Targets: Abs and obliques
- Sit on center of a step or bench with knees bent and feet flat on ground.
- Lean torso back, reaching toward ground behind you with right arm extended as you bring left arm overhead. (Reach right fingertips as close to ground as you can without brushing it; beginners can touch ground lightly for balance if necessary.)
- Maintaining reclined torso, switch hands so that left hand reaches behind you toward ground and right arm is overhead; that's 1 rep.
- Do 20 reps.