The Ultimate Lunch-Hour Workout

Door Hinge with Biceps Curl

Targets: Upper back, shoulders, and biceps

• Holding a dumbbell in each hand, stand with feet hip-width apart, back flush against a wall, and bend elbows 90 degrees, palms up and in front of body.
• Keeping elbows tucked into waist and backs of arms on wall, bring hands out to sides as far as you can. Lower weights to thighs.
• Curl them back to 90 degrees; return hands to start.
• Do 15 reps.

Target tip: Squeeze your shoulder blades together behind you without arching your back.

See a video of this move