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Upper Arms
Secondary muscles
Sit on a bench with your back straight and feet flat on the ground.
Hold a dumbbell with an underhand grip and extend your arm straight up overhead.
Lower the dumbbell behind your head by bending your elbow, keeping your upper arm stationary.
Pause for a moment, then extend your arm back up to the starting position.
Repeat for the desired number of repetitions, then switch arms.
Sit on a bench with your back straight and feet flat on the ground. Hold a dumbbell with an underhand grip and extend your arm straight up overhead. Lower the dumbbell behind your head by bending your elbow, keeping your upper arm stationary. Pause for a moment, then extend your arm back up to the starting position. Repeat for the desired number of repetitions, then switch arms.