Rehab & RSI: For those in rehab or suffering from repetitive strain injuries, the gyroscopic resistance aids in pain relief, prevention, and rehabilitation of carpal tunnel, arthritis, tendonitis, tennis elbow, etc. Produces an exceptional amount of resistance with very little impact. The gyro continues to help many people recover from extensive surgeries that would have otherwise left them partially handicapped or impaired. In many cases, the gyro has helped people completely avoid having to undergo extensive and costly surgery altogether.