6. Breaking the (Wash)Board
Targets shoulders, abs, butt, and legs
Holding a dumbbell in each hand, stand with left foot on step, knee slightly bent, and right leg extended behind you, toes on ground.
Lift dumbbells in front of you to shoulder level, arms straight and palms facing each other.
Bring right knee in toward chest as you stand up on step with left leg, lowering arms to either side of right knee.
Step back with right leg to start position, raising dumbbells in front of you again.
Do 10 reps; switch sides and repeat.