
Leg Extension
Quads


Legs / Advanced / Compound (multi-joint)
A barbell exercise for the quads, with the calves, glutes and hamstrings assisting.
Loads the knee. Use a load you can control and skip it if it causes pain.
Why it hurts: The knee bends fully while the body leans back, placing very high load on the patellar tendon.
✓ Instead: Start with bodyweight, hold onto a support, and use a short range at first. Skip it if you have knee pain.
How specific this exercise is to each movement.
Photos and instructions: free-exercise-db (github.com/yuhonas/free-exercise-db), public domain.