Difficulty in making precise finger movements will necessitate enlarged keypads with rests, key-guards or delayed activation.
Selection of key operating pressure may be critical to the avoidance of muscular spasm. Both audible and displayed key feedback will be necessary to confirm correct actuation and avoidance of unwanted repeats. Speech-input keying may be desirable, but some conditions giving rise to hand tremor also cause hesitancy in speech.
| Previous | Contents | Next |