Seated Leg Curl

How to do it

Adjust the machine lever to fit your height and sit on the machine with your back against the back support pad.
Place the back of lower leg on top of padded lever (just a few inches under the calves) and secure the lap pad against your thighs, just above the knees. Then grasp the side handles on the machine as you point your toes straight (or you can also use any of the other two stances) and ensure that the legs are fully straight right in front of you. This will be your starting position.
As you exhale, pull the machine lever as far as possible to the back of your thighs by flexing at the knees. Keep your torso stationary at all times. Hold the contracted position for a second.
Slowly return to the starting position as you breathe in.
Repeat for the recommended amount of repetitions.

What muscles does the Seated Leg Curl work?: Mainly the hamstrings.
What equipment do I need?: Machine.
Is it good for beginners?: Yes, it is rated beginner level.
How do I track progress on it?: Log each set and beat the weight or reps from last time. Liftrung shows your last set beside the next one and estimates your one-rep max from your sets.

Exercise descriptions: free-exercise-db, public domain.