The dumbell curl with wrist proniation is an advanced form of the
standing dumbell curl which is used to add extra "burn" to the
bicep muscle.
It is done by doing a
standing dumbell curl but as the arm reaches the point of contraction twist the wrist so that the
pinky finger faces slightly upward and is slightly higher than the thumb.
This movement isolates the belly of the bicep which is the part on the inner arm and makes up the bulk of the bicep.
As with any exercise please make sure to follow the
weight lifting safety tips.