Physical fitness can be divided into two categories, one is health-related physical fitness, and the other is physical fitness related to sports skills.
Physical fitness is the basic sports ability formed by human body through sports qualities such as strength, speed, endurance, coordination, flexibility and agility, and it is an important part of athletes' competitive ability. The level of physical fitness is closely related to the morphological and functional characteristics of the human body. The morphological characteristics of human body are the qualitative basis of its physical fitness, and the functional characteristics of human body are the biological functional basis of its physical fitness.