
Sit down and grasp the edge of the bench and raise legs to a position just lower than parallel to the. Russian Twists strengthen the oblique abdominal muscles on the sides of your stomach. Homgrace Sit Up Bench Decline Crunch Abdominal Board Exercise Fitness Workout Bench For Home Office Gym Yo Bench Press Workout Bench Workout Bench Ab Workout A sit-up bench is designed...