I was introduced to the Trak System in October 2009 and have been encouraged by the limitless applications and uses within my clinic. The primary focus within my clinic being post surgical rehabilitation of the upper extremity, I have seen a significant improvement in strength, active range of motion as well as functional endurance with the application of the Trak handles. This product has the potential to limit re-injury to the wrist, elbow and shoulder due to it 3 dimensional mobility when used in resistive training. This freedom of movement has also added to my own training regiment by allowing continuous motion through many planes, specifically the shoulder, bicep and triceps. I feel strongly that this product would be a smart alternative for those interested in more definition, reduction in body fat, increase muscle tone as well as increased endurance. I would recommend this product to those interested in attaining a higher degree of fitness, and or for those whose time is limited and can benefit from a device that can be used at home, or on the road to maintain physical fitness.