Exerfly equipment employs flywheel technology, which mimics natural movements during sports in a way that conventional weights simply can't, allowing athletes and fitness enthusiasts of all levels to get more out of their fitness programs. Exerfly's speed, constant resistance, and safe overloading is excellent for adapting the body for eccentric overload, stiffness, force absorption, isometric phases and transfer to elastic concentric movements. Exerfly equipment uses flywheel momentum to create constant resistance throughout the range of your exercise. The momentum created in spinning the flywheel returns a resistance that is both more constant and more demanding than with conventional weights, engaging and building strength in muscles, tendons and ligaments over the whole range of motion. With Exerfly flywheel training, resistance is a function of both the inertia of the flywheel itself, and the input force. Training sessions can thus be adapted to the needs and capabilities of the individual athlete, whether this be intense, intermediate or recovery.