Inverse thread: It works the extensores of the fist, long radial extensor of carpo, short radial extensor of carpo, extensor of the fingers. Moreover, it acts on the braquiorradial, the brachial one and in lesser intensity, on the biceps of the arm. It is in foot, legs slightly moved away, extended arms, hands in pronation, to inspire and to bend the antebraos, to die in the end of the movement. Tips for Performance: Position for movements in foot: The correct position is of great importance to reach the maximum efetivao of the training. For movements in foot, you it must take ' ' position padro' ' : the feet moved away for more or less the width of the shoulders, knees lightly bent, ndegas lightly stop backwards, with the inferior part of the coasts lightly hooped and intended, erect trunk, lowered shoulders and stop backwards, chest for are (high) with all the return of the rigidly stabilized shoulders, erect head (neutral) and eyes directly for front. Alignment of the elbows: In the majority of the thread exercises, it keeps the elbows directly pointing with respect to low, throughout the sides of its body or only lightly to the front of this. Credit: Boy Scouts of America-2011. It grasps in the bar in a distance only a little bigger that of the shoulders, where the hands hold of course. This lines up appropriately the tendes guided laterally of the long face of the biceps and help to stabilize the shoulder and to prevent injuries. It keeps the elbows against the body, not to the front or for it are during the movement, to focus the load in the biceps and in such a way to minimize the envolvement of the previous deltoid in the tendes in the area of the elbow how much in the one of the shoulder. Position for seated movements: Same position for the trunk, arms and shoulders if applies for the movements also seated.