This is an exercise for shoulder, chest and forearm strengthening.
1.Stand with your feet shoulder width apart, abs drawn in and knees slightly bent.
2.Grasp a dumbbell in each hand, with your palm facing down.
3.Start with the dumbbell at waist height.
4.Raise your left arm, keeping your elbow slightly bent and your arm straight, to in line with your shoulder.
5.Pause for a moment and with a controlled motion lower your arm to back to the starting position at your waist.
6.Repeat with your right arm.
Do not perform this exercise if you have any shoulder, elbow or wrist pain.
Secondary: chest, forearm