What matters on this model
- gym80 source: targets the thigh muscles.
- gym80 source: uses a foot support or platform to fix the position.
- gym80 source: has a range-of-motion adjustment.
- gym80 source: targets the back.
- gym80 source: has a source-listed target muscle focus.
Why use it
Use the Leg Curl And Leg Extension Combo for isolated quadriceps work, controlled knee extension, and measurable loading without turning the set into a hip or torso movement. Treat the listed adjustments as part of the exercise, not as optional details.
Muscles worked
- Main load: Front thigh.
- Stabilization: trunk muscles help hold position.
- Should not hurt: joints or lower back. If they do, reduce load and check setup.
How to set up
- For the Leg Curl And Leg Extension Combo, first check its source-listed detail: uses a foot support or platform to fix the position.
- Sit deep in the seat and keep the pelvis against the pad.
- Line the knee up with the machine lever axis.
- Place the roller on the lower shin, not on the foot.
- Choose a range where the knee extends smoothly.
How to perform
- On the Leg Curl And Leg Extension Combo, move smoothly through this model's working path.
- Pause at the top without snapping into lockout.
- Lower the roller slowly while staying against the backrest.
- End the set if the pelvis starts lifting from the seat.
Common mistakes
- Putting the roller on the foot instead of the shin.
- Letting the knee sit away from the lever axis.
- Kicking the weight or slamming into the top position.
- Using a load that lifts the pelvis from the seat.
- Ignoring this model-specific detail: uses a foot support or platform to fix the position.
Technique video
Sources: gym80.de product page for 5013; gym80.de image saved locally; video embedded from the original YouTube source. PDF data: page 48, printed page 46.