Compound exercises work multiple muscle groups at the same time. For example squat is a compound exercise because it engages the quadriceps glutes and calves. A plank is another compound exercise that engages your abs quads and glutes among other muscles. The biggest benefit of compound exercises is that it allows you to use your time efficiently. If time is your problem compound exercises can be the best option to stay fit. The best compound exercises help you build strength and tone your whole body. Compound exercises also help me lose weight by burning more calories and encouraging muscle growth.