Connect one end of a resistance band to a D-ring on an ankle strap, and attach a handle to the other end. Do the same for a pair of resistance bands. Let arms hang in front of your thighs or hold the handles at side with arms slightly behind.
Raise handles upward at the side or raise forward at the front until upper arms are above horizontal. Lower and repeat.
Absolute height of movement may depend on range of motion. Raise should be limited to height achieved just before rightness is felt in shoulder capsule. Alternatively, height just above horizontal may be considered adequate. Elbows may be kept straight or sightly bent throughout movement.