Exercise Advice: Grab a dumbbell with your right hand and position your left knee and hand onto a flat bench. Keep your arm tucked into your side at a 90 degree angle. Slowly extend your arm out while bringing the dumbbell up and keeping your elbow in a fixed position so you can place maximum tension on your triceps muscle. At full extension of the movement, make sure that your arm is parallel to the ground. It’s important to keep your shoulder stationary throughout the entire exercise. Slowly lower the dumbbell back to the starting position. Repeat for 8-12 repetitions and then switch to your opposite arm.