Athletes who have to run and perform sudden vertical jumps during sports matches, such as basketball and volleyball sportsmen and women, are invited to visit the online Mini Gym site and search and browse the diagrams that show details of how improvement in performance can be achieved. Mini Gym suggests that the Isokinetic principle of the vertical jumps development routine to enable sportsmen to jump higher and faster has proven itself by not only helping to develop greater strength, but also to rehabilitate injuries more quickly and easily. Many sportsmen are utilizing the Mini Gym exercise system for producing easier and higher vertical jumps to great effect. Mini Gym offers the equipment and the exercise instructions for improving vertical jumps for athletes who need to be able to perform spontaneous vertical jumps on a basketball or a volleyball court. It is now almost 40 years since the first Mini Gym was introduced and 50,000 units and accessories have been sold worldwide. Recently, Mini Gym installed a strain gauge device which accurately measures the range of motion of vertical jumps for therapy evaluation purposes.

The Isokinetic exercises developed for improved and more effortless vertical jumps provided with the help of the Mini Gym can also be used for rehabilitation after sprains and more severe injuries and the strain gauge's accurate measuring documentation helps athletes with insurance claims and the justification of rehabilitation exercises. Before every match, athletes playing basketball or volleyball need to warm up leg muscles so that vertical jumps do not put strain on muscles and cause damage, and the workout regimen produced by Mini Gym is of huge benefit. Sportspersons wishing to use the best possible equipment and exercises to improve height and speed of their vertical jumps and to develop muscle strength, quicker reflexes and fitness to ensure less chance of injury will be delighted with Mini Gym, accessories and instructions for vertical jump routines.

Mini Gym advises that regular routines for better vertical jumps will keep leg and arm muscles in a flexible condition and should help extend the life of an athletic career with fewer of the usual injuries and a speedier recovery when they do occur. Mini Gym explains that the resistance provided by weight and friction brakes have been the conventional means of Isotonically loading a contracting muscle to exercise. Because of skeletal leverage, in most range of motion movements, the middle one-third range is normally twice as strong as the weakest third of the range. Mini Gym's exercise routine for improving vertical jumps ensures that the load is limited to the greatest amount that can be moved at the weakest joint angle. Mini Gym advises that this tends to let athletes performing vertical jumps move the weights speedily through the range. Mini Gym indicates that there is no movement in an Isometric contraction, as the muscles contract against an immovable resistance. Resistance becomes a function of the force applied and the muscles develop near maximum tension with no discernable joint capacity of the muscles in a static position.