Legal analysis: If the fitness equipment is unqualified, the gym safety measures are incomplete, and the gym people are injured due to human factors, then they are basically responsible. If I accidentally use the wrong equipment, don't listen to the guidance of the gym staff and use the wrong method to exercise, then I will bear the main responsibility. It depends on the specific situation.

Legal basis: Article 1 198 of the Civil Code of People's Republic of China (PRC). Operators, managers or organizers of mass activities in hotels, shopping malls, banks, stations, airports, stadiums, entertainment places and other business places shall bear tort liability if they fail to fulfill their security obligations and cause damage to others. If the behavior of a third party causes damage to others, the third party shall bear the tort liability. If the campers, managers or organizers fail to fulfill their security obligations, they shall bear corresponding supplementary responsibilities. Operators, managers or organizers may claim compensation from a third party after assuming supplementary responsibilities.