TETSUAssisted Sit-Up vs Reverse Plank With Leg Lift
The Assisted Sit-Up and the Reverse Plank With Leg Lift both train the abs as their primary muscle. The Assisted Sit-Up is an assisted movement while the Reverse Plank With Leg Lift is bodyweight-only. Here is how they compare and when to pick each.
Side-by-side comparison
| Assisted Sit-Up | Reverse Plank With Leg Lift | |
|---|---|---|
| Primary muscle | abs | abs |
| Body part | waist | waist |
| Supporting muscles | hip flexors | glutes, hamstrings and shoulders |
| Equipment | assisted | bodyweight |
| Steps in our guide | 6 | 6 |
How each one starts
Assisted Sit-Up — first steps
- Sit on the edge of a bench or have someone hold your feet down.
- Lie flat on your back with your knees bent and feet flat on the ground.
Reverse Plank With Leg Lift — first steps
- Sit on the ground with your legs extended in front of you and your hands resting on the ground behind you, fingers pointing towards your feet.
- Press through your hands and lift your hips off the ground, coming into a reverse plank position.
Full step-by-step guides are linked below.
Which should you choose?
The Assisted Sit-Up reduces the load so you can own the movement before going unassisted. The Reverse Plank With Leg Lift needs no equipment and scales through leverage, tempo and reps. If your gym has both options, neither is a wrong choice: pick the one that feels strongest through a full range, and swap after 6 to 8 weeks to keep the abs adapting.
Full form guides
Common questions
Is the Assisted Sit-Up better than the Reverse Plank With Leg Lift?
Neither is universally better — both train the abs as the primary mover. The Assisted Sit-Up reduces the load so you can own the movement before going unassisted, while the Reverse Plank With Leg Lift needs no equipment and scales through leverage, tempo and reps. Choose based on your equipment and which movement you can progress consistently.
Can I do both the Assisted Sit-Up and the Reverse Plank With Leg Lift in the same program?
Yes, but usually not in the same session — they overlap heavily on the abs. A common setup is one as your main movement and the other on a second training day, or alternating them block by block.
Do the Assisted Sit-Up and the Reverse Plank With Leg Lift work the same muscles?
The primary muscle is the same: the abs. Supporting muscles differ slightly — hip flexors for the Assisted Sit-Up versus glutes, hamstrings and shoulders for the Reverse Plank With Leg Lift.
Track it in Tetsu
Tetsu tracks both movements separately, keeps your PRs per exercise, and tells you which one is actually progressing. Free to start.