It is essential to slowly raise your heart rate and body temperature to avoid injuries, so whether you want to lose weight or want to develop your muscles, you need to warm up first , Fitness On Line has published. After warm-up, exercises can be performed to work the abdomen or lower back, Since the center of the body intervenes in almost all the movements that are performed while training and if you leave them for the last of the routine, you will feel a little more exhausted, however, training them first will be possible to devote all the energy to work The middle area of the body.