Start with the proper form – back flush against the back rest, and shins against the leg pads. Your knees should be lined up at a 90 degree angle.
After selecting a weight, simply grip the hand bars and extend your legs outward until they are straight, without locking your knees or arching your back.
Then, exhale and lower the weight back to starting position.
It is best to start with a lighter weight and more repetitions. If you’re just starting out, don’t go above 3 sets of 12 reps.