Leg Extension
Machine leg extensions to isolate the quads. It works mainly the quads.
Flawless ranks it by lifetime volume: Gold, the third of eight ranks, starts at 25,000 kg.
How to do Leg Extension
- Sit with your knees in line with the machine's pivot and the pad resting just above your ankles; hold the handles.
- Extend the knees until the legs are completely straight and squeeze the quads at the top for a second.
- Lower the weight slowly over 2–3 seconds; the way down counts as much as the way up.
- Keep the hips and back on the seat; if you have to lift them to finish, go lighter.
These are the same steps you see in the exercise guide in the Flawless app.
Muscles worked
| Role | Muscle | Anatomical name |
|---|---|---|
| Primary | Quads | Quadriceps femoris |
Muscle data from StrengthLog.
Why do it
- Quads in isolation, rectus femoris included
- Volume without loading the spine
- Useful when the rest of you is fried
How Flawless ranks Leg Extension
| Rank | Total volume |
|---|---|
| Bronze | start |
| Silver | 5,000 kg |
| Gold | 25,000 kg |
| Platinum | 50,000 kg |
| Diamond | 100,000 kg |
| Obsidian | 150,000 kg |
| Painite | 250,000 kg |
| Antimatter | 1,000,000 kg |
Flawless ranks Leg Extension by lifetime volume: the weight × reps of every set you have logged, added up. The ladder is the same for everyone, because it measures work done rather than strength relative to bodyweight. The rank updates after every workout.
Similar exercises
Questions
What muscles does Leg Extension work?
It works mainly the quads.
How do you do Leg Extension?
Sit with your knees in line with the machine's pivot and the pad resting just above your ankles; hold the handles. Extend the knees until the legs are completely straight and squeeze the quads at the top for a second. Lower the weight slowly over 2–3 seconds; the way down counts as much as the way up. Keep the hips and back on the seat; if you have to lift them to finish, go lighter.
How does Flawless rank Leg Extension?
By lifetime volume: the weight × reps of every set you have logged, added up. Gold starts at 25,000 kg and Diamond at 100,000 kg, the same for everyone.
Try it free
Free on Google Play and the App Store. The whole log is free; PRO is optional.