endovex You need specific nutrients to rebuild any damaged muscle fibers. Protein shakes are a great way to supplement your diet but also ensure you're getting protein to rebuild your muscle fibers after a workout. Even though you may want to do your reps and sets as fast as you possibly can, you should resist doing this. You will achieve better results by slowly doing each exercise's movements, even if you need to lighten the weight to do so. A good goal is to try to achieve five or ten seconds for every half of .