1)   WorkPause 1.4.1
The WorkPause utility can help you prevent the tiredness, back pain, eye strain, repetitive strain injury (RSI) or other illnesses provoked by long uninterrupted work with computers, by reminding you to take breaks at regular intervals.
WorkPause, RSI, OOS, break reminder, repetitive strain injury, carpal tunnel syndrome, tendinitis, bursitis, break, praven3,

 2)   Albion StopNow! 3.3
Taking regular breaks to avoid RSI problems can be hard without help. Albion StopNow! monitors your computer and gives you a discreet reminder if it finds that you have worked for too long without taking that necessary break.
RSI, Repetitive Strain Injury, Repetitive Stress Injury, CTS, OOS, CTD, break reminder,

 3)   Stress Buster 1.2.0
Ergonomic software, or break reminder software, designed to prevent Repetitive Strain Injury (RSI) and other computer related health problems. It runs quietly in the background, monitoring your activity and reminding you to take regular breaks.
ergonomic, ergonomics, rsi prevention, break reminder, timer, back pain, wrist pain, neck pain, shoulder pain, repetitive strain injury,