Nothing below was typed in: the prescription, the decision and the sentence beside it all come from the same code that writes your week.
| Week | Prescribed | What it did |
|---|---|---|
| 1 | 3 x 8 | More reps 8 → 9 repsYou finished every set at RPE 7, with room left in the range, so the reps climb before the load does. |
| 2 | 3 x 9 | More reps 9 → 10 repsYou finished every set at RPE 7, with room left in the range, so the reps climb before the load does. |
| 3 | 3 x 10 | More reps 10 → 11 repsYou finished every set at RPE 7, with room left in the range, so the reps climb before the load does. |
| 4 | 3 x 11 | More reps 11 → 12 repsYou finished every set at RPE 7, with room left in the range, so the reps climb before the load does. |
| 5 | 3 x 12 | Deload 40% of sets offFive weeks of building, then one week lighter. About 40% of the sets come off. The load holds and your reps stay where you earned them, so you keep the strength and lose the fatigue. |
| 6 | 2 x 12 | One more set 2 → 4 setsYou hit the top of the range at RPE 7 and there is no weight left to add. When a lift runs out of load, the set is the increment, so it does four sets next week. |
Real engine output, not an illustration. Every row was produced by running the engine itself when this page was generated.
The full rule, and why the reps move before the load does, is in how Reckoner decides to add weight.
Questions people ask
Is the ab wheel bad for your lower back?
It is hard on a back that cannot stay flat, which is a different sentence. Lumbar muscle activity stayed under a tenth of a maximal contraction in every exercise that study measured, the roll-out included, and the roll-out was among the lowest for the hip flexors1. What loads a back here is going past your range and arching to finish the rep.
Will this give me visible abs?
Training the muscle and uncovering it are two separate jobs. Six weeks of abdominal work in sedentary adults, with food held level, improved abdominal endurance and changed body fat, abdominal girth and skinfolds not at all2. The wheel builds the muscle. What you can see is settled elsewhere.
How does Reckoner progress something with no weight on it?
By reps, and the run above is a real one rather than a description of one. Every number and every sentence in that table came back from the same code that writes your week.
Similar movements
Reckoner has no other movement in this swap group.
Sources
- Escamilla and colleagues, Journal of Orthopaedic and Sports Physical Therapy, 2010. Core muscle activation during Swiss ball and traditional abdominal exercises eighteen participants across ten exercises, with the roll-out reaching 63 per cent of a maximal contraction at the upper rectus abdominis, 53 per cent at the lower rectus abdominis and 46 per cent at both obliques, significantly greater than most other exercises, while rectus femoris sat among the lowest at 6 to 10 per cent and lumbar paraspinal activity stayed under 10 per cent in every exercise measured
- Vispute and colleagues, Journal of Strength and Conditioning Research, 2011. The effect of abdominal exercise on abdominal fat twenty-four sedentary adults randomized to six weeks of abdominal training or nothing on an isocaloric diet, with no significant effect on body weight, body fat percentage, android fat, abdominal circumference or either skinfold, and a significant improvement in abdominal muscular endurance