Leg Extension
QuadricepsMachineBeginner
A simple quad isolation move that becomes excellent when you stop swinging it.
Muscle worked
Quadriceps
Equipment
Machine
Difficulty
Beginner
Time per set
30-60s
How to perform
Step by step, every rep
01
Adjust the machine
Line the machine pivot with your knee joint and set the pad just above the ankles.
02
Lock in your hips
Sit tall with hips glued to the seat. Hold the handles to stop your body from lifting.
03
Extend and squeeze
Lift until the knees are nearly straight, then squeeze the quads hard for a moment.
04
Lower slowly
Control the weight back down without letting the stack slam.
Common mistakes
Avoid these
✕
Kicking the weight up
Momentum replaces quad tension. Fix: Pause at the top and lower for 2 seconds.
✕
Seat set wrong
Bad alignment can irritate the knees. Fix: Make the knee line up with the machine pivot before loading.
✕
Going too heavy
You shorten the range and lose the squeeze. Fix: Use a load you can fully control for every rep.
Progressions
Scale it up or down
Make it easier
- Shorter range with light weight
- Single-leg bodyweight terminal knee extensions
- Wall sit for quad endurance
Make it harder
- Single-leg leg extension
- 1.5 rep leg extension
- Two-second peak squeeze each rep
How to program it
Sets, reps, rest
| Goal | Sets | Reps | Rest | Load |
|---|---|---|---|---|
| Build Strength | 3-4 | 6-8 | 90-120s | Heavy enough to need focus, light enough to control. |
| Build Muscle | 3-4 | 8-15 | 60-90s | Moderate. Last 2 reps should burn without breaking form. |
| Build Endurance | 2-3 | 15-25 | 45-60s | Lighter. Smooth tempo and constant tension. |
Want this exercise programmed into a full plan?
Learning the form is step one. Fitting it into a plan built around your body, your equipment, your schedule and your food is what actually changes things. Fuel your sessions with enough protein using the Indian Food Database.
Get my personalised plan → Starting at ₹199. Plan delivered to your WhatsApp in 24 hours.Related exercises
