A leg curl machine is a useful part of any home or commercial gym. These machines allow you to do leg curls, the most common exercise used to strengthen the hamstrings, the muscles along the back of your thighs. Many people fail to exercise their hamstrings as they are easily overlooked, but hamstring exersize is a crucial part of overall leg strength. The leg curl machine, or leg extension machine, allows you to effectively work this muscle.
After selecting the desired weight, leg curls can be performed on a leg curl machine in either a lying, sitting, or standing position. After several reps, you will soon feel the burn in your hamstrings and know that you are working your way to more powerful legs. As with any workout equipment, in order to avoid injury you must first be properly trained in its usage before attempting to use a leg curl machine.