QuadsBeginnerIsolation

Leg Extension

Seated knee extension machine.

Leg Extension: correct exercise technique

Benefits

  • Isolates the quads
  • Good finisher after squats

How to do it

  1. Knee joint in line with the machine pivot
  2. Extend fully and squeeze
  3. Lower slowly

Common mistakes

  • Kicking with momentum
  • Lifting the hips off the seat

Starting prescription

sets
3
reps
12–15
Rest
60 s
Reps in reserve
1
Load step
2.5 kg

Safety and limitations

  • Knee · Modify
    With a moderate knee limitation: lighter load, shorter range, stop if it hurts.
  • Knee · Avoid
    Avoid with a severe or worse knee limitation; use an easier alternative.

Health & safety

Alternatives

Similar

Programs that use it

4×/week12 weeks

Upper / Lower 4×

Four sessions a week alternating upper and lower body, 12 weeks in two phases.

IntermediateBuild muscle75 min

Your first workout in under three minutes.

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