To many people, Bicep Curls might sound like the most common and basic exercise. However, this is still one of the best exercises for isolating and maximising strength in the biceps brachii. If you're looking to bulk your arms, or make them leaner and stronger, then you'll want to include this drill in your upper body workout. Curls also work your forearms and burn an enormous amount of calories. You won't generate as much power when doing this exercise in standing position, but when doing it in this stance, you'll recruit more muscles such as your shoulders, abdominals and upper/lower back. This is another exercise that is beneficial for gaining definition on the front of the body. Bicep curls are a versatile routine that can also be done with kettlebells and resistance bands.