maratoolSingle-Leg Leg Extension
How to do the single-leg leg extension
- Seat yourself in the machine and adjust it so that you are positioned properly. The pad should be against the lower part of the shin but not in contact with the ankle. Adjust the seat so that the pivot point is in line with your knee. Select a weight appropriate for your abilities.
- Maintaining good posture, fully extend one leg, pausing at the top of the motion.
- Return to the starting position without letting the weight stop, keeping tension on the muscle.
- Repeat for the desired number of repetitions.
Muscles worked
The prime movers are the quadriceps across the front of the thigh, which straighten the knee and, just as importantly, control it on the way back down.
Every exercise for:Quadriceps
How this movement works
One joint moves, and it moves the load away from the body. With nothing recruited to assist, the target muscle reaches its own limit rather than the limit of the weakest link in a chain — which makes this useful for adding volume after the heavy compound work, not for opening a session.
It is filed under strength: produce force against resistance for a countable number of repetitions, and progress the resistance over time.
What you need
The machine fixes the path, removing the balance demand and letting you train close to failure without a spotter. The cost is the stabilising work a free weight would have made you do.
Every exercise using:Machine
These train the quadriceps too, using equipment this one does not:
- Smith Machine Squatssmith machine
- Snatchbarbell
- Split Jumpbody only
- Split Squat with Dumbbellsdumbbell
- Squats with Exercise Bandsband
Difficulty
Listed at beginner level: the pattern is simple enough to pick up without coaching, and a position that goes wrong mid-set is obvious enough to correct on the next repetition.
Of the 173 quadriceps exercises in this database, 70 are listed at beginner level.
Photos: free-exercise-db — public domain (Unlicense) Full attribution →
ⓘ Informational only — not a substitute for professional fitness or medical advice.