CrossFit is a fitness technology system.

CrossFit originally meant cross fitness, also known as mixed fitness. Different from bodybuilding, it does not pay attention to physical appearance and emphasizes isolated muscle training. Instead, it aims at obtaining a specific athletic ability, and enhances physical fitness and athletic ability through various high-frequency, rapid and explosive movements with their own weight and load as the center of gravity. It develops not only strength, but all the conditions needed to complete sports, such as explosiveness, speed, coordination and endurance, so it is also called overall strength.

Compared with traditional fitness methods, CrossFit is closer to natural fitness, which is more conducive to comprehensive physical exercise in an effective time. Multi-mode aerobic and anaerobic interspersed training significantly improved aerobic endurance, anaerobic endurance and explosive force. The physique produced by this exercise method is suitable for providing quality training for other sports more widely and is loved by soldiers, troops and other athletes.

CrossFit is a training system or organization, which holds a CrossFit competition once a year to compete who is the strongest man and woman on earth, which is also broadcast on ESPN sports channel. CrossFit also implies the concept of collective training in boot camps, in which a group of people train together indoors or outdoors. In group training, mutual encouragement and encouragement can complete a physical training, which has the effect of group therapy.