Sit upright on the floor with your legs in front of you (Knees slightly bent) and hold a pair of dumbbells just above the ground with your arms extended at your sides. This is the starting position.
2. Flex your shoulders to raise your arms to shoulder height, hold the contraction for a moment and slowly lower only one arm back to the starting position while keeping the other arm at shoulder height.
3. Raise the arm once again to shoulder height and lower the other arm to the starting position.