A combined weight-block machine (Graviton) is a multifunctional machine with the function of increasing/decreasing the athlete’s weight. The machine is necessary for the training of athletes in various sports, it is very effective for strengthening the abdominal muscles, chest muscles, back muscles, triceps, and biceps. The machine’s main advantage is the ability to create an additional load when exercising with your own weight and a counterbalance to lighten an athlete’s weight with an insufficient fitness level. The machine design includes a horizontal bar, bars, counterbalance, and a lower block connected to a customizable resistance source. The machine is equally effective for training, both for professionals who do not have enough load of their own weight and for beginners who do not know how to perform pull-ups and push-ups on the uneven bars.