Strength sports are a group of sports that aim to test an athlete's strengths in specific extreme ways; such as by competing for the largest muscles or maximizing the amount of weight that an individual can lift. This sport has its origins in the UK, where only males were the participants. With teams and athletes being introduced to more accessible and higher performing sporting equipment, the popularity of strength sports has grown in every part of the world and now also includes adult females. While these sports may be extreme, humans do variations of these sports to lose weight, rehab from surgery, or to fight the effects of a sedentary job. Some common types of strength sports include activities such as bodybuilding, strongman, weightlifting, powerlifting, and functional fitness.