You can do a hamstring curl with or without gym equipment. Some variations involve standing, sitting on a chair, or lying face-down on the floor.

The hamstrings are a group of muscles in the back of your thigh. These muscles include:
- semitendinosus
- semimembranosus
- biceps femoris
These muscles function together to bend your knee and move your thigh back. This helps you walk, run, and jump.
The hamstring curl, also called a leg curl, is an exercise that strengthens the hamstrings. It involves bending your knees and moving your heels toward your butt while the rest of your body stays still.
Typically, the exercise is done on a leg curl machine. But if you don’t have gym equipment or a gym membership, you can do other types of hamstring curls at home.
These variations require nothing more than your body weight or simple equipment.