Pronation Action with PencilViolin Bow Technique Martelé, Collé, Hookstroke & Upbow staccato Bow-Hand PronationPronation is a way to apply pressure to the bow so that the bowhair grips the string.Rotate the forearm in an anti-clockwise direction from the elbo...New members register here for VBT+Current members please Login Username Password Remember Me Forgot Password