Pulaski County, AR is in the central part of Arkansas in the west south central United States: Closest City to the Center of Pulaski County, AR: Cammack Village, Arkansas: Cities in Pulaski County, AR:
Positioning the Body for Arm Curls. Mike Harrington / Getty Images. The arm curl or biceps curl is a highly recognizable weight training exercise that utilizes dumbbells or barbells, or even kettlebells, to work the muscles of the upper arm, the biceps, and to a lesser extent, the lower brachialis and brachioradialis.
Wrist curls strengthen the muscles of the forearms. The elbow joint, showing the ends of the radius and ulna. The brachioradialis is a muscle in the forearm that flexes the arm at the elbow. Any part of the forearm is at risk of injury in a fall.