Chinese scholar Xiong Douyin believes that physical fitness can be divided into general physical fitness and small physical fitness. Generally speaking, energy refers to physical ability, including physical exercise ability, physical adaptability, physical function and various physical qualities. Small physical fitness is physical training and physical training in sports training.
Wang Xing believes that physical fitness is the general term for physical strength and special sports ability. Physical strength includes physical quality and potential, and physical quality refers to special physical quality; Special sports ability refers to the ability to master various techniques in situations similar to confrontation or competition.
Yuan believes that physical fitness is the morphological structure, function and regulation acquired by human body through congenital inheritance and acquired training, the potential ability of material energy storage and transfer, and the comprehensive ability of combining with the external environment.
Wang Baocheng believes that physical fitness includes physical quality and intangible quality, the former refers to physical ability and the latter refers to psychological ability. Physical quality consists of three parts: physical structure, physical function and intellectual will. From the perspective of social life, physical quality is the physical ability to actively adapt to life, the ability to work and the ability to survive against diseases.
Lan Rong, a scholar in China, believes that physique can refer to a healthy state. Good adaptation of human body to environment includes adaptation to basic survival, adaptation to daily life and basic activities, adaptation to productive labor and adaptation to competitive sports. The adaptation to basic survival, daily life, basic activities and productive labor is the most basic state of physical fitness, while the adaptation to sports training and competition is the advanced adaptation of physical fitness.
To sum up, physical fitness is the comprehensive ability of the human body to adapt to the environment. Physical fitness includes healthy physical fitness and competitive physical fitness.