
Starting position:
Start standing up with dumbbells in each hand, your back straight and feet hip-width apart. Your arms should be relaxed, pointing down. Your knees should be slightly bent, your abs contracted, and your shoulders down.
Steps:
• Bend one arm at the elbow, bringing the dumbbell up to your shoulder. Your upper arm should remain motionless during this movement.
• Bring the dumbbell back down until your arm is in its original relaxed position.
• Repeat, switching arms.
Image and text: Creative Commons Attribution Share Alike 4, via wger. Original entry