When you go to the gym one of your goals should be to pick the exercises that provide the most bang for your buck so to speak. You should be picking the exercises that produce the best results in the shortest amount of time. This is referred to as training economy. Compound free weight movements provide the most return for your time in the gym. Moves like squats, deadlifts, cleans, snatches, presses, rows, and pullups all allow you to move heavy weights over long distances. These exercises are going to burn more calories and drive the release of more hormones because they involve more muscle groups and place a greater demand on the body. So if you want to get the greatest return for your time in the gym step away from the bicep curls and machines and start to throw in some sets of squats and deadlifts.
Workout of the Day
15 sec db snatch
15 sec rest
15 sec db snatch + 15 sec pushups
15 sec rest
15 sec db snatch + 15 sec pushups + 15 sec db swing
rest 1 min
repeat for 30 sec, 45 sec, and 1 min