Neck work, split squats and dips sometimes include unfavorable joint positions that can put you at risk for serious injury. Keep these for bigger exercises such as rows, presses, squats, and deads.NO2 Core Set realistic short-term goals. You might want to be able to lift a large amount in only a short period of time, but this is not a realistic goal. If you move too quickly or lift too much, you can injure yourself. Once you learn what you can lift in the beginning, set reachable goals for the future. Don't be surprised if you occasionally blow past short-term goals. With this, you can feel encouraged and more than ready for that next workout session.NO2 Core When attempting to build muscle, you must eat well.
http://www.supplements4tips.com/no2-core/