Biceps Curl with Overhead Extension using Dumbbells on Stability Ball

· Grasp a dumbbell in each hand with palms facing up. · Kneel on a Stability Ball, drawing your abs in and keeping your back straight. · Raise one arm up over your shoulder and keep your other arm curled. · Bend your raised arm back as if performing a triceps extension while lowering your other arm and curling it back. · Return to starting position and repeat arms.

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