Single Session
Use the exercise’s set, repetition, tempo, and rest ranges during one workout.
← Back to Exercise Library
Combined Thumbnailthumbnail.jpgImage available Enabled Enabled
Loaded
Leg Extension Machine
Legs · Machine · Primary muscle: Quadriceps
Active
Difficulty2/5
Repetitions1–50
Sets1–10
Tempo2-1-3
Rest75s
Technique references
Exercise media
Movement video
Video coming soon.
No playable video is published for this exercise yet. The exercise remains fully usable without it.
Step by step
Instructions
- Adjust the seat and back pad so your knees align with the machine's pivot point.
- Position the lower-leg pad just above your ankles and sit with your back firmly supported.
- Grip the side handles if available and keep your hips and torso stable.
- Begin with your knees bent in the machine's safe starting position.
- Extend both knees smoothly to raise the padded lever until your legs approach straight without aggressive lockout.
- Pause briefly, then lower the weight slowly to the starting position and repeat.
Muscle focus
Muscles
Primary: Quadriceps
Coaching
Tips
- Align your knee joints carefully with the machine pivot before beginning.
- Keep the roller pad above your ankles rather than on your feet.
- Maintain contact with the back pad and keep your hips seated throughout each repetition.
- Use a load that lets you control the slower lowering phase.
Technique check
Common mistakes
- Using an incorrect seat, pivot, or lower-leg pad adjustment.
- Using excessive weight and kicking the lever upward.
- Aggressively locking the knees at the top.
- Lifting the hips away from the seat.
- Moving too quickly through the repetition.
- Dropping the weight during the lowering phase.
- Using an unnecessarily shortened range of motion.
Approved settings
Workout modes
Throughout Day
- Goal type
- Total repetitions
- Default target
- 50 repetitions
- Minimum entry
- 1 repetition
- Daily reset
- Yes