A training method focusing on human function and activity. American fitness refers to a training method that centers on human body function and activity, and aims at maximizing performance and restoring the balance of human body function. It pays attention to training individual physiological characteristics, which is more effective and makes the training effect more obvious. American physical training combines various forms of expression, so that the human body has the greatest exercise efficiency, increases resistance and endurance, and prolongs exercise endurance. The main contents include: strengthening muscles, improving muscle strength, movement accuracy and mechanical coordination; Training repetitive movements to improve motor skills; Improve physical coordination, increase physical coordination and strength; Strengthen strength training to maintain the strength and resistance of the core parts of the body; Improve flexibility and promote muscle plasticity. In addition, American physical training can also improve tensile mechanics, reduce injuries, improve resilience and help the body recover better function and state.