This exercise targets your triceps, which are the muscles on the back of your upper arms. Here's a step-by-step guide on how to perform it correctly: 1. Preparation: Choose a dumbbell of an appropriate weight for your fitness level and capabilities. Stand up straight with your feet shoulder-width apart, holding the dumbbell in one hand. You can perform this exercise while standing or sitting on a bench or chair, depending on your preference and comfort. 2. Starting Position: Raise the dumbbell overhead, fully extending your arm, with your palm facing forward and your elbow pointing upward. Ensure that your upper arm is close to your head and your elbow is stationary throughout the exercise. 3. Execution: While keeping your upper arm stationary, slowly lower the dumbbell behind your head by bending your elbow. Focus on maintaining control and a slow, controlled movement. Avoid any swinging or jerking motions. Lower the dumbbell until your forearm is parallel to the ground or slightly below. You should feel a stretch in your triceps. 4. Extension: From the bottom position, exhale and use your triceps to extend your arm back to the starting position. Focus on fully extending your elbow and squeezing your triceps at the top of the movement to maximize the muscle contraction. Keep your core engaged and maintain a stable position throughout the exercise. 5. Repeat: Complete the desired number of repetitions on one arm before switching to the other arm. Aim for a range of 8 to 12 repetitions per set. Start with a weight that allows you to maintain proper form and complete the desired repetitions comfortably. Important tips to keep in mind: Avoid using your shoulder or other muscle groups to lift the weight. The movement should be isolated to your triceps. Keep your upper arm and elbow stationary throughout the exercise to effectively target the triceps. Breathe naturally throughout the movement, exhaling during the extension phase and inhaling during the lowering phase. If you're new to this exercise or strength training in general, it's advisable to consult with a fitness professional to ensure proper form and technique. Remember to start with a weight that challenges you without compromising your form. As you become more comfortable with the exercise, you can gradually increase the weight to continue progressing. Have a great workout!