Increase Your Ability and Strength for Better Performance on and off the Slopes with Pro Fitter 3D Cross Trainer! Pro Fitter is challenging yet fun and easy to learn! Since 1985, athletes and medical experts world wide have depended on Pro Fitter for maximizing sports performance. If you and your family want to maximize an active lifestyle, then get these proven benefits from the Pro Fitter 3D Cross trainer: • Enhance functional core strength and stability. • Maximize functional leg strength and power. • Obtain faster and more precise reaction skills. • Develop effective upper and lower body strength programs. • Improve cardiovascular endurance. • Improve proprioception and reduce the risk of sports injuries.