*Elasticized bands are marketed as Theraband. They are available in varying strengths (color-coded) to provide progressive resistance. Initially, a three or four foot length band – perhaps with the ends knotted together to improve grip – is sufficient for the exercise. To increase resistance as strength improves, the next density of Theraband can be purchased, or two or more bands of the original density can be used at once. Theraband can be obtained from a medical supply company. Similar elastic bands or cords are also available at many sporting goods stores where exercise equipment is sold.
**If it is too difficult to keep the elbow straight, the exercise can be done with the elbow bent. If you cannot grip with your hand, a loop can be tied at the end to slip your hand partially through the loop, leaving the thumb out to “catch” the loop during upward movement.