part of a conditioning workout.
for me, this is the default exercise and one everyone should master first. first, make sure your rope is the correct length: it should go up to your armpits. this means you may have to wrap it around your hands, loosely, a few times to make this happen. too short or too long and the exercise is too difficult.
once you have the length for the rope, stand up and hold a rope handle in each hand. your hands should be at your sides, roughly at hip level. keep your knees soft, but perform the exercise using your ankles (this is not a jump from your knees!) 