Rotary Torso:  Muscles worked: Exteral Obliques.

Suggested resistance settings 2-3.

Sit on bench seat with back straight.  Grasp handles,

Twist entire upper torso side to side (not just arms) in

a smooth, quick motion. Do not jerk.

Move within a comfortable range, not the full

distance right-and-left of the machine.

Start slowly, and build on your own unique

physical capabilities.