Get it Done Fitness

Russian twist:

Instructions: Sit on a decline bench, with your legs firmly under the pads. Lean back slightly, so that your thighs and torso form a 90° angle. Extend your arms in front of you, so that they form a 90° with your torso, and clasp your hands together. Keeping your back straight, your chest out and your arms straight, make a semi-circle with your arms. With your abs flexed, move as far as you can from right to left and left to right, and do the motion as quickly as you can without sacrificing proper form or range of motion. Work your way up to 60 seconds of continuous movement.