Knee/Hip Raise On Parallel Bars

How to do it

Position your body on the vertical leg raise bench so that your forearms are resting on the pads next to the torso and holding on to the handles. Your arms will be bent at a 90 degree angle.
The torso should be straight with the lower back pressed against the pad of the machine and the legs extended pointing towards the floor. This will be your starting position.
Now as you breathe out, lift your legs up as you keep them extended. Continue this movement until your legs are roughly parallel to the floor and then hold the contraction for a second. Tip: Do not use any momentum or swinging as you perform this exercise.
Slowly go back to the starting position as you breathe in.
Repeat for the recommended amount of repetitions.

What muscles does the Knee/Hip Raise On Parallel Bars work?: Mainly the abs.
What equipment do I need?: Other equipment.
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.