Most residential community or corporate office building fitness centers will have some variation of a leg extension machine. Generally, most of us are rather tight in the hip flexors and quads and would probably benefit more from doing hip hinges or squats, rather than doing countless repetitions on this machine. However, every individual is different with different body types with their own personal goals in mind. If your goal is to build size and strength (just in the quad) than this exercise could be perfect for you. However, are you setting up the machine properly and performing the repetitions in the correct manner? Found out how in this video!