There are benefits of working out muscles in a certain order. Training large muscle groups first when your energy level is the highest usually works best. These muscles include thighs, chest and back. The smaller muscles like forearms, biceps and triceps should be saved for last. {relatedarticles}Strengthening your muscles through resistance training offers many benefits and may make it easier to do your daily routine. Want to save time and condense your workout? Then choose exercises that work more than one muscle at once, a principle of functional fitness, which emulates real-life muscle use and trains muscles for everyday movement. For example, doing leg extensions work only the quadriceps, whereas squats work calves, hamstrings and quads. Try push-ups instead of bicep curls - you'll not only work biceps, but also shoulder and back muscles.