Sit on the seat with feet placed under the pegs. Lower and raise the upper body.
Exercise 2
Sit on the seat with feet placed under the pegs. Lower the upper body and raise it swinging to one side and then the other.
Exercise 3
Sit on the seat with feet placed under the pegs. Lower the upper body and raise it again while rotating the upper body to one side. Repeat to the other side.
Exercise 4
Lying down on the seat, facing the ground. Grip the pegs and raise your legs.