TETSUAssisted Prone Hamstring vs Machine Kneeling Leg Curl
The Assisted Prone Hamstring and the Machine Kneeling Leg Curl both train the hamstrings as their primary muscle. The Assisted Prone Hamstring is an assisted movement while the Machine Kneeling Leg Curl uses a machine. Here is how they compare and when to pick each.
Side-by-side comparison
| Assisted Prone Hamstring | Machine Kneeling Leg Curl | |
|---|---|---|
| Primary muscle | hamstrings | hamstrings |
| Body part | upper legs | upper legs |
| Supporting muscles | glutes and lower back | glutes |
| Equipment | assisted | machine |
| Steps in our guide | 5 | 7 |
How each one starts
Assisted Prone Hamstring — first steps
- Lie face down on a mat or bench with your legs fully extended.
- Have a partner or use a resistance band to secure your ankles.
Machine Kneeling Leg Curl — first steps
- Adjust the machine to fit your body and select the desired weight.
- Kneel on the machine facing downwards, with your knees resting on the pad and your feet secured under the footpads.
Full step-by-step guides are linked below.
Which should you choose?
The Assisted Prone Hamstring reduces the load so you can own the movement before going unassisted. The Machine Kneeling Leg Curl fixes the movement path so you can push close to failure with less skill demand. 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 hamstrings adapting.
Full form guides
Common questions
Is the Assisted Prone Hamstring better than the Machine Kneeling Leg Curl?
Neither is universally better — both train the hamstrings as the primary mover. The Assisted Prone Hamstring reduces the load so you can own the movement before going unassisted, while the Machine Kneeling Leg Curl fixes the movement path so you can push close to failure with less skill demand. Choose based on your equipment and which movement you can progress consistently.
Can I do both the Assisted Prone Hamstring and the Machine Kneeling Leg Curl in the same program?
Yes, but usually not in the same session — they overlap heavily on the hamstrings. 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 Prone Hamstring and the Machine Kneeling Leg Curl work the same muscles?
The primary muscle is the same: the hamstrings. Supporting muscles differ slightly — glutes and lower back for the Assisted Prone Hamstring versus glutes for the Machine Kneeling Leg Curl.
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.