Take the one end of the theraband in your one hand and tie the other end around a solid object.

Stand with your feet apart and your other arm at your side.

Now pull the theraband, moving only the forearm by extending your elbow. Your arm should form a straight line, parallel with your body.

Return to starting position and repeat.

- Perform the movement in a slow, controlled fashion throughout the exercise; don't allow the theraband to jerk back into position.

- Try to keep your upper arm and the rest of your body as still as possible.