A young girl has her arm examined by another lady, the lady speaks in details about her arm.
A young woman helps another woman perform an exercise with her arm and talks about the exercise.
One woman positions another woman to do some arm stretches.
A woman shows how to work your arms and chest by pushing against a wall.
A woman is holding her arms at 90 degrees and doing a exercise.
A girl stands with her arm at the wall while another points out parts.
An instructor uses her pupil as a demonstration about which areas of the body she will be instructing on.
A person is standing next to the wall  and another person is measuring the hand
A woman is showing another woman how to use a wall to do her arm and hand stratches
Woman in a uniform modeling the correct way to posture herself as instructed by another woman.