subject: Skinny Guys - Find Out How To Build Muscle [print this page] So make sure that you are working out properly and working to build all those muscles. The real key is hitting all these muscle groups once per week with an intense workout. You need to ensure that it is intense but it doesn't have to be a marathon workout. If you add enough intensity you should be in and out of the gym within 45 minutes. Once you get more advanced you can even do it quicker, because you can add super sets and tri sets to your routine
