- Laurence Libin
Practice of design to optimize safety, comfort, and efficiency in the interaction between player and instrument. Many instruments are physically awkward to play and place unusual demands on the human body. Long periods of practising and performing under pressure exacerbate physical problems caused by unnatural postures, repetitive stresses on joints, extreme muscle tension, and displacement of fingers, shoulders, neck, and spine. As a result, especially when poorly trained, players of certain instruments can develop calluses, bruises, misaligned teeth, tendonitis, carpal tunnel syndrome, and more serious injuries that, over time, impair health and performance ability....