Recently, playing sports has become not only a way to maintain health, but also a fashionable trend - even those who previously avoided physical activity with all their might begin to engage in fitness. Fitness is becoming an integral part of our existence, and promoting a healthy lifestyle brings undoubted benefits. But surely everyone knows many stories of friends and relatives who "ripped off their backs" in the gym, because they could not properly use numerous simulators and follow the technique of performing exercises.