To a mass builder you'll find and biceps training however since this is still one joint isolation exercise you don't want to file on too much poundage working to have the means you have to cheese too much and you end up building your traps and lower back rather than isolated your biceps yes to do barbell curls affectively keep your upper body steady throughout the movement from the late under full control. theist any continuous tensions you raise and lower No2 Extreme Surge the weight when you for all the way to the top feel the biceps fully contract and at the bottom let your biceps muscles slowly stretch and extent just as with any isolation movements the key to success is control and concentration think about what the muscles are doing and how they feel rather than what's happening to the west the biomechanics for the crawl for instance you want to always go through the full range of motion some athletes have a Tennessee tendency to do short jerky kind of ranges well there are many things you do just this motion you want to build strength throughout that range of motion and been control as the resistance throughout the range motion you wannathrow the weight up because again what goes up must come down and then you deal with social force of gravity acceleration as well as a week itself you want to control that waste alternate dumbbell curls allow you to isolate and work each biceps muscle individualized as you curl with No2 Extreme Surge  one arm and then with the other concentrate on superseding your wrist said you live that is turning your hand so that the Sun Goes outward and downward this gives you atonal peak contraction of the biceps as the top of the moved you can do dumbbell curls by alternating first one arm and then the other which is a very strict form of the movement or you can curl those farm simultaneously for additional strictness try doing dumbbell curl sitting on an incline best however no matter what variation you choose remember to concentrate on controlling the weight at all times performing a smooth continuous movement and keeping the mind in the muscle think about what the biceps are doing rather than the waitress dumbbell .

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