Leg extension The leg extension machine will look like this, and is usually next to the leg curl machine (Picture: Getty Images/iStockphoto) Muscles used: Quadriceps (front of thighs).

The Syedee Leg Extension and Curl Machine is an incredibly popular pick now that Walmart is selling it for just $203. This deep-cutting deal may not last, so if you want it you should buy now.

The Syedee Leg Extension and Curl Machine is just $203 right now. This Walmart bestseller is usually $1,100, but it's currently sporting an 82% discount. It has over 330 five-star ratings from ...

Exercise machines can play a role in a strength-training program, but some are more beneficial than others. Here are the best and worst machines, according to trainers.

The leg curl machine is one of the best strength builders for your hamstrings. Here at 5 leg curl alternatives to do when you don't have access to a machine.

A prone leg curl targets the hamstrings, for example. If you’re doing it at home, try using sliders or a stability ball. Or you can lay on the floor and hold a weight between your feet.